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HomeMy WebLinkAbout08120012 Carmel Executive Suites (117th & College) Large Plan Pg 9Physical Property Filtering Efficiency SEASONAL SOIL PROTECTION CHART Non -Woven 85% UV Resistance (Inhibitors and stabilizers to ensure six month minimum life at temperatures of 0° to 120° F) 70% 85% Tensile Strength at 20% Elongation: Standard Strength Extra Strength STABILIZATION PRACTICE JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEPT. OCT. NOV. DEC. PERMANENT SEEDING 35 lbs. A May 1 July 30 Buckwheat 60 lbs. /I /I(-- 1 to 2 inches May 11 Aug. 10 Sorghum 35 lbs. 1 to 2 inches DORMANT SEEDING B B TEMPORARY SEEDING C /1 D i E N F SODDING 8////// MULCHING G Physical Property Filtering Efficiency Woven 85% Non -Woven 85% UV Resistance (Inhibitors and stabilizers to ensure six month minimum life at temperatures of 0° to 120° F) 70% 85% Tensile Strength at 20% Elongation: Standard Strength Extra Strength 30 Ibs. /linear inch 50 lbs. /linear inch 50 Ibs. /linear inch 70 lbs. /linear inch Slurry Flow Rate 0.3 gal. /min. /sq. ft. 4.5 gal. /min. /sq. ft. Water Flow Rate 15 gal. /min. /sq. ft. 220 gal. /min. /sq. ft. Seed Speciesl Rate per Acre Planting Depth Optimum Dates2 Wheat or Rye 150 lbs, 1 to 1% inches Sept. 15 Oct. 30 Spring Oats 100 lbs. 1 inch March 1 April 15 Annual Ryegrass 40 lbs. '/a inch March 1 May 1 Aug. 1 Sept. 1 German Millet 40 lbs. 1 to 2 inches May 1 June 1 Sudangrass 35 lbs. 1 to 2 inches May 1 July 30 Buckwheat 60 lbs. 1 to 2 inches April 15 June 1 Corn (broadcast) 300 lbs. 1 to 2 inches May 11 Aug. 10 Sorghum 35 lbs. 1 to 2 inches May 1 July 15 Physical Property Woven Geotextile Fabric Non -Woven Geotextile Fabric Filtering efficiency Textile strength at 20% elongation Standard strength Extra strength 85% 30 lbs. per linear inch 50 lbs. per linear inch 85% 50 lbs. per linear inch 70 lbs. per linear inch Slurry flow rate 0.3 gal. /mic. /square feet 4.5 gal. /min. /square feet Water flow rate 15 gal. /min. /square feet 220 gal. /min. /square feet UV resistance 70% 85% Post spacing 7 feet 5 feet See;d ��v Rate per Acre Pure Live Seed Optimum Soil pH 1. Perennial ryegrass ,white, 150 lbs. 2 lbs. 5.5 to 7.0 2. Kentucky bluegrass smooth brornegra ss switchgrass timothy perennial ryegrass white clover 2 20 lbs. 10 lbs. 3 lbs. 4 lbs. 10 lbs. 2 lbs. 5.5 to 7.5 3. Tall fescue white clover 2 150 lbs. 2 lbs. 5.5 to 7.5 4. Tall fescue2 perennial ryegrass Kentucky bluegrass 150 lbs. 20 lbs. 20 lbs. 5 5 to 7 5 V�IGtl k S..s sv g Seed Mixtures Rate per Acre Optimum Soil pH Pure Live Seed 1. Smooth bronze grass 35 lbs. red clover, 20 lbs. 5.5 to 7.0 2. Tall fescue: 50 lbs. white clover. 2 lbs. 5.5 to 7.5 3. Tall fescue2 50 ibs red cloven 20 lbs. 5.5 to 7.5 4. Orchard grass 30 lbs. red clover; 20 lbs 5 6 to 7.0 white clover, 2 lbs. 5 Crownvetchi 12 lbs. tall fescue2 30 lbs. 5.6 to 7.0 Seed Mixtures Rate per Acre Optimum Soil pH Pure Live Seed 1. Perennial ryegrass 7 lbs. white clover, 2 lbs. 5.6 to 7.0 2. Perennial ryegrass 70 lbs. tail fescue2 50 lbs. 5.6 to 7.0 3. Tall fescue2 70 lbs. white cloven 2 lbs. 5.5 to 7,5 e.3�n eat 00, to c.0 .a, ,...e.. Seed Mixtures Rate per Acre Optimum Soil pH Pure Live Seed 1. Bluegrass 140 lbs. 5.5 to 7.0 2. Perennial ryegrass 60 lbs. (turf type) 90 lbs. 5.6 to 7.0 3. Tail fescue (turf type)2 170 lbs. bluegrass 30 lbs. 5.6 to 7.5 Percent Slope Maximum Distance <2% <50:1 100 feet 2% 5% 50:1 to 20:1 75 feet 5% 10 %(1) 20:1 to 10:1 50 feet 10% 20 %(1) 10:1 to 5:1 25 feet 20 %(1) 5:1 15 feet PERMANENT SEED NG Purpose 't o provide permanent vegetative cover and improve visual aesthetics of a project site. To reduce erosion and sedimentation damage by stabilizing disturbed areas. To reduce problems associated with mud or dust from unvegetated soil surfaces. To reduce sediment -laden storm water runoff from being transported to downstream areas, Seedbed Pre ratio Grade and apply soil amendments. Seeding Frequency Seed final graded areas daily while soil is still loose and moist, Densi of Vegetative Cover Ninety percent or greater over the soil surface. Materials Soil Amendments Select materials and rates as determined by a soil test (contact your County soil and water conservation district or cooperative extension office for assistance and soil information, including available soil testing services) or 400 to 600 pounds of 12- 12-12 analysis fertilizer, or equivalent. Consider the use of reduced phosphorus application where soil tests indicate adequate phosphorous levels in the soil prole. Seed Select an appropriate plant species seed or seed mixture on the basis of soil type, soil pH, region of the state, time of year, and intended land use of the area to be seeded (see Table 1). Mulch Straw, hay, wood fiber, etc. (to protect seedbed, retain moisture, and encourage plant growth). Anchored to prevent removal by wind or water or covered with premanufactured erosion control blankets. Site Preparation 1. Grade the site to achieve positive drainage. 2. Add topsoil or compost mulch to achieve needed depth for establishment of vegetation. (Compost material may be added to improve soil moisture holding capacity, soil friability, and nutrient availability.) See dbed Preparation 1. Test soil to determine pH and nutrient levels. 2. Apply soil amendments as recommended by the soil test and work into the upper two to four inches of soil. If testing is not done, apply 400 to 600 pounds per acre of 12 -12 -12 analysis fertilizer, or equivalent. 3. Till the soil to obtain a uniform seedbed. Use a disk or rake, operated across the slope, to work the soil amendments into the upper two to four inches of the soil. Seed Optimum seeding dates are March 1 to May 10 and August 10 to September 30. Permanent seeding done between May 10 and August 10 may need to be irrigated. Seeding outside or beyond optimum seeding dates is still possible with the understanding that reseeding or overseeding may be required if adequate surface cover is not achieved. Reseeding or overseeding can be easily accomplished if the soil surface remains well protected with mulch. 1. Select a seeding mixture and rate from Table 1. Select seed mixture based on site conditions, soil pH, intended land use, and expected level of maintenance. 2. Apply seed uniformly with a drill or cultipacker seeder (see Figure 1) or by broadcasting (see Figure 2). Plant or cover the seed to a depth of one fourth to one -half inch. If drilling or broadcasting the seed, ensure good seed -to -soil contact by firming the seedbed with a roller or cultipacker after completing seeding operations. (If seeding is done with a hydroseeder (see Figure 3), fertilizer and mulch can be applied with the seed in a slurry mixture.) 3. Mulch all seeded areas and use appropriate methods to anchor the mulch in place. Consider using erosion control blankets on sloping areas and conveyance channels. Maintenance Inspect within 24 hours of each rain event and at least once every seven calendar days until the vegetation is successfully established. Characteristics of a successful stand include vigorous dark green or bluishgreen seedlings with a uniform vegetative cover density of 90 percent or more. Check. for erosion or movement of mulch. Repair damaged, bare, gullied, or sparsely vegetated areas and then fertilize, reseed, and apply and anchor mulch. If plant cover is sparse or patchy, evaluate the plant materials chosen, soil fertility, moisture condition, and mulch application; repair affected areas either by overseeding or preparing a new seedbed and reseeding. Apply and anchor mulch on the newly seeded areas. If vegetation fails to grow, consider soil testing to determine soil pH or nutrient deficiency problems. (Contact your soil and water conservation district or cooperative extension office for assistance.) If additional fertilization is needed to get a satisfactory stand, do so according to soil test recommendations. Add fertilizer the following growing season. Fertilize according to soil test recommendations. Fertilize turf areas annually, Apply fertilizer in a split application. For cool season grasses, apply one -half of the fertilizer in late spring and onehalf in early fall. For warm season grasses, apply one -third in early spring, one -third in late spring, and the remaining one -third in middle summer. PERMANENT SEEDING Table 1. Permanent Seeding Recommendations This table provides several seed mixture options. Additional seed mixtures are available commercially. When selecting a mixture, consider intended and use and site conditions, including soil properties (e.g., soil pH and drainage), slope aspect, and the tolerance of each species to shade and drought. Maintenance Areas (remainin idle more than six months) Maint e nance Areas not mowed d Flow A KENTUCKY BLUEGRASS 100 LBS. /ACRE; CREEPING RED FESCUE PLUS 2 TONS STRAW MULCH /ACRE, OR ADD ANNUAL RYEGRASS B KENTUCKY BLUEGRASS 120 LBS. /ACRE; CREEPING RED FESCUE PLUS 2 TONS STRAW MULCH /ACRE, OR ADD ANNUAL RYEGRASS C SPRING OATS 3 BUSHELS /ACRE D WHEAT OR RYE 2 BUSHELS /ACRE E ANNUAL RYEGRASS 40 LBS. /ACRE 1 LB /1000 SQ. FT. F SOD G STRAW MULCH 2 TONS /ACRE /I IRRIGATION NEEDED DURING JUNE, JULY, AUGUST AND /OR SEPTEMBER IRRIGATION NEEDED FOR 2 TO 3 WEEKS AFTER SUPPLYING SOD SEEDBED PREPARATION FOR PERMANENT SEEDING: 1.TEST SOIL TO DETERMINE pH AND NUTREINT LEVELS. (CONTACT COUNTY SWCD OR COOPERATIVE EXTENSION OFFICE FOR ASSISTANCE AND SOILS INFORMATION, INCLUDING AVAILABLE TESTING SERVICES.) 2. IF SOIL pH IS UNSUITABLE FOR THE SPECIES TO BE SEEDED, APPLY LIME ACCORDING TO TEST RECOMMENDATIONS. 3. FERTILIZE AS RECOMMENDED BY THE SOIL TEST. IF TESTING WAS NOT DONE, CONSIDER APPLYING 400 -600 lbs/ACRE OF 12 -12 -12 ANALSIS, OR EQUIVALENT, FERTILIZER. 4. TILL TOP SOIL TO OBTAIN A UNIFORM SEEDBED, WORKING THE FERTILIZER AND LINE INTO THE SOIL 2 -4 INCHES DEEP WITH A DISK OR A RAKE OPERATED ACROSS THE SLOPE. RULE 5 REQUIRES ALL DISTURBED AREAS LIKELY TO BE IDLER FOR 15 DAYS SHALL HAVE SURFACE STABUIZATION APPLIED. WHEN WEATHER CONDITIONS PREVENT RAPID GERMINATION OF GRASS, THEN 2T /AC MULCH WILL BE USED TO ENSURE GROUND STABILIZATION REQUIREMENTS ARE MET. TEMPORARY SEEDING Purpose To provide vegetative cover where permanent seeding is not desirable or practical. To reduce erosion and sedimentation damage by stabilizing disturbed areas. To reduce problems associated with mud or dust from unvegetated soil surfaces during construction. To reduce sediment -laden storm water runoff from being transported to downstream areas. To improve visual aesthetics of construction areas. Specifications Seedbed Preparation Grade and apply soil amendments. Seedin Frequency Seed rough graded areas daily while soil is still loose and moist. Density of Vegetative Cover Eighty percent or greater over the soil surface. Table 1 Seeding Specifications 100 LBS. /ACRE; 20 LBS. /ACRE 120 LBS./ACRE; 30 LBS. /ACRE 1 Perennial species may be used as a temporary cover, especially if the area to be seeded will remain idle for more than one year (see Permanent Seeding on page 35). 2 Seeding done outside the optimum seeding dates increases the chances of seeding failure. Dates may be extended or shortened based on the location of the project site within the state. Notes: Mulch alone is an acceptable temporary cover and may be used in lieu of temporary seeding, provided that it is appropriately anchored. A high potential for fertilizer, seed, and mulch to wash exists on steep banks, cuts, and in channels and areas of concentrated flow. Materials Soil Amendments Select materials and rates as determined by a soil test (contact your county soil and water conservation district or cooperative extension office for assistance and soil information, including available soil testing services) or 400 to 600 pounds of 12 -12 -12 analysis fertilizer, or equivalent. Consider the use of reduced phosphorus application where soil tests indicate adequate phosphorous levels in the soil profile. Seed Select appropriate plant species seed or seed mixtures on the basis of quick germination, growth, and time of year to be seeded (see Table 1). Mulch Straw, hay, wood fiber. etc. (to protect seedbed, retain moisture, and encourage plant growth). Anchored to prevent removal by wind or water or covered with manufactured erosion control blankets. TEMPORARY SEEDING NON WOVEN GEOTEXTILE FABRIC FILTER FABRIC EXTEND FABRIC WIRE TO 4" BELOW SURFACE SPACE POSTS PER .4 MANUFACTURER RECOMMENDATIONS 0 f 11 41 0 0 1 1 i Y FLOW WIRE WOOD POST N SILT FENCE CO \STRUCTIO\ NTS Purpose To trap sediment from small, disturbed areas by reducing the velocity of sheet flow. Silt fences capture sediment by ponding water to allow deposition, not by filtration. Note: Silt fence is not recommended for use as a diversion and should not be used across a stream, channel, ditch, swale, or anywhere that concentrated flow is anticipated. Drainage Area Limited to one quarter acre per 100 linear feet of fence. Further restricted by slope steepness (see Table 1). Effective Life Six months (maximum). Location Installed parallel to the slope contour. Minimum of 10 feet beyond the toe of the slope to provide a broad, shallow sediment pool. Accessible for maintenance (removal of sediment and silt fence repair). Specifications Spacing Table 1. Slope Steepness Restrictions 1 Consider other alternatives. Note: Multiple rows of silt fence are not recommended on the same slope. Trench Depth eight inches minimum. Width four inches minimum. After installing fence, backfill with soil material and compact (to bury and anchor the lower portion of the fence fabric). Note: An alternative to trenching is to use mechanical equipment to plow in the silt fence. Materials and Silt Fence Specifications Fabric woven or non -woven geotextile fabric meeting specified minimums outlined in Table 2. 