HomeMy WebLinkAboutO&M Manual (V2)
OPERATIONS & MAINTENANCE MANUAL
FOR POST-CONSTRUCTION MEASURES
Carmel Elementary Reconstruction
101 4th Avenue SE, Carmel, Indiana 46032
Karen K. Collins, PE
Indiana registration No. 10404538
PREPARED FOR
CARMEL CLAY SCHOOLS
5201 EAST MAIN STREET
CARMEL, IN 46033
November 2019 8365 Keystone Crossing, Suite 201 Indianapolis, Indiana 46240 Phone: (317) 202-0864 Fax: (317)202-0908 Revised January 2020
Carmel Elementary School
Clay Center Road Elementary
OPERATIONS & MAINTENANCE MANUAL
Table of Contents
1. BMP Owner
2. Definition of Best Management Practice (BMP)
3. Description of BMPs
a. Xcelerator XC-5 & XC-6
4. Inspection and Maintenance
a. Xcelerator XC-5 & XC-6
5. Description of BMPs
a. Underground Dry Pond with Isolator Row(s)
6. Inspection and Maintenance
a. Underground Dry Pond with Isolator Row(s)
7. Owner Acknowledgement Agreement
8. Operation, Maintenance and Management Inspection Checklists
9. BMP Location Maps
10. BMP Details
a. Xcelerator XC-5
b. Xcelerator XC-6
c. Underground Dry Pond with Isolator Row(s)
Carmel Elementary School
1. BMP OWNER
Name: Carmel Clay School District
Attn. Mr. Ron Farrand Jr., RA
Address: 5201 East 131st Street
Carmel, IN 46033
Phone: 317-815-3962
2. DEFINITION OF A BEST MANAGEMENT PRACTICE (BMP)
A Best Management Practice (BMP) is defined as a structural measure (wetland, pond, vegetated
swale, sand filter, etc.) designed to benefit water quality and quantity. Storm water can easily
become polluted by grease, oil, sediment, chemicals, and other contaminants as it travels to an
inlet or receiving water. The purpose of a BMP is to improve storm water quality primarily through
the removal of Total Suspended Solids (TSS).
The City of Carmel has Right-of-Entry to the development to inspect and maintain the BMP as
necessary. Easement(s) have been provided around the BMPs for this development, with
implied access as needed.
3. DESCRIPTION OF BMPs:
Xcelerator: BMP #1, the Xcelerator XC-5 & XC-6 hydrodynamic swirl filter, is used to treat storm
water on this site. The Xcelerator filter provides treatment for the most contaminated first flush,
while the cleaner peak storm runoff is diverted through the main conveyance pipe. The operation
begins when storm water enters the Xcelerator through a tangential inlet pipe which produces a
circular (or vortex) flow pattern that causes contaminates to settle. Because storm water flow is
intermittent by nature, the Xcelerator Concentrator retains water between storm events providing
both dynamic and quiescent settling of inorganic solids. The dynamic settling occurs during each
storm event, while the quiescent settling takes place between successive storms. A combination
of gravitational and hydrodynamic drag forces encourages the solids to drop out of the flow and
migrate to the center of the chamber where velocities are the lowest.
4. INSPECTION AND MAINTENANCE
Xcelerator:
• BMP Owner must routinely inspect BMPs to verify that all BMP components are
functioning as designed and are not in danger of failing. All BMPs need maintenance to
function as water quality and quantity enhancements. Maintenance can range from
dredging/pumping sediment out of the treatment structures to repairing any damage that
has affected the structure’s integrity and function.
Carmel Elementary School
• BMP Owner is responsible for the maintenance of the BMP and any costs associated with
maintaining the BMP. BMP Owner is required to perform any maintenance tasks outlined
in this text.
• BMP Owner shall keep the BMP free from litter, floating pollutants, and sediment
accumulated above levels outlined in this text.
• Representatives from the City of Carmel have the right to enter this property to inspect the
BMPs. The BMP Owner shall be financially responsible for any maintenance, repairs, or
recommendations for modification as required by the City of Carmel or its representatives
during inspections.
• Refer to the checklists with this Manual for guidance on BMP inspections.
• Inspections must be documented on the inspection forms included in this manual.
5. DESCRIPTION OF BMPs:
Underground Dry Pond with Isolator Row(s): BMP #2, the underground dry pond with isolator
row(s), is used to treat storm water on this site. The detention basin isolator row configuration
provides water quality treatment by intercepting debris as well as sediment and silt (materials)
into the isolator row(s), which are non-perforated pipes (to prevent unwanted escape of materials
in rock voids outside the detention pond). Once the materials have accumulated to a significant
depth, such as 3 to 6 inches deep, the access hatch can be opened and a vacuum truck used to
remove the materials and restore once again the full available detention volume.
6. INSPECTION AND MAINTENANCE
Underground Dry Pond with Isolator Row(s):
• The checklist is for the use of the BMP owner in performing routine inspections. The City
of Carmel may perform inspections of the BMP using a similar checklist. The BMP owner
is responsible for the cost of maintenance and annual inspections. The BMP owner must
maintain and update the BMP operations and maintenance plan. At a minimum the
operations and maintenance plan must include, but is not limited to:
• -Restore and stabilize any erosion.
• -Restorative maintenance involving removal of any litter, pollutants, excessive
accumulated debris or sediment. This may include skimming, dredging or vacuum
removal.
• BMP Owner must routinely inspect BMP to verify that all BMP components are functioning
as designed and are not in danger of failing. All BMPs need maintenance to function
Carmel Elementary School
effectively as water quality (and peak attenuation / mitigation) enhancements.
• Inspections must be documented on the inspection form included in this manual.
Maintenance of all storm water pollution & prevention plan (SWPPP) measures will be the
responsibility of the project owner, utilizing procedures outlined in this manual for post
construction water quality measures.
• Inspect outlet structure and remove any litter, debris or clogging as needed to restore
function.
• Do not place any fill (or any other material) in the detention basin.
• Deep-rooted plants and trees are not allowed in the vicinity of the detention basin.