2. Geotextile Fabric Specifications for Silt Fence (minimum) Note: Silt fences can be purchased commercially. Height a minimum of 18 inches above ground level (30 inches maximum). Reinforcement fabric securely fastened to posts with wood lathe. Support Posts 2 x 2 inch hardwood posts. Steel fence posts may be substituted for hardwood posts (steel posts should have projections for fastening fabric). Spacing Eight feet maximum if fence is supported by wire mesh fencing. Six feet maximum for extra strength fabric without wire backing. Installation Prefabricated silt fence NOTE: POSTS SHALL HAVE A MINIMUM LENGTH OF 36 INCHES PLUS BURIAL DEPTH. POST MATERIAL SHALL BE WOOD, STEEL, OR SYNTHETIC, AND SHALL BE OF SUFFICIENT STRENGTH TO RESIST DAMAGE DURING INSTALLATION AND TO SUPPORT APPLIED LOADS. FABRIC SHALL BE A WOVEN GEOTEXTILE FABRIC CONSISTING OF STRONG, ROT RESISTANT, MATERIALS RESISTANT TO DETERIORATION FROM ULTRAVIOLET AND HEAT EXPOSURE. STORM WATER POLLUTION PREVENTION PLAN 4oz. MINIMUM NON WOVEN GEOTEXTILE FABRIC. PART OF THE S.E. 1/4, SECTION 35, TOWNSHIP 18 NORTH, RANGE 3 EAST, CLAY TOWNSHIP, HAMILTON COUNTY, INDIANA PARCEL NO: 16- 09- 35- 00- 01- 035.002 DOCKET NO: 08120012 ADLS z cc PROFILE NTS PROVIDE APPROPRIATE TRANSITION BETWEEN STABILIZED CONSTRUCTION ENTRANCE AND EXISTING PAVEMENT. EXISTING GROUN PLAN VIEW EXISTING GROUND LINE. STABILIZED CONSTRUCTION ENTRANCE Purpose To provide ingress /egress to a construction site and minimize tracking of mud and sediment onto public roadways. Dimensions Width 20 feet minimum or full width of entrance /exit roadway, whichever is greater. Length 150 feet minimum (length can be shorter for small sites). Thickness eight inches minimum. Installation 1. Remove all vegetation and other objectionable material from the foundation area. 2. Grade foundation and crown for positive drainage. If the slope of the construction entrance is toward a public road and exceeds two percent, construct an eight inch high diversion ridge with a ratio of 3 -to -1 side slopes across the foundation area about 15 feet from the entrance to divert runoff away from the road (see Temporary Construction Ingress /Egress Pad Cross Section View Worksheet). 3. Install a culvert pipe under the pad if needed to maintain proper public road drainage. 4. If wet conditions are anticipated, place geotextile fabric on the graded foundation to improve stability. 5. Place aggregate (INDOT CA No. 2) to the dimensions and grade shown in the construction plans, leaving the surface smooth and sloped for drainage. 6. Top -dress the first 50 feet adjacent to the public roadway with two to three inches of washed aggregate (INDOT CA No. 53) [optional, used primarily where the purpose of the pad is to keep soil from adhering to vehicle tires]. 7. Where possible, divert all storm water runoff and drainage from the ingress /egress pad to a sediment trap or basin. Materials One to two and one -half inch diameter washed aggregate [Indiana Department of Transportation Course Aggregate No. 2 (see Appendix D)]. One -half to one and one -half inch diameter washed aggregate [INDOT CA No. 53 (see Appendix D)]. Geotextile fabric underlayment (see Appendix C) (used as a separation layer to prevent intermixing of aggregate and the underlying soil material and to provide greater bearing strength when encountering wet conditions or soils with a seasonal high water table limitation). Ma inspect daily. eshape pad as needed for drainage and runoff control. Top dress with clean aggregate as needed. immediately remove mud and sediment tracked or washed onto public roads. Flushing should only be used if the water can be conveyed into a sediment trap or basin. EXISTING PAVEMENT Purpose To capture sediment at the entrance to a storm drain inlet, allowing full use of the storm drain system during the construction period. Note: This measure is not recommended for paved surfaces due to inability to entrench the fabric and lack of an anchoring system. Note: Alternative support systems may be substituted for hardwood posts and cross braces. Contributing Drainage Area One acre maximum. Effective Life Six months (maximum). Capacity Runoff from a two -year frequency, 24 -hour storm event entering a storm drain without bypass flow. Geotextile Structure Height 12 to 18 inches, measured from top of storm drain inlet. Post spacing 36 -inch maximum spacing between posts. Frame support bracing to strengthen integrity of the structure. (Structure must withstand 12 -foot head of water and sediment without collapsing or undercutting.) GEOTEXTILE FABRIC DROP INLET PROTECTION Materials Support posts 2 x 2 inch or 2 x 4 inch hardwood posts. Three feet length, minimum. 1 x 2 inch or 1 x 3 inch hardwood cross bracing lumber. Lathe. Staples or nails. Geotextile fabric Table 1. Geotextile Fabric Specifications Installation 1. Dig an eight -inch deep, four -inch wide trench around the perimeter of the inlet. 2. If using pre assembled geotextile fabric and posts, drive the posts into the soil, tightly stretching the geotextile fabric between posts as each is driven. (Posts must be placed on the inlet side of the anchor trench with the geotextile fabric on the side of the trench farthest from the inlet.) Note: If assembling the geotextile fabric and posts on -site, drive the posts into the soil and then secure the geotextile fabric to the posts by placing a piece of lathe over the fabric and fastening it to the post (stretching the fabric between posts as it is fastened). 3. Use the wrap join method when joining posts. 4. Place the bottom 12 inches of geotextile fabric into the eight -inch deep trench, laying the remaining four inches in the bottom of the trench and extending away from the inlet. 5. Backfill the trench with soil material and compact it in place. 6. Brace the posts by nailing braces into each corner post or utilize rigid panels to support fabric. Note: In situations where storm water may bypass the structure, either: Set the top of the geotextile fabric filter at least six inches lower than the ground elevation on the down -slope side of the storm drain inlet, Build a temporary dike, compacted to six inches higher than the fabric, on the down -slope side of the storm drain inlet, AND /OR Use in conjunction with excavated drop inlet protection. 0 0 CO N c W 9- 0 0 0) N 0 N 0 w W 0) 0 N N 0 0 0 0 U- IL O 0 0 co O u7 O I- 0 z 0 z J W 0 N CO LI_ O N LO N M O CO 0 0 W LL m Z LL O o Q Z W Z Q f 0-z Q n 0(W z LLl z co D 0 W0 00 �0 0 I I- z Z Hai Q O U co 0 1- O z Q O 0- W N 0 For best results: (a) legume seed should be inoculated; (b) seeding mixtures containing legumes should preferably be spring- seeded, although the grass may be fail- seeded and the legume frost- seeded; and (c) if legumes are fall seeded, do so in early fall. 2 Tail fescue provides little cover for, and may be toxic; to some species of wildlife. The Indiana Department of Natural Resources recognizes the need for additional research on alternatives such as buffaiograss, orchardgrass, smooth bromegrass, and switchgrass. This research, in conjunction with demonstration areas, should focus on erosion control characteristics, wildlife toxicity, turf durability, and drought resistance. Notes: 1. An oat or wheat companion or nurse crop may be used with any of the above permanent seeding mixtures, at the following rates: (a) spring oats one fourth to three- fourths bushel per acre (b) wheal. no more than one -half bushel per acre 2. A high potential for fertilizer, seed, and ?Hutch to wash exists on steep banks, cuts, and in channels and areas of concentrated flow. Seedbed Preparation 1. Test soil to determine pH and nutrient levels. 2. Apply soil amendments as recommended by the soil test. If testing is not done, apply 400 to 600 pounds per acre of 12 -12 -12 analysis fertilizer, or equivalent. 3. Work the soil amendments into the upper two to four inches of the soil with a disk or rake operated across the slope. Seeding 1. Select a seed species or an appropriate seed mixture and application rate from Table 1. 2. Apply seed uniformly with a drill or cultipacker seeder or by broadcasting. Plant or cover seed to the depth shown in Table 1. 3. Inspect within 24 hours of each rain event and at least once every seven calendar days. 4. Check for erosion or movement of mulch and repair immediately. 5. Monitor for erosion damage and adequate cover (80 percent density); reseed, fertilize, and apply mulch where necessary. 6. If nitrogen deficiency is apparent. top -dress fall seeded wheat or rye seeding with 50 pounds per acre of nitrogen in February or March. Application Notes: 1. If drilling or broadcasting the seed, ensure good seed -to -soil contact by firming the seedbed with a roller or cultipacker after completing seeding operations. 2. Daily seeding when the soil is moist is usually most effective. 3. If seeding is done with a hydroseeder, fertilizer and mulch can be applied with the seed in a slurry mixture. 4. Apply mulch and anchor it in place. 1. Lay out the location of the fence so that it is parallel to the contour of the slope and at least 10 feet beyond the toe of the slope to provide a sediment storage area. Turn the ends of the fence up slope such that the point of contact between the ground and the bottom of the fence end terminates at a higher elevation than the top of the fence at its lowest point (see Exhibit 1). 2. Excavate an eight -inch deep by four -inch wide trench along the entire length of the fence line (see Exhibit 2). Installation by plowing is also acceptable. 3. Install the silt fence with the filter fabric located on the up -slope side of the excavated trench and the support posts on the down -slope side of the trench. 4. Drive the support posts at least 18 inches into the ground, tightly stretching the fabric between the posts as each is driven into the soil. A minimum of 12 inches of the filter fabric should extend into the trench. If it is necessary t join the ends of two fences, use the wrap joint method shown in Exhibit 3.) 5. Lay the lower four inches of filter fabric on the bottom of the trench and extend it toward the up -slope side of the trench. 6. Backfill the trench with soil material and compact it in place. Note: If the silt fence is being constructed on -site, attach the filter fabric to the support posts (refer to Tables 1 and 2 for spacing and geotextile specifications) and attach wooden lathe to secure the fabric to the posts. Allow for at least 12 inches of fabric below ground level. Complete the silt fence installation, following steps 1 through 6 above. Maintenance Inspect within 24 hours of a rain event and at least once every seven calendar days. If fence fabric tears, starts to decompose, or in any way becomes ineffective, replace the affected portion immediately. Note: All repairs should meet specifications as outlined within this measure. Remove deposited sediment when it is causing the filter fabric to bulge or when it reaches one -half the height of the fence at its lowest point. When contributing drainage area has been stabilized, remove the fence and sediment deposits, grade the site to blend with the surrounding area, and stabilize. NOT FOR CONSTRUCTION APPROVAL PENDING P.E. No. 10708654 DATE: Maintenance Inspect daily. nspect geotextile fabric and make needed repairs immediately. Remove sediment from pool area to provide storage for the next storm event. Avoid damaging or undercutting fabric during sediment removal. When contributing drainage area has been stabilized, remove sediment, properly dispose of all construction material, grade area to the elevation of the storm drain inlet top, then stabilize immediately. %t\llil1 i t M Tlit, .�`C' _ma .f.s. No. 107086541 s STATE OF I L I 4„ �V ENO I ANp, `,,'C O-- LS2050017 O '9� LS20500017 -5/ ND I �,o 11 19 -08 STATE OF DATE: Seed Mixtures Rate per Acre Optimum Soil pH Pure Live Seed 1. Perennial ryegrass 7 lbs. white clover, 2 lbs. 5.6 to 7.0 2. Perennial ryegrass 70 lbs. tail fescue2 50 lbs. 5.6 to 7.0 3. Tall fescue2 70 lbs. white cloven 2 lbs. 5.5 to 7,5 e.3�n eat 00, to c.0 .a, ,...e.. Seed Mixtures Rate per Acre Optimum Soil pH Pure Live Seed 1. Bluegrass 140 lbs. 5.5 to 7.0 2. Perennial ryegrass 60 lbs. (turf type) 90 lbs. 5.6 to 7.0 3. Tail fescue (turf type)2 170 lbs. bluegrass 30 lbs. 5.6 to 7.5 Percent Slope Maximum Distance <2% <50:1 100 feet 2% 5% 50:1 to 20:1 75 feet 5% 10 %(1) 20:1 to 10:1 50 feet 10% 20 %(1) 10:1 to 5:1 25 feet 20 %(1) 5:1 15 feet PERMANENT SEED NG Purpose 't o provide permanent vegetative cover and improve visual aesthetics of a project site. To reduce erosion and sedimentation damage by stabilizing disturbed areas. To reduce problems associated with mud or dust from unvegetated soil surfaces. To reduce sediment -laden storm water runoff from being transported to downstream areas, Seedbed Pre ratio Grade and apply soil amendments. Seeding Frequency Seed final graded areas daily while soil is still loose and moist, Densi of Vegetative Cover Ninety percent or greater over the soil surface. Materials Soil Amendments Select materials and rates as determined by a soil test (contact your County soil and water conservation district or cooperative extension office for assistance and soil information, including available soil testing services) or 400 to 600 pounds of 12- 12-12 analysis fertilizer, or equivalent. Consider the use of reduced phosphorus application where soil tests indicate adequate phosphorous levels in the soil prole. Seed Select an appropriate plant species seed or seed mixture on the basis of soil type, soil pH, region of the state, time of year, and intended land use of the area to be seeded (see Table 1). Mulch Straw, hay, wood fiber, etc. (to protect seedbed, retain moisture, and encourage plant growth). Anchored to prevent removal by wind or water or covered with premanufactured erosion control blankets. Site Preparation 1. Grade the site to achieve positive drainage. 2. Add topsoil or compost mulch to achieve needed depth for establishment of vegetation. (Compost material may be added to improve soil moisture holding capacity, soil friability, and nutrient availability.) See dbed Preparation 1. Test soil to determine pH and nutrient levels. 2. Apply soil amendments as recommended by the soil test and work into the upper two to four inches of soil. If testing is not done, apply 400 to 600 pounds per acre of 12 -12 -12 analysis fertilizer, or equivalent. 3. Till the soil to obtain a uniform seedbed. Use a disk or rake, operated across the slope, to work the soil amendments into the upper two to four inches of the soil. Seed Optimum seeding dates are March 1 to May 10 and August 10 to September 30. Permanent seeding done between May 10 and August 10 may need to be irrigated. Seeding outside or beyond optimum seeding dates is still possible with the understanding that reseeding or overseeding may be required if adequate surface cover is not achieved. Reseeding or overseeding can be easily accomplished if the soil surface remains well protected with mulch. 1. Select a seeding mixture and rate from Table 1. Select seed mixture based on site conditions, soil pH, intended land use, and expected level of maintenance. 2. Apply seed uniformly with a drill or cultipacker seeder (see Figure 1) or by broadcasting (see Figure 2). Plant or cover the seed to a depth of one fourth to one -half inch. If drilling or broadcasting the seed, ensure good seed -to -soil contact by firming the seedbed with a roller or cultipacker after completing seeding operations. (If seeding is done with a hydroseeder (see Figure 3), fertilizer and mulch can be applied with the seed in a slurry mixture.) 3. Mulch all seeded areas and use appropriate methods to anchor the mulch in place. Consider using erosion control blankets on sloping areas and conveyance channels. Maintenance Inspect within 24 hours of each rain event and at least once every seven calendar days until the vegetation is successfully established. Characteristics of a successful stand include vigorous dark green or bluishgreen seedlings with a uniform vegetative cover density of 90 percent or more. Check. for erosion or movement of mulch. Repair damaged, bare, gullied, or sparsely vegetated areas and then fertilize, reseed, and apply and anchor mulch. If plant cover is sparse or patchy, evaluate the plant materials chosen, soil fertility, moisture condition, and mulch application; repair affected areas either by overseeding or preparing a new seedbed and reseeding. Apply and anchor mulch on the newly seeded areas. If vegetation fails to grow, consider soil testing to determine soil pH or nutrient deficiency problems. (Contact your soil and water conservation district or cooperative extension office for assistance.) If additional fertilization is needed to get a satisfactory stand, do so according to soil test recommendations. Add fertilizer the following growing season. Fertilize according to soil test recommendations. Fertilize turf areas annually, Apply fertilizer in a split application. For cool season grasses, apply one -half of the fertilizer in late spring and onehalf in early fall. For warm season grasses, apply one -third in early spring, one -third in late spring, and the remaining one -third in middle summer. PERMANENT SEEDING Table 1. Permanent Seeding Recommendations This table provides several seed mixture options. Additional seed mixtures are available commercially. When selecting a mixture, consider intended and use and site conditions, including soil properties (e.g., soil pH and drainage), slope aspect, and the tolerance of each species to shade and drought. Maintenance Areas (remainin idle more than six months) Maint e nance Areas not mowed d Flow A KENTUCKY BLUEGRASS 100 LBS. /ACRE; CREEPING RED FESCUE PLUS 2 TONS STRAW MULCH /ACRE, OR ADD ANNUAL RYEGRASS B KENTUCKY BLUEGRASS 120 LBS. /ACRE; CREEPING RED FESCUE PLUS 2 TONS STRAW MULCH /ACRE, OR ADD ANNUAL RYEGRASS C SPRING OATS 3 BUSHELS /ACRE D WHEAT OR RYE 2 BUSHELS /ACRE E ANNUAL RYEGRASS 40 LBS. /ACRE 1 LB /1000 SQ. FT. F SOD G STRAW MULCH 2 TONS /ACRE /I IRRIGATION NEEDED DURING JUNE, JULY, AUGUST AND /OR SEPTEMBER IRRIGATION NEEDED FOR 2 TO 3 WEEKS AFTER SUPPLYING SOD SEEDBED PREPARATION FOR PERMANENT SEEDING: 1.TEST SOIL TO DETERMINE pH AND NUTREINT LEVELS. (CONTACT COUNTY SWCD OR COOPERATIVE EXTENSION OFFICE FOR ASSISTANCE AND SOILS INFORMATION, INCLUDING AVAILABLE TESTING SERVICES.) 2. IF SOIL pH IS UNSUITABLE FOR THE SPECIES TO BE SEEDED, APPLY LIME ACCORDING TO TEST RECOMMENDATIONS. 3. FERTILIZE AS RECOMMENDED BY THE SOIL TEST. IF TESTING WAS NOT DONE, CONSIDER APPLYING 400 -600 lbs/ACRE OF 12 -12 -12 ANALSIS, OR EQUIVALENT, FERTILIZER. 4. TILL TOP SOIL TO OBTAIN A UNIFORM SEEDBED, WORKING THE FERTILIZER AND LINE INTO THE SOIL 2 -4 INCHES DEEP WITH A DISK OR A RAKE OPERATED ACROSS THE SLOPE. RULE 5 REQUIRES ALL DISTURBED AREAS LIKELY TO BE IDLER FOR 15 DAYS SHALL HAVE SURFACE STABUIZATION APPLIED. WHEN WEATHER CONDITIONS PREVENT RAPID GERMINATION OF GRASS, THEN 2T /AC MULCH WILL BE USED TO ENSURE GROUND STABILIZATION REQUIREMENTS ARE MET. TEMPORARY SEEDING Purpose To provide vegetative cover where permanent seeding is not desirable or practical. To reduce erosion and sedimentation damage by stabilizing disturbed areas. To reduce problems associated with mud or dust from unvegetated soil surfaces during construction. To reduce sediment -laden storm water runoff from being transported to downstream areas. To improve visual aesthetics of construction areas. Specifications Seedbed Preparation Grade and apply soil amendments. Seedin Frequency Seed rough graded areas daily while soil is still loose and moist. Density of Vegetative Cover Eighty percent or greater over the soil surface. Table 1 Seeding Specifications 100 LBS. /ACRE; 20 LBS. /ACRE 120 LBS./ACRE; 30 LBS. /ACRE 1 Perennial species may be used as a temporary cover, especially if the area to be seeded will remain idle for more than one year (see Permanent Seeding on page 35). 2 Seeding done outside the optimum seeding dates increases the chances of seeding failure. Dates may be extended or shortened based on the location of the project site within the state. Notes: Mulch alone is an acceptable temporary cover and may be used in lieu of temporary seeding, provided that it is appropriately anchored. A high potential for fertilizer, seed, and mulch to wash exists on steep banks, cuts, and in channels and areas of concentrated flow. Materials Soil Amendments Select materials and rates as determined by a soil test (contact your county soil and water conservation district or cooperative extension office for assistance and soil information, including available soil testing services) or 400 to 600 pounds of 12 -12 -12 analysis fertilizer, or equivalent. Consider the use of reduced phosphorus application where soil tests indicate adequate phosphorous levels in the soil profile. Seed Select appropriate plant species seed or seed mixtures on the basis of quick germination, growth, and time of year to be seeded (see Table 1). Mulch Straw, hay, wood fiber. etc. (to protect seedbed, retain moisture, and encourage plant growth). Anchored to prevent removal by wind or water or covered with manufactured erosion control blankets. TEMPORARY SEEDING NON WOVEN GEOTEXTILE FABRIC FILTER FABRIC EXTEND FABRIC WIRE TO 4" BELOW SURFACE SPACE POSTS PER .4 MANUFACTURER RECOMMENDATIONS 0 f 11 41 0 0 1 1 i Y FLOW WIRE WOOD POST N SILT FENCE CO \STRUCTIO\ NTS Purpose To trap sediment from small, disturbed areas by reducing the velocity of sheet flow. Silt fences capture sediment by ponding water to allow deposition, not by filtration. Note: Silt fence is not recommended for use as a diversion and should not be used across a stream, channel, ditch, swale, or anywhere that concentrated flow is anticipated. Drainage Area Limited to one quarter acre per 100 linear feet of fence. Further restricted by slope steepness (see Table 1). Effective Life Six months (maximum). Location Installed parallel to the slope contour. Minimum of 10 feet beyond the toe of the slope to provide a broad, shallow sediment pool. Accessible for maintenance (removal of sediment and silt fence repair). Specifications Spacing Table 1. Slope Steepness Restrictions 1 Consider other alternatives. Note: Multiple rows of silt fence are not recommended on the same slope. Trench Depth eight inches minimum. Width four inches minimum. After installing fence, backfill with soil material and compact (to bury and anchor the lower portion of the fence fabric). Note: An alternative to trenching is to use mechanical equipment to plow in the silt fence. Materials and Silt Fence Specifications Fabric woven or non -woven geotextile fabric meeting specified minimums outlined in Table 2. 2. Geotextile Fabric Specifications for Silt Fence (minimum) Note: Silt fences can be purchased commercially. Height a minimum of 18 inches above ground level (30 inches maximum). Reinforcement fabric securely fastened to posts with wood lathe. Support Posts 2 x 2 inch hardwood posts. Steel fence posts may be substituted for hardwood posts (steel posts should have projections for fastening fabric). Spacing Eight feet maximum if fence is supported by wire mesh fencing. Six feet maximum for extra strength fabric without wire backing. Installation Prefabricated silt fence NOTE: POSTS SHALL HAVE A MINIMUM LENGTH OF 36 INCHES PLUS BURIAL DEPTH. POST MATERIAL SHALL BE WOOD, STEEL, OR SYNTHETIC, AND SHALL BE OF SUFFICIENT STRENGTH TO RESIST DAMAGE DURING INSTALLATION AND TO SUPPORT APPLIED LOADS. FABRIC SHALL BE A WOVEN GEOTEXTILE FABRIC CONSISTING OF STRONG, ROT RESISTANT, MATERIALS RESISTANT TO DETERIORATION FROM ULTRAVIOLET AND HEAT EXPOSURE. STORM WATER POLLUTION PREVENTION PLAN 4oz. MINIMUM NON WOVEN GEOTEXTILE FABRIC. PART OF THE S.E. 1/4, SECTION 35, TOWNSHIP 18 NORTH, RANGE 3 EAST, CLAY TOWNSHIP, HAMILTON COUNTY, INDIANA PARCEL NO: 16- 09- 35- 00- 01- 035.002 DOCKET NO: 08120012 ADLS z cc PROFILE NTS PROVIDE APPROPRIATE TRANSITION BETWEEN STABILIZED CONSTRUCTION ENTRANCE AND EXISTING PAVEMENT. EXISTING GROUN PLAN VIEW EXISTING GROUND LINE. STABILIZED CONSTRUCTION ENTRANCE Purpose To provide ingress /egress to a construction site and minimize tracking of mud and sediment onto public roadways. Dimensions Width 20 feet minimum or full width of entrance /exit roadway, whichever is greater. Length 150 feet minimum (length can be shorter for small sites). Thickness eight inches minimum. Installation 1. Remove all vegetation and other objectionable material from the foundation area. 2. Grade foundation and crown for positive drainage. If the slope of the construction entrance is toward a public road and exceeds two percent, construct an eight inch high diversion ridge with a ratio of 3 -to -1 side slopes across the foundation area about 15 feet from the entrance to divert runoff away from the road (see Temporary Construction Ingress /Egress Pad Cross Section View Worksheet). 3. Install a culvert pipe under the pad if needed to maintain proper public road drainage. 4. If wet conditions are anticipated, place geotextile fabric on the graded foundation to improve stability. 5. Place aggregate (INDOT CA No. 2) to the dimensions and grade shown in the construction plans, leaving the surface smooth and sloped for drainage. 6. Top -dress the first 50 feet adjacent to the public roadway with two to three inches of washed aggregate (INDOT CA No. 53) [optional, used primarily where the purpose of the pad is to keep soil from adhering to vehicle tires]. 7. Where possible, divert all storm water runoff and drainage from the ingress /egress pad to a sediment trap or basin. Materials One to two and one -half inch diameter washed aggregate [Indiana Department of Transportation Course Aggregate No. 2 (see Appendix D)]. One -half to one and one -half inch diameter washed aggregate [INDOT CA No. 53 (see Appendix D)]. Geotextile fabric underlayment (see Appendix C) (used as a separation layer to prevent intermixing of aggregate and the underlying soil material and to provide greater bearing strength when encountering wet conditions or soils with a seasonal high water table limitation). Ma inspect daily. eshape pad as needed for drainage and runoff control. Top dress with clean aggregate as needed. immediately remove mud and sediment tracked or washed onto public roads. Flushing should only be used if the water can be conveyed into a sediment trap or basin. EXISTING PAVEMENT Purpose To capture sediment at the entrance to a storm drain inlet, allowing full use of the storm drain system during the construction period. Note: This measure is not recommended for paved surfaces due to inability to entrench the fabric and lack of an anchoring system. Note: Alternative support systems may be substituted for hardwood posts and cross braces. Contributing Drainage Area One acre maximum. Effective Life Six months (maximum). Capacity Runoff from a two -year frequency, 24 -hour storm event entering a storm drain without bypass flow. Geotextile Structure Height 12 to 18 inches, measured from top of storm drain inlet. Post spacing 36 -inch maximum spacing between posts. Frame support bracing to strengthen integrity of the structure. (Structure must withstand 12 -foot head of water and sediment without collapsing or undercutting.) GEOTEXTILE FABRIC DROP INLET PROTECTION Materials Support posts 2 x 2 inch or 2 x 4 inch hardwood posts. Three feet length, minimum. 1 x 2 inch or 1 x 3 inch hardwood cross bracing lumber. Lathe. Staples or nails. Geotextile fabric Table 1. Geotextile Fabric Specifications Installation 1. Dig an eight -inch deep, four -inch wide trench around the perimeter of the inlet. 2. If using pre assembled geotextile fabric and posts, drive the posts into the soil, tightly stretching the geotextile fabric between posts as each is driven. (Posts must be placed on the inlet side of the anchor trench with the geotextile fabric on the side of the trench farthest from the inlet.) Note: If assembling the geotextile fabric and posts on -site, drive the posts into the soil and then secure the geotextile fabric to the posts by placing a piece of lathe over the fabric and fastening it to the post (stretching the fabric between posts as it is fastened). 3. Use the wrap join method when joining posts. 4. Place the bottom 12 inches of geotextile fabric into the eight -inch deep trench, laying the remaining four inches in the bottom of the trench and extending away from the inlet. 5. Backfill the trench with soil material and compact it in place. 6. Brace the posts by nailing braces into each corner post or utilize rigid panels to support fabric. Note: In situations where storm water may bypass the structure, either: Set the top of the geotextile fabric filter at least six inches lower than the ground elevation on the down -slope side of the storm drain inlet, Build a temporary dike, compacted to six inches higher than the fabric, on the down -slope side of the storm drain inlet, AND /OR Use in conjunction with excavated drop inlet protection. 0 0 CO N c W 9- 0 0 0) N 0 N 0 w W 0) 0 N N 0 0 0 0 U- IL O 0 0 co O u7 O I- 0 z 0 z J W 0 N CO LI_ O N LO N M O CO 0 0 W LL m Z LL O o Q Z W Z Q f 0-z Q n 0(W z LLl z co D 0 W0 00 �0 0 I I- z Z Hai Q O U co 0 1- O z Q O 0- W N 0 For best results: (a) legume seed should be inoculated; (b) seeding mixtures containing legumes should preferably be spring- seeded, although the grass may be fail- seeded and the legume frost- seeded; and (c) if legumes are fall seeded, do so in early fall. 2 Tail fescue provides little cover for, and may be toxic; to some species of wildlife. The Indiana Department of Natural Resources recognizes the need for additional research on alternatives such as buffaiograss, orchardgrass, smooth bromegrass, and switchgrass. This research, in conjunction with demonstration areas, should focus on erosion control characteristics, wildlife toxicity, turf durability, and drought resistance. Notes: 1. An oat or wheat companion or nurse crop may be used with any of the above permanent seeding mixtures, at the following rates: (a) spring oats one fourth to three- fourths bushel per acre (b) wheal. no more than one -half bushel per acre 2. A high potential for fertilizer, seed, and ?Hutch to wash exists on steep banks, cuts, and in channels and areas of concentrated flow. Seedbed Preparation 1. Test soil to determine pH and nutrient levels. 2. Apply soil amendments as recommended by the soil test. If testing is not done, apply 400 to 600 pounds per acre of 12 -12 -12 analysis fertilizer, or equivalent. 3. Work the soil amendments into the upper two to four inches of the soil with a disk or rake operated across the slope. Seeding 1. Select a seed species or an appropriate seed mixture and application rate from Table 1. 2. Apply seed uniformly with a drill or cultipacker seeder or by broadcasting. Plant or cover seed to the depth shown in Table 1. 3. Inspect within 24 hours of each rain event and at least once every seven calendar days. 4. Check for erosion or movement of mulch and repair immediately. 5. Monitor for erosion damage and adequate cover (80 percent density); reseed, fertilize, and apply mulch where necessary. 6. If nitrogen deficiency is apparent. top -dress fall seeded wheat or rye seeding with 50 pounds per acre of nitrogen in February or March. Application Notes: 1. If drilling or broadcasting the seed, ensure good seed -to -soil contact by firming the seedbed with a roller or cultipacker after completing seeding operations. 2. Daily seeding when the soil is moist is usually most effective. 3. If seeding is done with a hydroseeder, fertilizer and mulch can be applied with the seed in a slurry mixture. 4. Apply mulch and anchor it in place. 1. Lay out the location of the fence so that it is parallel to the contour of the slope and at least 10 feet beyond the toe of the slope to provide a sediment storage area. Turn the ends of the fence up slope such that the point of contact between the ground and the bottom of the fence end terminates at a higher elevation than the top of the fence at its lowest point (see Exhibit 1). 2. Excavate an eight -inch deep by four -inch wide trench along the entire length of the fence line (see Exhibit 2). Installation by plowing is also acceptable. 3. Install the silt fence with the filter fabric located on the up -slope side of the excavated trench and the support posts on the down -slope side of the trench. 4. Drive the support posts at least 18 inches into the ground, tightly stretching the fabric between the posts as each is driven into the soil. A minimum of 12 inches of the filter fabric should extend into the trench. If it is necessary t join the ends of two fences, use the wrap joint method shown in Exhibit 3.) 5. Lay the lower four inches of filter fabric on the bottom of the trench and extend it toward the up -slope side of the trench. 6. Backfill the trench with soil material and compact it in place. Note: If the silt fence is being constructed on -site, attach the filter fabric to the support posts (refer to Tables 1 and 2 for spacing and geotextile specifications) and attach wooden lathe to secure the fabric to the posts. Allow for at least 12 inches of fabric below ground level. Complete the silt fence installation, following steps 1 through 6 above. Maintenance Inspect within 24 hours of a rain event and at least once every seven calendar days. If fence fabric tears, starts to decompose, or in any way becomes ineffective, replace the affected portion immediately. Note: All repairs should meet specifications as outlined within this measure. Remove deposited sediment when it is causing the filter fabric to bulge or when it reaches one -half the height of the fence at its lowest point. When contributing drainage area has been stabilized, remove the fence and sediment deposits, grade the site to blend with the surrounding area, and stabilize. NOT FOR CONSTRUCTION APPROVAL PENDING P.E. No. 10708654 DATE: Maintenance Inspect daily. nspect geotextile fabric and make needed repairs immediately. Remove sediment from pool area to provide storage for the next storm event. Avoid damaging or undercutting fabric during sediment removal. When contributing drainage area has been stabilized, remove sediment, properly dispose of all construction material, grade area to the elevation of the storm drain inlet top, then stabilize immediately. %t\llil1 i t M Tlit, .�`C' _ma .f.s. No. 107086541 s STATE OF I L I 4„ �V ENO I ANp, `,,'C O-- LS2050017 O '9� LS20500017 -5/ ND I �,o 11 19 -08 STATE OF DATE: e.3�n eat 00, to c.0 .a, ,...e.. Seed Mixtures Rate per Acre Optimum Soil pH Pure Live Seed 1. Bluegrass 140 lbs. 5.5 to 7.0 2. Perennial ryegrass 60 lbs. (turf type) 90 lbs. 5.6 to 7.0 3. Tail fescue (turf type)2 170 lbs. bluegrass 30 lbs. 5.6 to 7.5 Percent Slope Maximum Distance <2% <50:1 100 feet 2% 5% 50:1 to 20:1 75 feet 5% 10 %(1) 20:1 to 10:1 50 feet 10% 20 %(1) 10:1 to 5:1 25 feet 20 %(1) 5:1 15 feet PERMANENT SEED NG Purpose 't o provide permanent vegetative cover and improve visual aesthetics of a project site. To reduce erosion and sedimentation damage by stabilizing disturbed areas. To reduce problems associated with mud or dust from unvegetated soil surfaces. To reduce sediment -laden storm water runoff from being transported to downstream areas, Seedbed Pre ratio Grade and apply soil amendments. Seeding Frequency Seed final graded areas daily while soil is still loose and moist, Densi of Vegetative Cover Ninety percent or greater over the soil surface. Materials Soil Amendments Select materials and rates as determined by a soil test (contact your County soil and water conservation district or cooperative extension office for assistance and soil information, including available soil testing services) or 400 to 600 pounds of 12- 12-12 analysis fertilizer, or equivalent. Consider the use of reduced phosphorus application where soil tests indicate adequate phosphorous levels in the soil prole. Seed Select an appropriate plant species seed or seed mixture on the basis of soil type, soil pH, region of the state, time of year, and intended land use of the area to be seeded (see Table 1). Mulch Straw, hay, wood fiber, etc. (to protect seedbed, retain moisture, and encourage plant growth). Anchored to prevent removal by wind or water or covered with premanufactured erosion control blankets. Site Preparation 1. Grade the site to achieve positive drainage. 2. Add topsoil or compost mulch to achieve needed depth for establishment of vegetation. (Compost material may be added to improve soil moisture holding capacity, soil friability, and nutrient availability.) See dbed Preparation 1. Test soil to determine pH and nutrient levels. 2. Apply soil amendments as recommended by the soil test and work into the upper two to four inches of soil. If testing is not done, apply 400 to 600 pounds per acre of 12 -12 -12 analysis fertilizer, or equivalent. 3. Till the soil to obtain a uniform seedbed. Use a disk or rake, operated across the slope, to work the soil amendments into the upper two to four inches of the soil. Seed Optimum seeding dates are March 1 to May 10 and August 10 to September 30. Permanent seeding done between May 10 and August 10 may need to be irrigated. Seeding outside or beyond optimum seeding dates is still possible with the understanding that reseeding or overseeding may be required if adequate surface cover is not achieved. Reseeding or overseeding can be easily accomplished if the soil surface remains well protected with mulch. 1. Select a seeding mixture and rate from Table 1. Select seed mixture based on site conditions, soil pH, intended land use, and expected level of maintenance. 2. Apply seed uniformly with a drill or cultipacker seeder (see Figure 1) or by broadcasting (see Figure 2). Plant or cover the seed to a depth of one fourth to one -half inch. If drilling or broadcasting the seed, ensure good seed -to -soil contact by firming the seedbed with a roller or cultipacker after completing seeding operations. (If seeding is done with a hydroseeder (see Figure 3), fertilizer and mulch can be applied with the seed in a slurry mixture.) 3. Mulch all seeded areas and use appropriate methods to anchor the mulch in place. Consider using erosion control blankets on sloping areas and conveyance channels. Maintenance Inspect within 24 hours of each rain event and at least once every seven calendar days until the vegetation is successfully established. Characteristics of a successful stand include vigorous dark green or bluishgreen seedlings with a uniform vegetative cover density of 90 percent or more. Check. for erosion or movement of mulch. Repair damaged, bare, gullied, or sparsely vegetated areas and then fertilize, reseed, and apply and anchor mulch. If plant cover is sparse or patchy, evaluate the plant materials chosen, soil fertility, moisture condition, and mulch application; repair affected areas either by overseeding or preparing a new seedbed and reseeding. Apply and anchor mulch on the newly seeded areas. If vegetation fails to grow, consider soil testing to determine soil pH or nutrient deficiency problems. (Contact your soil and water conservation district or cooperative extension office for assistance.) If additional fertilization is needed to get a satisfactory stand, do so according to soil test recommendations. Add fertilizer the following growing season. Fertilize according to soil test recommendations. Fertilize turf areas annually, Apply fertilizer in a split application. For cool season grasses, apply one -half of the fertilizer in late spring and onehalf in early fall. For warm season grasses, apply one -third in early spring, one -third in late spring, and the remaining one -third in middle summer. PERMANENT SEEDING Table 1. Permanent Seeding Recommendations This table provides several seed mixture options. Additional seed mixtures are available commercially. When selecting a mixture, consider intended and use and site conditions, including soil properties (e.g., soil pH and drainage), slope aspect, and the tolerance of each species to shade and drought. Maintenance Areas (remainin idle more than six months) Maint e nance Areas not mowed d Flow A KENTUCKY BLUEGRASS 100 LBS. /ACRE; CREEPING RED FESCUE PLUS 2 TONS STRAW MULCH /ACRE, OR ADD ANNUAL RYEGRASS B KENTUCKY BLUEGRASS 120 LBS. /ACRE; CREEPING RED FESCUE PLUS 2 TONS STRAW MULCH /ACRE, OR ADD ANNUAL RYEGRASS C SPRING OATS 3 BUSHELS /ACRE D WHEAT OR RYE 2 BUSHELS /ACRE E ANNUAL RYEGRASS 40 LBS. /ACRE 1 LB /1000 SQ. FT. F SOD G STRAW MULCH 2 TONS /ACRE /I IRRIGATION NEEDED DURING JUNE, JULY, AUGUST AND /OR SEPTEMBER IRRIGATION NEEDED FOR 2 TO 3 WEEKS AFTER SUPPLYING SOD SEEDBED PREPARATION FOR PERMANENT SEEDING: 1.TEST SOIL TO DETERMINE pH AND NUTREINT LEVELS. (CONTACT COUNTY SWCD OR COOPERATIVE EXTENSION OFFICE FOR ASSISTANCE AND SOILS INFORMATION, INCLUDING AVAILABLE TESTING SERVICES.) 2. IF SOIL pH IS UNSUITABLE FOR THE SPECIES TO BE SEEDED, APPLY LIME ACCORDING TO TEST RECOMMENDATIONS. 3. FERTILIZE AS RECOMMENDED BY THE SOIL TEST. IF TESTING WAS NOT DONE, CONSIDER APPLYING 400 -600 lbs/ACRE OF 12 -12 -12 ANALSIS, OR EQUIVALENT, FERTILIZER. 4. TILL TOP SOIL TO OBTAIN A UNIFORM SEEDBED, WORKING THE FERTILIZER AND LINE INTO THE SOIL 2 -4 INCHES DEEP WITH A DISK OR A RAKE OPERATED ACROSS THE SLOPE. RULE 5 REQUIRES ALL DISTURBED AREAS LIKELY TO BE IDLER FOR 15 DAYS SHALL HAVE SURFACE STABUIZATION APPLIED. WHEN WEATHER CONDITIONS PREVENT RAPID GERMINATION OF GRASS, THEN 2T /AC MULCH WILL BE USED TO ENSURE GROUND STABILIZATION REQUIREMENTS ARE MET. TEMPORARY SEEDING Purpose To provide vegetative cover where permanent seeding is not desirable or practical. To reduce erosion and sedimentation damage by stabilizing disturbed areas. To reduce problems associated with mud or dust from unvegetated soil surfaces during construction. To reduce sediment -laden storm water runoff from being transported to downstream areas. To improve visual aesthetics of construction areas. Specifications Seedbed Preparation Grade and apply soil amendments. Seedin Frequency Seed rough graded areas daily while soil is still loose and moist. Density of Vegetative Cover Eighty percent or greater over the soil surface. Table 1 Seeding Specifications 100 LBS. /ACRE; 20 LBS. /ACRE 120 LBS./ACRE; 30 LBS. /ACRE 1 Perennial species may be used as a temporary cover, especially if the area to be seeded will remain idle for more than one year (see Permanent Seeding on page 35). 2 Seeding done outside the optimum seeding dates increases the chances of seeding failure. Dates may be extended or shortened based on the location of the project site within the state. Notes: Mulch alone is an acceptable temporary cover and may be used in lieu of temporary seeding, provided that it is appropriately anchored. A high potential for fertilizer, seed, and mulch to wash exists on steep banks, cuts, and in channels and areas of concentrated flow. Materials Soil Amendments Select materials and rates as determined by a soil test (contact your county soil and water conservation district or cooperative extension office for assistance and soil information, including available soil testing services) or 400 to 600 pounds of 12 -12 -12 analysis fertilizer, or equivalent. Consider the use of reduced phosphorus application where soil tests indicate adequate phosphorous levels in the soil profile. Seed Select appropriate plant species seed or seed mixtures on the basis of quick germination, growth, and time of year to be seeded (see Table 1). Mulch Straw, hay, wood fiber. etc. (to protect seedbed, retain moisture, and encourage plant growth). Anchored to prevent removal by wind or water or covered with manufactured erosion control blankets. TEMPORARY SEEDING NON WOVEN GEOTEXTILE FABRIC FILTER FABRIC EXTEND FABRIC WIRE TO 4" BELOW SURFACE SPACE POSTS PER .4 MANUFACTURER RECOMMENDATIONS 0 f 11 41 0 0 1 1 i Y FLOW WIRE WOOD POST N SILT FENCE CO \STRUCTIO\ NTS Purpose To trap sediment from small, disturbed areas by reducing the velocity of sheet flow. Silt fences capture sediment by ponding water to allow deposition, not by filtration. Note: Silt fence is not recommended for use as a diversion and should not be used across a stream, channel, ditch, swale, or anywhere that concentrated flow is anticipated. Drainage Area Limited to one quarter acre per 100 linear feet of fence. Further restricted by slope steepness (see Table 1). Effective Life Six months (maximum). Location Installed parallel to the slope contour. Minimum of 10 feet beyond the toe of the slope to provide a broad, shallow sediment pool. Accessible for maintenance (removal of sediment and silt fence repair). Specifications Spacing Table 1. Slope Steepness Restrictions 1 Consider other alternatives. Note: Multiple rows of silt fence are not recommended on the same slope. Trench Depth eight inches minimum. Width four inches minimum. After installing fence, backfill with soil material and compact (to bury and anchor the lower portion of the fence fabric). Note: An alternative to trenching is to use mechanical equipment to plow in the silt fence. Materials and Silt Fence Specifications Fabric woven or non -woven geotextile fabric meeting specified minimums outlined in Table 2. 2. Geotextile Fabric Specifications for Silt Fence (minimum) Note: Silt fences can be purchased commercially. Height a minimum of 18 inches above ground level (30 inches maximum). Reinforcement fabric securely fastened to posts with wood lathe. Support Posts 2 x 2 inch hardwood posts. Steel fence posts may be substituted for hardwood posts (steel posts should have projections for fastening fabric). Spacing Eight feet maximum if fence is supported by wire mesh fencing. Six feet maximum for extra strength fabric without wire backing. Installation Prefabricated silt fence NOTE: POSTS SHALL HAVE A MINIMUM LENGTH OF 36 INCHES PLUS BURIAL DEPTH. POST MATERIAL SHALL BE WOOD, STEEL, OR SYNTHETIC, AND SHALL BE OF SUFFICIENT STRENGTH TO RESIST DAMAGE DURING INSTALLATION AND TO SUPPORT APPLIED LOADS. FABRIC SHALL BE A WOVEN GEOTEXTILE FABRIC CONSISTING OF STRONG, ROT RESISTANT, MATERIALS RESISTANT TO DETERIORATION FROM ULTRAVIOLET AND HEAT EXPOSURE. STORM WATER POLLUTION PREVENTION PLAN 4oz. MINIMUM NON WOVEN GEOTEXTILE FABRIC. PART OF THE S.E. 1/4, SECTION 35, TOWNSHIP 18 NORTH, RANGE 3 EAST, CLAY TOWNSHIP, HAMILTON COUNTY, INDIANA PARCEL NO: 16- 09- 35- 00- 01- 035.002 DOCKET NO: 08120012 ADLS z cc PROFILE NTS PROVIDE APPROPRIATE TRANSITION BETWEEN STABILIZED CONSTRUCTION ENTRANCE AND EXISTING PAVEMENT. EXISTING GROUN PLAN VIEW EXISTING GROUND LINE. STABILIZED CONSTRUCTION ENTRANCE Purpose To provide ingress /egress to a construction site and minimize tracking of mud and sediment onto public roadways. Dimensions Width 20 feet minimum or full width of entrance /exit roadway, whichever is greater. Length 150 feet minimum (length can be shorter for small sites). Thickness eight inches minimum. Installation 1. Remove all vegetation and other objectionable material from the foundation area. 2. Grade foundation and crown for positive drainage. If the slope of the construction entrance is toward a public road and exceeds two percent, construct an eight inch high diversion ridge with a ratio of 3 -to -1 side slopes across the foundation area about 15 feet from the entrance to divert runoff away from the road (see Temporary Construction Ingress /Egress Pad Cross Section View Worksheet). 3. Install a culvert pipe under the pad if needed to maintain proper public road drainage. 4. If wet conditions are anticipated, place geotextile fabric on the graded foundation to improve stability. 5. Place aggregate (INDOT CA No. 2) to the dimensions and grade shown in the construction plans, leaving the surface smooth and sloped for drainage. 6. Top -dress the first 50 feet adjacent to the public roadway with two to three inches of washed aggregate (INDOT CA No. 53) [optional, used primarily where the purpose of the pad is to keep soil from adhering to vehicle tires]. 7. Where possible, divert all storm water runoff and drainage from the ingress /egress pad to a sediment trap or basin. Materials One to two and one -half inch diameter washed aggregate [Indiana Department of Transportation Course Aggregate No. 2 (see Appendix D)]. One -half to one and one -half inch diameter washed aggregate [INDOT CA No. 53 (see Appendix D)]. Geotextile fabric underlayment (see Appendix C) (used as a separation layer to prevent intermixing of aggregate and the underlying soil material and to provide greater bearing strength when encountering wet conditions or soils with a seasonal high water table limitation). Ma inspect daily. eshape pad as needed for drainage and runoff control. Top dress with clean aggregate as needed. immediately remove mud and sediment tracked or washed onto public roads. Flushing should only be used if the water can be conveyed into a sediment trap or basin. EXISTING PAVEMENT Purpose To capture sediment at the entrance to a storm drain inlet, allowing full use of the storm drain system during the construction period. Note: This measure is not recommended for paved surfaces due to inability to entrench the fabric and lack of an anchoring system. Note: Alternative support systems may be substituted for hardwood posts and cross braces. Contributing Drainage Area One acre maximum. Effective Life Six months (maximum). Capacity Runoff from a two -year frequency, 24 -hour storm event entering a storm drain without bypass flow. Geotextile Structure Height 12 to 18 inches, measured from top of storm drain inlet. Post spacing 36 -inch maximum spacing between posts. Frame support bracing to strengthen integrity of the structure. (Structure must withstand 12 -foot head of water and sediment without collapsing or undercutting.) GEOTEXTILE FABRIC DROP INLET PROTECTION Materials Support posts 2 x 2 inch or 2 x 4 inch hardwood posts. Three feet length, minimum. 1 x 2 inch or 1 x 3 inch hardwood cross bracing lumber. Lathe. Staples or nails. Geotextile fabric Table 1. Geotextile Fabric Specifications Installation 1. Dig an eight -inch deep, four -inch wide trench around the perimeter of the inlet. 2. If using pre assembled geotextile fabric and posts, drive the posts into the soil, tightly stretching the geotextile fabric between posts as each is driven. (Posts must be placed on the inlet side of the anchor trench with the geotextile fabric on the side of the trench farthest from the inlet.) Note: If assembling the geotextile fabric and posts on -site, drive the posts into the soil and then secure the geotextile fabric to the posts by placing a piece of lathe over the fabric and fastening it to the post (stretching the fabric between posts as it is fastened). 3. Use the wrap join method when joining posts. 4. Place the bottom 12 inches of geotextile fabric into the eight -inch deep trench, laying the remaining four inches in the bottom of the trench and extending away from the inlet. 5. Backfill the trench with soil material and compact it in place. 6. Brace the posts by nailing braces into each corner post or utilize rigid panels to support fabric. Note: In situations where storm water may bypass the structure, either: Set the top of the geotextile fabric filter at least six inches lower than the ground elevation on the down -slope side of the storm drain inlet, Build a temporary dike, compacted to six inches higher than the fabric, on the down -slope side of the storm drain inlet, AND /OR Use in conjunction with excavated drop inlet protection. 0 0 CO N c W 9- 0 0 0) N 0 N 0 w W 0) 0 N N 0 0 0 0 U- IL O 0 0 co O u7 O I- 0 z 0 z J W 0 N CO LI_ O N LO N M O CO 0 0 W LL m Z LL O o Q Z W Z Q f 0-z Q n 0(W z LLl z co D 0 W0 00 �0 0 I I- z Z Hai Q O U co 0 1- O z Q O 0- W N 0 For best results: (a) legume seed should be inoculated; (b) seeding mixtures containing legumes should preferably be spring- seeded, although the grass may be fail- seeded and the legume frost- seeded; and (c) if legumes are fall seeded, do so in early fall. 2 Tail fescue provides little cover for, and may be toxic; to some species of wildlife. The Indiana Department of Natural Resources recognizes the need for additional research on alternatives such as buffaiograss, orchardgrass, smooth bromegrass, and switchgrass. This research, in conjunction with demonstration areas, should focus on erosion control characteristics, wildlife toxicity, turf durability, and drought resistance. Notes: 1. An oat or wheat companion or nurse crop may be used with any of the above permanent seeding mixtures, at the following rates: (a) spring oats one fourth to three- fourths bushel per acre (b) wheal. no more than one -half bushel per acre 2. A high potential for fertilizer, seed, and ?Hutch to wash exists on steep banks, cuts, and in channels and areas of concentrated flow. Seedbed Preparation 1. Test soil to determine pH and nutrient levels. 2. Apply soil amendments as recommended by the soil test. If testing is not done, apply 400 to 600 pounds per acre of 12 -12 -12 analysis fertilizer, or equivalent. 3. Work the soil amendments into the upper two to four inches of the soil with a disk or rake operated across the slope. Seeding 1. Select a seed species or an appropriate seed mixture and application rate from Table 1. 2. Apply seed uniformly with a drill or cultipacker seeder or by broadcasting. Plant or cover seed to the depth shown in Table 1. 3. Inspect within 24 hours of each rain event and at least once every seven calendar days. 4. Check for erosion or movement of mulch and repair immediately. 5. Monitor for erosion damage and adequate cover (80 percent density); reseed, fertilize, and apply mulch where necessary. 6. If nitrogen deficiency is apparent. top -dress fall seeded wheat or rye seeding with 50 pounds per acre of nitrogen in February or March. Application Notes: 1. If drilling or broadcasting the seed, ensure good seed -to -soil contact by firming the seedbed with a roller or cultipacker after completing seeding operations. 2. Daily seeding when the soil is moist is usually most effective. 3. If seeding is done with a hydroseeder, fertilizer and mulch can be applied with the seed in a slurry mixture. 4. Apply mulch and anchor it in place. 1. Lay out the location of the fence so that it is parallel to the contour of the slope and at least 10 feet beyond the toe of the slope to provide a sediment storage area. Turn the ends of the fence up slope such that the point of contact between the ground and the bottom of the fence end terminates at a higher elevation than the top of the fence at its lowest point (see Exhibit 1). 2. Excavate an eight -inch deep by four -inch wide trench along the entire length of the fence line (see Exhibit 2). Installation by plowing is also acceptable. 3. Install the silt fence with the filter fabric located on the up -slope side of the excavated trench and the support posts on the down -slope side of the trench. 4. Drive the support posts at least 18 inches into the ground, tightly stretching the fabric between the posts as each is driven into the soil. A minimum of 12 inches of the filter fabric should extend into the trench. If it is necessary t join the ends of two fences, use the wrap joint method shown in Exhibit 3.) 5. Lay the lower four inches of filter fabric on the bottom of the trench and extend it toward the up -slope side of the trench. 6. Backfill the trench with soil material and compact it in place. Note: If the silt fence is being constructed on -site, attach the filter fabric to the support posts (refer to Tables 1 and 2 for spacing and geotextile specifications) and attach wooden lathe to secure the fabric to the posts. Allow for at least 12 inches of fabric below ground level. Complete the silt fence installation, following steps 1 through 6 above. Maintenance Inspect within 24 hours of a rain event and at least once every seven calendar days. If fence fabric tears, starts to decompose, or in any way becomes ineffective, replace the affected portion immediately. Note: All repairs should meet specifications as outlined within this measure. Remove deposited sediment when it is causing the filter fabric to bulge or when it reaches one -half the height of the fence at its lowest point. When contributing drainage area has been stabilized, remove the fence and sediment deposits, grade the site to blend with the surrounding area, and stabilize. NOT FOR CONSTRUCTION APPROVAL PENDING P.E. No. 10708654 DATE: Maintenance Inspect daily. nspect geotextile fabric and make needed repairs immediately. Remove sediment from pool area to provide storage for the next storm event. Avoid damaging or undercutting fabric during sediment removal. When contributing drainage area has been stabilized, remove sediment, properly dispose of all construction material, grade area to the elevation of the storm drain inlet top, then stabilize immediately. %t\llil1 i t M Tlit, .�`C' _ma .f.s. No. 107086541 s STATE OF I L I 4„ �V ENO I ANp, `,,'C O-- LS2050017 O '9� LS20500017 -5/ ND I �,o 11 19 -08 STATE OF DATE: Percent Slope Maximum Distance <2% <50:1 100 feet 2% 5% 50:1 to 20:1 75 feet 5% 10 %(1) 20:1 to 10:1 50 feet 10% 20 %(1) 10:1 to 5:1 25 feet 20 %(1) 5:1 15 feet PERMANENT SEED NG Purpose 't o provide permanent vegetative cover and improve visual aesthetics of a project site. To reduce erosion and sedimentation damage by stabilizing disturbed areas. To reduce problems associated with mud or dust from unvegetated soil surfaces. To reduce sediment -laden storm water runoff from being transported to downstream areas, Seedbed Pre ratio Grade and apply soil amendments. Seeding Frequency Seed final graded areas daily while soil is still loose and moist, Densi of Vegetative Cover Ninety percent or greater over the soil surface. Materials Soil Amendments Select materials and rates as determined by a soil test (contact your County soil and water conservation district or cooperative extension office for assistance and soil information, including available soil testing services) or 400 to 600 pounds of 12- 12-12 analysis fertilizer, or equivalent. Consider the use of reduced phosphorus application where soil tests indicate adequate phosphorous levels in the soil prole. Seed Select an appropriate plant species seed or seed mixture on the basis of soil type, soil pH, region of the state, time of year, and intended land use of the area to be seeded (see Table 1). Mulch Straw, hay, wood fiber, etc. (to protect seedbed, retain moisture, and encourage plant growth). Anchored to prevent removal by wind or water or covered with premanufactured erosion control blankets. Site Preparation 1. Grade the site to achieve positive drainage. 2. Add topsoil or compost mulch to achieve needed depth for establishment of vegetation. (Compost material may be added to improve soil moisture holding capacity, soil friability, and nutrient availability.) See dbed Preparation 1. Test soil to determine pH and nutrient levels. 2. Apply soil amendments as recommended by the soil test and work into the upper two to four inches of soil. If testing is not done, apply 400 to 600 pounds per acre of 12 -12 -12 analysis fertilizer, or equivalent. 3. Till the soil to obtain a uniform seedbed. Use a disk or rake, operated across the slope, to work the soil amendments into the upper two to four inches of the soil. Seed Optimum seeding dates are March 1 to May 10 and August 10 to September 30. Permanent seeding done between May 10 and August 10 may need to be irrigated. Seeding outside or beyond optimum seeding dates is still possible with the understanding that reseeding or overseeding may be required if adequate surface cover is not achieved. Reseeding or overseeding can be easily accomplished if the soil surface remains well protected with mulch. 1. Select a seeding mixture and rate from Table 1. Select seed mixture based on site conditions, soil pH, intended land use, and expected level of maintenance. 2. Apply seed uniformly with a drill or cultipacker seeder (see Figure 1) or by broadcasting (see Figure 2). Plant or cover the seed to a depth of one fourth to one -half inch. If drilling or broadcasting the seed, ensure good seed -to -soil contact by firming the seedbed with a roller or cultipacker after completing seeding operations. (If seeding is done with a hydroseeder (see Figure 3), fertilizer and mulch can be applied with the seed in a slurry mixture.) 3. Mulch all seeded areas and use appropriate methods to anchor the mulch in place. Consider using erosion control blankets on sloping areas and conveyance channels. Maintenance Inspect within 24 hours of each rain event and at least once every seven calendar days until the vegetation is successfully established. Characteristics of a successful stand include vigorous dark green or bluishgreen seedlings with a uniform vegetative cover density of 90 percent or more. Check. for erosion or movement of mulch. Repair damaged, bare, gullied, or sparsely vegetated areas and then fertilize, reseed, and apply and anchor mulch. If plant cover is sparse or patchy, evaluate the plant materials chosen, soil fertility, moisture condition, and mulch application; repair affected areas either by overseeding or preparing a new seedbed and reseeding. Apply and anchor mulch on the newly seeded areas. If vegetation fails to grow, consider soil testing to determine soil pH or nutrient deficiency problems. (Contact your soil and water conservation district or cooperative extension office for assistance.) If additional fertilization is needed to get a satisfactory stand, do so according to soil test recommendations. Add fertilizer the following growing season. Fertilize according to soil test recommendations. Fertilize turf areas annually, Apply fertilizer in a split application. For cool season grasses, apply one -half of the fertilizer in late spring and onehalf in early fall. For warm season grasses, apply one -third in early spring, one -third in late spring, and the remaining one -third in middle summer. PERMANENT SEEDING Table 1. Permanent Seeding Recommendations This table provides several seed mixture options. Additional seed mixtures are available commercially. When selecting a mixture, consider intended and use and site conditions, including soil properties (e.g., soil pH and drainage), slope aspect, and the tolerance of each species to shade and drought. Maintenance Areas (remainin idle more than six months) Maint e nance Areas not mowed d Flow A KENTUCKY BLUEGRASS 100 LBS. /ACRE; CREEPING RED FESCUE PLUS 2 TONS STRAW MULCH /ACRE, OR ADD ANNUAL RYEGRASS B KENTUCKY BLUEGRASS 120 LBS. /ACRE; CREEPING RED FESCUE PLUS 2 TONS STRAW MULCH /ACRE, OR ADD ANNUAL RYEGRASS C SPRING OATS 3 BUSHELS /ACRE D WHEAT OR RYE 2 BUSHELS /ACRE E ANNUAL RYEGRASS 40 LBS. /ACRE 1 LB /1000 SQ. FT. F SOD G STRAW MULCH 2 TONS /ACRE /I IRRIGATION NEEDED DURING JUNE, JULY, AUGUST AND /OR SEPTEMBER IRRIGATION NEEDED FOR 2 TO 3 WEEKS AFTER SUPPLYING SOD SEEDBED PREPARATION FOR PERMANENT SEEDING: 1.TEST SOIL TO DETERMINE pH AND NUTREINT LEVELS. (CONTACT COUNTY SWCD OR COOPERATIVE EXTENSION OFFICE FOR ASSISTANCE AND SOILS INFORMATION, INCLUDING AVAILABLE TESTING SERVICES.) 2. IF SOIL pH IS UNSUITABLE FOR THE SPECIES TO BE SEEDED, APPLY LIME ACCORDING TO TEST RECOMMENDATIONS. 3. FERTILIZE AS RECOMMENDED BY THE SOIL TEST. IF TESTING WAS NOT DONE, CONSIDER APPLYING 400 -600 lbs/ACRE OF 12 -12 -12 ANALSIS, OR EQUIVALENT, FERTILIZER. 4. TILL TOP SOIL TO OBTAIN A UNIFORM SEEDBED, WORKING THE FERTILIZER AND LINE INTO THE SOIL 2 -4 INCHES DEEP WITH A DISK OR A RAKE OPERATED ACROSS THE SLOPE. RULE 5 REQUIRES ALL DISTURBED AREAS LIKELY TO BE IDLER FOR 15 DAYS SHALL HAVE SURFACE STABUIZATION APPLIED. WHEN WEATHER CONDITIONS PREVENT RAPID GERMINATION OF GRASS, THEN 2T /AC MULCH WILL BE USED TO ENSURE GROUND STABILIZATION REQUIREMENTS ARE MET. TEMPORARY SEEDING Purpose To provide vegetative cover where permanent seeding is not desirable or practical. To reduce erosion and sedimentation damage by stabilizing disturbed areas. To reduce problems associated with mud or dust from unvegetated soil surfaces during construction. To reduce sediment -laden storm water runoff from being transported to downstream areas. To improve visual aesthetics of construction areas. Specifications Seedbed Preparation Grade and apply soil amendments. Seedin Frequency Seed rough graded areas daily while soil is still loose and moist. Density of Vegetative Cover Eighty percent or greater over the soil surface. Table 1 Seeding Specifications 100 LBS. /ACRE; 20 LBS. /ACRE 120 LBS./ACRE; 30 LBS. /ACRE 1 Perennial species may be used as a temporary cover, especially if the area to be seeded will remain idle for more than one year (see Permanent Seeding on page 35). 2 Seeding done outside the optimum seeding dates increases the chances of seeding failure. Dates may be extended or shortened based on the location of the project site within the state. Notes: Mulch alone is an acceptable temporary cover and may be used in lieu of temporary seeding, provided that it is appropriately anchored. A high potential for fertilizer, seed, and mulch to wash exists on steep banks, cuts, and in channels and areas of concentrated flow. Materials Soil Amendments Select materials and rates as determined by a soil test (contact your county soil and water conservation district or cooperative extension office for assistance and soil information, including available soil testing services) or 400 to 600 pounds of 12 -12 -12 analysis fertilizer, or equivalent. Consider the use of reduced phosphorus application where soil tests indicate adequate phosphorous levels in the soil profile. Seed Select appropriate plant species seed or seed mixtures on the basis of quick germination, growth, and time of year to be seeded (see Table 1). Mulch Straw, hay, wood fiber. etc. (to protect seedbed, retain moisture, and encourage plant growth). Anchored to prevent removal by wind or water or covered with manufactured erosion control blankets. TEMPORARY SEEDING NON WOVEN GEOTEXTILE FABRIC FILTER FABRIC EXTEND FABRIC WIRE TO 4" BELOW SURFACE SPACE POSTS PER .4 MANUFACTURER RECOMMENDATIONS 0 f 11 41 0 0 1 1 i Y FLOW WIRE WOOD POST N SILT FENCE CO \STRUCTIO\ NTS Purpose To trap sediment from small, disturbed areas by reducing the velocity of sheet flow. Silt fences capture sediment by ponding water to allow deposition, not by filtration. Note: Silt fence is not recommended for use as a diversion and should not be used across a stream, channel, ditch, swale, or anywhere that concentrated flow is anticipated. Drainage Area Limited to one quarter acre per 100 linear feet of fence. Further restricted by slope steepness (see Table 1). Effective Life Six months (maximum). Location Installed parallel to the slope contour. Minimum of 10 feet beyond the toe of the slope to provide a broad, shallow sediment pool. Accessible for maintenance (removal of sediment and silt fence repair). Specifications Spacing Table 1. Slope Steepness Restrictions 1 Consider other alternatives. Note: Multiple rows of silt fence are not recommended on the same slope. Trench Depth eight inches minimum. Width four inches minimum. After installing fence, backfill with soil material and compact (to bury and anchor the lower portion of the fence fabric). Note: An alternative to trenching is to use mechanical equipment to plow in the silt fence. Materials and Silt Fence Specifications Fabric woven or non -woven geotextile fabric meeting specified minimums outlined in Table 2. 2. Geotextile Fabric Specifications for Silt Fence (minimum) Note: Silt fences can be purchased commercially. Height a minimum of 18 inches above ground level (30 inches maximum). Reinforcement fabric securely fastened to posts with wood lathe. Support Posts 2 x 2 inch hardwood posts. Steel fence posts may be substituted for hardwood posts (steel posts should have projections for fastening fabric). Spacing Eight feet maximum if fence is supported by wire mesh fencing. Six feet maximum for extra strength fabric without wire backing. Installation Prefabricated silt fence NOTE: POSTS SHALL HAVE A MINIMUM LENGTH OF 36 INCHES PLUS BURIAL DEPTH. POST MATERIAL SHALL BE WOOD, STEEL, OR SYNTHETIC, AND SHALL BE OF SUFFICIENT STRENGTH TO RESIST DAMAGE DURING INSTALLATION AND TO SUPPORT APPLIED LOADS. FABRIC SHALL BE A WOVEN GEOTEXTILE FABRIC CONSISTING OF STRONG, ROT RESISTANT, MATERIALS RESISTANT TO DETERIORATION FROM ULTRAVIOLET AND HEAT EXPOSURE. STORM WATER POLLUTION PREVENTION PLAN 4oz. MINIMUM NON WOVEN GEOTEXTILE FABRIC. PART OF THE S.E. 1/4, SECTION 35, TOWNSHIP 18 NORTH, RANGE 3 EAST, CLAY TOWNSHIP, HAMILTON COUNTY, INDIANA PARCEL NO: 16- 09- 35- 00- 01- 035.002 DOCKET NO: 08120012 ADLS z cc PROFILE NTS PROVIDE APPROPRIATE TRANSITION BETWEEN STABILIZED CONSTRUCTION ENTRANCE AND EXISTING PAVEMENT. EXISTING GROUN PLAN VIEW EXISTING GROUND LINE. STABILIZED CONSTRUCTION ENTRANCE Purpose To provide ingress /egress to a construction site and minimize tracking of mud and sediment onto public roadways. Dimensions Width 20 feet minimum or full width of entrance /exit roadway, whichever is greater. Length 150 feet minimum (length can be shorter for small sites). Thickness eight inches minimum. Installation 1. Remove all vegetation and other objectionable material from the foundation area. 2. Grade foundation and crown for positive drainage. If the slope of the construction entrance is toward a public road and exceeds two percent, construct an eight inch high diversion ridge with a ratio of 3 -to -1 side slopes across the foundation area about 15 feet from the entrance to divert runoff away from the road (see Temporary Construction Ingress /Egress Pad Cross Section View Worksheet). 3. Install a culvert pipe under the pad if needed to maintain proper public road drainage. 4. If wet conditions are anticipated, place geotextile fabric on the graded foundation to improve stability. 5. Place aggregate (INDOT CA No. 2) to the dimensions and grade shown in the construction plans, leaving the surface smooth and sloped for drainage. 6. Top -dress the first 50 feet adjacent to the public roadway with two to three inches of washed aggregate (INDOT CA No. 53) [optional, used primarily where the purpose of the pad is to keep soil from adhering to vehicle tires]. 7. Where possible, divert all storm water runoff and drainage from the ingress /egress pad to a sediment trap or basin. Materials One to two and one -half inch diameter washed aggregate [Indiana Department of Transportation Course Aggregate No. 2 (see Appendix D)]. One -half to one and one -half inch diameter washed aggregate [INDOT CA No. 53 (see Appendix D)]. Geotextile fabric underlayment (see Appendix C) (used as a separation layer to prevent intermixing of aggregate and the underlying soil material and to provide greater bearing strength when encountering wet conditions or soils with a seasonal high water table limitation). Ma inspect daily. eshape pad as needed for drainage and runoff control. Top dress with clean aggregate as needed. immediately remove mud and sediment tracked or washed onto public roads. Flushing should only be used if the water can be conveyed into a sediment trap or basin. EXISTING PAVEMENT Purpose To capture sediment at the entrance to a storm drain inlet, allowing full use of the storm drain system during the construction period. Note: This measure is not recommended for paved surfaces due to inability to entrench the fabric and lack of an anchoring system. Note: Alternative support systems may be substituted for hardwood posts and cross braces. Contributing Drainage Area One acre maximum. Effective Life Six months (maximum). Capacity Runoff from a two -year frequency, 24 -hour storm event entering a storm drain without bypass flow. Geotextile Structure Height 12 to 18 inches, measured from top of storm drain inlet. Post spacing 36 -inch maximum spacing between posts. Frame support bracing to strengthen integrity of the structure. (Structure must withstand 12 -foot head of water and sediment without collapsing or undercutting.) GEOTEXTILE FABRIC DROP INLET PROTECTION Materials Support posts 2 x 2 inch or 2 x 4 inch hardwood posts. Three feet length, minimum. 1 x 2 inch or 1 x 3 inch hardwood cross bracing lumber. Lathe. Staples or nails. Geotextile fabric Table 1. Geotextile Fabric Specifications Installation 1. Dig an eight -inch deep, four -inch wide trench around the perimeter of the inlet. 2. If using pre assembled geotextile fabric and posts, drive the posts into the soil, tightly stretching the geotextile fabric between posts as each is driven. (Posts must be placed on the inlet side of the anchor trench with the geotextile fabric on the side of the trench farthest from the inlet.) Note: If assembling the geotextile fabric and posts on -site, drive the posts into the soil and then secure the geotextile fabric to the posts by placing a piece of lathe over the fabric and fastening it to the post (stretching the fabric between posts as it is fastened). 3. Use the wrap join method when joining posts. 4. Place the bottom 12 inches of geotextile fabric into the eight -inch deep trench, laying the remaining four inches in the bottom of the trench and extending away from the inlet. 5. Backfill the trench with soil material and compact it in place. 6. Brace the posts by nailing braces into each corner post or utilize rigid panels to support fabric. Note: In situations where storm water may bypass the structure, either: Set the top of the geotextile fabric filter at least six inches lower than the ground elevation on the down -slope side of the storm drain inlet, Build a temporary dike, compacted to six inches higher than the fabric, on the down -slope side of the storm drain inlet, AND /OR Use in conjunction with excavated drop inlet protection. 0 0 CO N c W 9- 0 0 0) N 0 N 0 w W 0) 0 N N 0 0 0 0 U- IL O 0 0 co O u7 O I- 0 z 0 z J W 0 N CO LI_ O N LO N M O CO 0 0 W LL m Z LL O o Q Z W Z Q f 0-z Q n 0(W z LLl z co D 0 W0 00 �0 0 I I- z Z Hai Q O U co 0 1- O z Q O 0- W N 0 For best results: (a) legume seed should be inoculated; (b) seeding mixtures containing legumes should preferably be spring- seeded, although the grass may be fail- seeded and the legume frost- seeded; and (c) if legumes are fall seeded, do so in early fall. 2 Tail fescue provides little cover for, and may be toxic; to some species of wildlife. The Indiana Department of Natural Resources recognizes the need for additional research on alternatives such as buffaiograss, orchardgrass, smooth bromegrass, and switchgrass. This research, in conjunction with demonstration areas, should focus on erosion control characteristics, wildlife toxicity, turf durability, and drought resistance. Notes: 1. An oat or wheat companion or nurse crop may be used with any of the above permanent seeding mixtures, at the following rates: (a) spring oats one fourth to three- fourths bushel per acre (b) wheal. no more than one -half bushel per acre 2. A high potential for fertilizer, seed, and ?Hutch to wash exists on steep banks, cuts, and in channels and areas of concentrated flow. Seedbed Preparation 1. Test soil to determine pH and nutrient levels. 2. Apply soil amendments as recommended by the soil test. If testing is not done, apply 400 to 600 pounds per acre of 12 -12 -12 analysis fertilizer, or equivalent. 3. Work the soil amendments into the upper two to four inches of the soil with a disk or rake operated across the slope. Seeding 1. Select a seed species or an appropriate seed mixture and application rate from Table 1. 2. Apply seed uniformly with a drill or cultipacker seeder or by broadcasting. Plant or cover seed to the depth shown in Table 1. 3. Inspect within 24 hours of each rain event and at least once every seven calendar days. 4. Check for erosion or movement of mulch and repair immediately. 5. Monitor for erosion damage and adequate cover (80 percent density); reseed, fertilize, and apply mulch where necessary. 6. If nitrogen deficiency is apparent. top -dress fall seeded wheat or rye seeding with 50 pounds per acre of nitrogen in February or March. Application Notes: 1. If drilling or broadcasting the seed, ensure good seed -to -soil contact by firming the seedbed with a roller or cultipacker after completing seeding operations. 2. Daily seeding when the soil is moist is usually most effective. 3. If seeding is done with a hydroseeder, fertilizer and mulch can be applied with the seed in a slurry mixture. 4. Apply mulch and anchor it in place. 1. Lay out the location of the fence so that it is parallel to the contour of the slope and at least 10 feet beyond the toe of the slope to provide a sediment storage area. Turn the ends of the fence up slope such that the point of contact between the ground and the bottom of the fence end terminates at a higher elevation than the top of the fence at its lowest point (see Exhibit 1). 2. Excavate an eight -inch deep by four -inch wide trench along the entire length of the fence line (see Exhibit 2). Installation by plowing is also acceptable. 3. Install the silt fence with the filter fabric located on the up -slope side of the excavated trench and the support posts on the down -slope side of the trench. 4. Drive the support posts at least 18 inches into the ground, tightly stretching the fabric between the posts as each is driven into the soil. A minimum of 12 inches of the filter fabric should extend into the trench. If it is necessary t join the ends of two fences, use the wrap joint method shown in Exhibit 3.) 5. Lay the lower four inches of filter fabric on the bottom of the trench and extend it toward the up -slope side of the trench. 6. Backfill the trench with soil material and compact it in place. Note: If the silt fence is being constructed on -site, attach the filter fabric to the support posts (refer to Tables 1 and 2 for spacing and geotextile specifications) and attach wooden lathe to secure the fabric to the posts. Allow for at least 12 inches of fabric below ground level. Complete the silt fence installation, following steps 1 through 6 above. Maintenance Inspect within 24 hours of a rain event and at least once every seven calendar days. If fence fabric tears, starts to decompose, or in any way becomes ineffective, replace the affected portion immediately. Note: All repairs should meet specifications as outlined within this measure. Remove deposited sediment when it is causing the filter fabric to bulge or when it reaches one -half the height of the fence at its lowest point. When contributing drainage area has been stabilized, remove the fence and sediment deposits, grade the site to blend with the surrounding area, and stabilize. NOT FOR CONSTRUCTION APPROVAL PENDING P.E. No. 10708654 DATE: Maintenance Inspect daily. nspect geotextile fabric and make needed repairs immediately. Remove sediment from pool area to provide storage for the next storm event. Avoid damaging or undercutting fabric during sediment removal. When contributing drainage area has been stabilized, remove sediment, properly dispose of all construction material, grade area to the elevation of the storm drain inlet top, then stabilize immediately. %t\llil1 i t M Tlit, .�`C' _ma .f.s. No. 107086541 s STATE OF I L I 4„ �V ENO I ANp, `,,'C O-- LS2050017 O '9� LS20500017 -5/ ND I �,o 11 19 -08 STATE OF DATE: PERMANENT SEED NG Purpose 't o provide permanent vegetative cover and improve visual aesthetics of a project site. To reduce erosion and sedimentation damage by stabilizing disturbed areas. To reduce problems associated with mud or dust from unvegetated soil surfaces. To reduce sediment -laden storm water runoff from being transported to downstream areas, Seedbed Pre ratio Grade and apply soil amendments. Seeding Frequency Seed final graded areas daily while soil is still loose and moist, Densi of Vegetative Cover Ninety percent or greater over the soil surface. Materials Soil Amendments Select materials and rates as determined by a soil test (contact your County soil and water conservation district or cooperative extension office for assistance and soil information, including available soil testing services) or 400 to 600 pounds of 12- 12-12 analysis fertilizer, or equivalent. Consider the use of reduced phosphorus application where soil tests indicate adequate phosphorous levels in the soil prole. Seed Select an appropriate plant species seed or seed mixture on the basis of soil type, soil pH, region of the state, time of year, and intended land use of the area to be seeded (see Table 1). Mulch Straw, hay, wood fiber, etc. (to protect seedbed, retain moisture, and encourage plant growth). Anchored to prevent removal by wind or water or covered with premanufactured erosion control blankets. Site Preparation 1. Grade the site to achieve positive drainage. 2. Add topsoil or compost mulch to achieve needed depth for establishment of vegetation. (Compost material may be added to improve soil moisture holding capacity, soil friability, and nutrient availability.) See dbed Preparation 1. Test soil to determine pH and nutrient levels. 2. Apply soil amendments as recommended by the soil test and work into the upper two to four inches of soil. If testing is not done, apply 400 to 600 pounds per acre of 12 -12 -12 analysis fertilizer, or equivalent. 3. Till the soil to obtain a uniform seedbed. Use a disk or rake, operated across the slope, to work the soil amendments into the upper two to four inches of the soil. Seed Optimum seeding dates are March 1 to May 10 and August 10 to September 30. Permanent seeding done between May 10 and August 10 may need to be irrigated. Seeding outside or beyond optimum seeding dates is still possible with the understanding that reseeding or overseeding may be required if adequate surface cover is not achieved. Reseeding or overseeding can be easily accomplished if the soil surface remains well protected with mulch. 1. Select a seeding mixture and rate from Table 1. Select seed mixture based on site conditions, soil pH, intended land use, and expected level of maintenance. 2. Apply seed uniformly with a drill or cultipacker seeder (see Figure 1) or by broadcasting (see Figure 2). Plant or cover the seed to a depth of one fourth to one -half inch. If drilling or broadcasting the seed, ensure good seed -to -soil contact by firming the seedbed with a roller or cultipacker after completing seeding operations. (If seeding is done with a hydroseeder (see Figure 3), fertilizer and mulch can be applied with the seed in a slurry mixture.) 3. Mulch all seeded areas and use appropriate methods to anchor the mulch in place. Consider using erosion control blankets on sloping areas and conveyance channels. Maintenance Inspect within 24 hours of each rain event and at least once every seven calendar days until the vegetation is successfully established. Characteristics of a successful stand include vigorous dark green or bluishgreen seedlings with a uniform vegetative cover density of 90 percent or more. Check. for erosion or movement of mulch. Repair damaged, bare, gullied, or sparsely vegetated areas and then fertilize, reseed, and apply and anchor mulch. If plant cover is sparse or patchy, evaluate the plant materials chosen, soil fertility, moisture condition, and mulch application; repair affected areas either by overseeding or preparing a new seedbed and reseeding. Apply and anchor mulch on the newly seeded areas. If vegetation fails to grow, consider soil testing to determine soil pH or nutrient deficiency problems. (Contact your soil and water conservation district or cooperative extension office for assistance.) If additional fertilization is needed to get a satisfactory stand, do so according to soil test recommendations. Add fertilizer the following growing season. Fertilize according to soil test recommendations. Fertilize turf areas annually, Apply fertilizer in a split application. For cool season grasses, apply one -half of the fertilizer in late spring and onehalf in early fall. For warm season grasses, apply one -third in early spring, one -third in late spring, and the remaining one -third in middle summer. PERMANENT SEEDING Table 1. Permanent Seeding Recommendations This table provides several seed mixture options. Additional seed mixtures are available commercially. When selecting a mixture, consider intended and use and site conditions, including soil properties (e.g., soil pH and drainage), slope aspect, and the tolerance of each species to shade and drought. Maintenance Areas (remainin idle more than six months) Maint e nance Areas not mowed d Flow A KENTUCKY BLUEGRASS 100 LBS. /ACRE; CREEPING RED FESCUE PLUS 2 TONS STRAW MULCH /ACRE, OR ADD ANNUAL RYEGRASS B KENTUCKY BLUEGRASS 120 LBS. /ACRE; CREEPING RED FESCUE PLUS 2 TONS STRAW MULCH /ACRE, OR ADD ANNUAL RYEGRASS C SPRING OATS 3 BUSHELS /ACRE D WHEAT OR RYE 2 BUSHELS /ACRE E ANNUAL RYEGRASS 40 LBS. /ACRE 1 LB /1000 SQ. FT. F SOD G STRAW MULCH 2 TONS /ACRE /I IRRIGATION NEEDED DURING JUNE, JULY, AUGUST AND /OR SEPTEMBER IRRIGATION NEEDED FOR 2 TO 3 WEEKS AFTER SUPPLYING SOD SEEDBED PREPARATION FOR PERMANENT SEEDING: 1.TEST SOIL TO DETERMINE pH AND NUTREINT LEVELS. (CONTACT COUNTY SWCD OR COOPERATIVE EXTENSION OFFICE FOR ASSISTANCE AND SOILS INFORMATION, INCLUDING AVAILABLE TESTING SERVICES.) 2. IF SOIL pH IS UNSUITABLE FOR THE SPECIES TO BE SEEDED, APPLY LIME ACCORDING TO TEST RECOMMENDATIONS. 3. FERTILIZE AS RECOMMENDED BY THE SOIL TEST. IF TESTING WAS NOT DONE, CONSIDER APPLYING 400 -600 lbs/ACRE OF 12 -12 -12 ANALSIS, OR EQUIVALENT, FERTILIZER. 4. TILL TOP SOIL TO OBTAIN A UNIFORM SEEDBED, WORKING THE FERTILIZER AND LINE INTO THE SOIL 2 -4 INCHES DEEP WITH A DISK OR A RAKE OPERATED ACROSS THE SLOPE. RULE 5 REQUIRES ALL DISTURBED AREAS LIKELY TO BE IDLER FOR 15 DAYS SHALL HAVE SURFACE STABUIZATION APPLIED. WHEN WEATHER CONDITIONS PREVENT RAPID GERMINATION OF GRASS, THEN 2T /AC MULCH WILL BE USED TO ENSURE GROUND STABILIZATION REQUIREMENTS ARE MET. TEMPORARY SEEDING Purpose To provide vegetative cover where permanent seeding is not desirable or practical. To reduce erosion and sedimentation damage by stabilizing disturbed areas. To reduce problems associated with mud or dust from unvegetated soil surfaces during construction. To reduce sediment -laden storm water runoff from being transported to downstream areas. To improve visual aesthetics of construction areas. Specifications Seedbed Preparation Grade and apply soil amendments. Seedin Frequency Seed rough graded areas daily while soil is still loose and moist. Density of Vegetative Cover Eighty percent or greater over the soil surface. Table 1 Seeding Specifications 100 LBS. /ACRE; 20 LBS. /ACRE 120 LBS./ACRE; 30 LBS. /ACRE 1 Perennial species may be used as a temporary cover, especially if the area to be seeded will remain idle for more than one year (see Permanent Seeding on page 35). 2 Seeding done outside the optimum seeding dates increases the chances of seeding failure. Dates may be extended or shortened based on the location of the project site within the state. Notes: Mulch alone is an acceptable temporary cover and may be used in lieu of temporary seeding, provided that it is appropriately anchored. A high potential for fertilizer, seed, and mulch to wash exists on steep banks, cuts, and in channels and areas of concentrated flow. Materials Soil Amendments Select materials and rates as determined by a soil test (contact your county soil and water conservation district or cooperative extension office for assistance and soil information, including available soil testing services) or 400 to 600 pounds of 12 -12 -12 analysis fertilizer, or equivalent. Consider the use of reduced phosphorus application where soil tests indicate adequate phosphorous levels in the soil profile. Seed Select appropriate plant species seed or seed mixtures on the basis of quick germination, growth, and time of year to be seeded (see Table 1). Mulch Straw, hay, wood fiber. etc. (to protect seedbed, retain moisture, and encourage plant growth). Anchored to prevent removal by wind or water or covered with manufactured erosion control blankets. TEMPORARY SEEDING NON WOVEN GEOTEXTILE FABRIC FILTER FABRIC EXTEND FABRIC WIRE TO 4" BELOW SURFACE SPACE POSTS PER .4 MANUFACTURER RECOMMENDATIONS 0 f 11 41 0 0 1 1 i Y FLOW WIRE WOOD POST N SILT FENCE CO \STRUCTIO\ NTS Purpose To trap sediment from small, disturbed areas by reducing the velocity of sheet flow. Silt fences capture sediment by ponding water to allow deposition, not by filtration. Note: Silt fence is not recommended for use as a diversion and should not be used across a stream, channel, ditch, swale, or anywhere that concentrated flow is anticipated. Drainage Area Limited to one quarter acre per 100 linear feet of fence. Further restricted by slope steepness (see Table 1). Effective Life Six months (maximum). Location Installed parallel to the slope contour. Minimum of 10 feet beyond the toe of the slope to provide a broad, shallow sediment pool. Accessible for maintenance (removal of sediment and silt fence repair). Specifications Spacing Table 1. Slope Steepness Restrictions 1 Consider other alternatives. Note: Multiple rows of silt fence are not recommended on the same slope. Trench Depth eight inches minimum. Width four inches minimum. After installing fence, backfill with soil material and compact (to bury and anchor the lower portion of the fence fabric). Note: An alternative to trenching is to use mechanical equipment to plow in the silt fence. Materials and Silt Fence Specifications Fabric woven or non -woven geotextile fabric meeting specified minimums outlined in Table 2. 2. Geotextile Fabric Specifications for Silt Fence (minimum) Note: Silt fences can be purchased commercially. Height a minimum of 18 inches above ground level (30 inches maximum). Reinforcement fabric securely fastened to posts with wood lathe. Support Posts 2 x 2 inch hardwood posts. Steel fence posts may be substituted for hardwood posts (steel posts should have projections for fastening fabric). Spacing Eight feet maximum if fence is supported by wire mesh fencing. Six feet maximum for extra strength fabric without wire backing. Installation Prefabricated silt fence NOTE: POSTS SHALL HAVE A MINIMUM LENGTH OF 36 INCHES PLUS BURIAL DEPTH. POST MATERIAL SHALL BE WOOD, STEEL, OR SYNTHETIC, AND SHALL BE OF SUFFICIENT STRENGTH TO RESIST DAMAGE DURING INSTALLATION AND TO SUPPORT APPLIED LOADS. FABRIC SHALL BE A WOVEN GEOTEXTILE FABRIC CONSISTING OF STRONG, ROT RESISTANT, MATERIALS RESISTANT TO DETERIORATION FROM ULTRAVIOLET AND HEAT EXPOSURE. STORM WATER POLLUTION PREVENTION PLAN 4oz. MINIMUM NON WOVEN GEOTEXTILE FABRIC. PART OF THE S.E. 1/4, SECTION 35, TOWNSHIP 18 NORTH, RANGE 3 EAST, CLAY TOWNSHIP, HAMILTON COUNTY, INDIANA PARCEL NO: 16- 09- 35- 00- 01- 035.002 DOCKET NO: 08120012 ADLS z cc PROFILE NTS PROVIDE APPROPRIATE TRANSITION BETWEEN STABILIZED CONSTRUCTION ENTRANCE AND EXISTING PAVEMENT. EXISTING GROUN PLAN VIEW EXISTING GROUND LINE. STABILIZED CONSTRUCTION ENTRANCE Purpose To provide ingress /egress to a construction site and minimize tracking of mud and sediment onto public roadways. Dimensions Width 20 feet minimum or full width of entrance /exit roadway, whichever is greater. Length 150 feet minimum (length can be shorter for small sites). Thickness eight inches minimum. Installation 1. Remove all vegetation and other objectionable material from the foundation area. 2. Grade foundation and crown for positive drainage. If the slope of the construction entrance is toward a public road and exceeds two percent, construct an eight inch high diversion ridge with a ratio of 3 -to -1 side slopes across the foundation area about 15 feet from the entrance to divert runoff away from the road (see Temporary Construction Ingress /Egress Pad Cross Section View Worksheet). 3. Install a culvert pipe under the pad if needed to maintain proper public road drainage. 4. If wet conditions are anticipated, place geotextile fabric on the graded foundation to improve stability. 5. Place aggregate (INDOT CA No. 2) to the dimensions and grade shown in the construction plans, leaving the surface smooth and sloped for drainage. 6. Top -dress the first 50 feet adjacent to the public roadway with two to three inches of washed aggregate (INDOT CA No. 53) [optional, used primarily where the purpose of the pad is to keep soil from adhering to vehicle tires]. 7. Where possible, divert all storm water runoff and drainage from the ingress /egress pad to a sediment trap or basin. Materials One to two and one -half inch diameter washed aggregate [Indiana Department of Transportation Course Aggregate No. 2 (see Appendix D)]. One -half to one and one -half inch diameter washed aggregate [INDOT CA No. 53 (see Appendix D)]. Geotextile fabric underlayment (see Appendix C) (used as a separation layer to prevent intermixing of aggregate and the underlying soil material and to provide greater bearing strength when encountering wet conditions or soils with a seasonal high water table limitation). Ma inspect daily. eshape pad as needed for drainage and runoff control. Top dress with clean aggregate as needed. immediately remove mud and sediment tracked or washed onto public roads. Flushing should only be used if the water can be conveyed into a sediment trap or basin. EXISTING PAVEMENT Purpose To capture sediment at the entrance to a storm drain inlet, allowing full use of the storm drain system during the construction period. Note: This measure is not recommended for paved surfaces due to inability to entrench the fabric and lack of an anchoring system. Note: Alternative support systems may be substituted for hardwood posts and cross braces. Contributing Drainage Area One acre maximum. Effective Life Six months (maximum). Capacity Runoff from a two -year frequency, 24 -hour storm event entering a storm drain without bypass flow. Geotextile Structure Height 12 to 18 inches, measured from top of storm drain inlet. Post spacing 36 -inch maximum spacing between posts. Frame support bracing to strengthen integrity of the structure. (Structure must withstand 12 -foot head of water and sediment without collapsing or undercutting.) GEOTEXTILE FABRIC DROP INLET PROTECTION Materials Support posts 2 x 2 inch or 2 x 4 inch hardwood posts. Three feet length, minimum. 1 x 2 inch or 1 x 3 inch hardwood cross bracing lumber. Lathe. Staples or nails. Geotextile fabric Table 1. Geotextile Fabric Specifications Installation 1. Dig an eight -inch deep, four -inch wide trench around the perimeter of the inlet. 2. If using pre assembled geotextile fabric and posts, drive the posts into the soil, tightly stretching the geotextile fabric between posts as each is driven. (Posts must be placed on the inlet side of the anchor trench with the geotextile fabric on the side of the trench farthest from the inlet.) Note: If assembling the geotextile fabric and posts on -site, drive the posts into the soil and then secure the geotextile fabric to the posts by placing a piece of lathe over the fabric and fastening it to the post (stretching the fabric between posts as it is fastened). 3. Use the wrap join method when joining posts. 4. Place the bottom 12 inches of geotextile fabric into the eight -inch deep trench, laying the remaining four inches in the bottom of the trench and extending away from the inlet. 5. Backfill the trench with soil material and compact it in place. 6. Brace the posts by nailing braces into each corner post or utilize rigid panels to support fabric. Note: In situations where storm water may bypass the structure, either: Set the top of the geotextile fabric filter at least six inches lower than the ground elevation on the down -slope side of the storm drain inlet, Build a temporary dike, compacted to six inches higher than the fabric, on the down -slope side of the storm drain inlet, AND /OR Use in conjunction with excavated drop inlet protection. 0 0 CO N c W 9- 0 0 0) N 0 N 0 w W 0) 0 N N 0 0 0 0 U- IL O 0 0 co O u7 O I- 0 z 0 z J W 0 N CO LI_ O N LO N M O CO 0 0 W LL m Z LL O o Q Z W Z Q f 0-z Q n 0(W z LLl z co D 0 W0 00 �0 0 I I- z Z Hai Q O U co 0 1- O z Q O 0- W N 0 For best results: (a) legume seed should be inoculated; (b) seeding mixtures containing legumes should preferably be spring- seeded, although the grass may be fail- seeded and the legume frost- seeded; and (c) if legumes are fall seeded, do so in early fall. 2 Tail fescue provides little cover for, and may be toxic; to some species of wildlife. The Indiana Department of Natural Resources recognizes the need for additional research on alternatives such as buffaiograss, orchardgrass, smooth bromegrass, and switchgrass. This research, in conjunction with demonstration areas, should focus on erosion control characteristics, wildlife toxicity, turf durability, and drought resistance. Notes: 1. An oat or wheat companion or nurse crop may be used with any of the above permanent seeding mixtures, at the following rates: (a) spring oats one fourth to three- fourths bushel per acre (b) wheal. no more than one -half bushel per acre 2. A high potential for fertilizer, seed, and ?Hutch to wash exists on steep banks, cuts, and in channels and areas of concentrated flow. Seedbed Preparation 1. Test soil to determine pH and nutrient levels. 2. Apply soil amendments as recommended by the soil test. If testing is not done, apply 400 to 600 pounds per acre of 12 -12 -12 analysis fertilizer, or equivalent. 3. Work the soil amendments into the upper two to four inches of the soil with a disk or rake operated across the slope. Seeding 1. Select a seed species or an appropriate seed mixture and application rate from Table 1. 2. Apply seed uniformly with a drill or cultipacker seeder or by broadcasting. Plant or cover seed to the depth shown in Table 1. 3. Inspect within 24 hours of each rain event and at least once every seven calendar days. 4. Check for erosion or movement of mulch and repair immediately. 5. Monitor for erosion damage and adequate cover (80 percent density); reseed, fertilize, and apply mulch where necessary. 6. If nitrogen deficiency is apparent. top -dress fall seeded wheat or rye seeding with 50 pounds per acre of nitrogen in February or March. Application Notes: 1. If drilling or broadcasting the seed, ensure good seed -to -soil contact by firming the seedbed with a roller or cultipacker after completing seeding operations. 2. Daily seeding when the soil is moist is usually most effective. 3. If seeding is done with a hydroseeder, fertilizer and mulch can be applied with the seed in a slurry mixture. 4. Apply mulch and anchor it in place. 1. Lay out the location of the fence so that it is parallel to the contour of the slope and at least 10 feet beyond the toe of the slope to provide a sediment storage area. Turn the ends of the fence up slope such that the point of contact between the ground and the bottom of the fence end terminates at a higher elevation than the top of the fence at its lowest point (see Exhibit 1). 2. Excavate an eight -inch deep by four -inch wide trench along the entire length of the fence line (see Exhibit 2). Installation by plowing is also acceptable. 3. Install the silt fence with the filter fabric located on the up -slope side of the excavated trench and the support posts on the down -slope side of the trench. 4. Drive the support posts at least 18 inches into the ground, tightly stretching the fabric between the posts as each is driven into the soil. A minimum of 12 inches of the filter fabric should extend into the trench. If it is necessary t join the ends of two fences, use the wrap joint method shown in Exhibit 3.) 5. Lay the lower four inches of filter fabric on the bottom of the trench and extend it toward the up -slope side of the trench. 6. Backfill the trench with soil material and compact it in place. Note: If the silt fence is being constructed on -site, attach the filter fabric to the support posts (refer to Tables 1 and 2 for spacing and geotextile specifications) and attach wooden lathe to secure the fabric to the posts. Allow for at least 12 inches of fabric below ground level. Complete the silt fence installation, following steps 1 through 6 above. Maintenance Inspect within 24 hours of a rain event and at least once every seven calendar days. If fence fabric tears, starts to decompose, or in any way becomes ineffective, replace the affected portion immediately. Note: All repairs should meet specifications as outlined within this measure. Remove deposited sediment when it is causing the filter fabric to bulge or when it reaches one -half the height of the fence at its lowest point. When contributing drainage area has been stabilized, remove the fence and sediment deposits, grade the site to blend with the surrounding area, and stabilize. NOT FOR CONSTRUCTION APPROVAL PENDING P.E. No. 10708654 DATE: Maintenance Inspect daily. nspect geotextile fabric and make needed repairs immediately. Remove sediment from pool area to provide storage for the next storm event. Avoid damaging or undercutting fabric during sediment removal. When contributing drainage area has been stabilized, remove sediment, properly dispose of all construction material, grade area to the elevation of the storm drain inlet top, then stabilize immediately. %t\llil1 i t M Tlit, .�`C' _ma .f.s. No. 107086541 s STATE OF I L I 4„ �V ENO I ANp, `,,'C O-- LS2050017 O '9� LS20500017 -5/ ND I �,o 11 19 -08 STATE OF DATE: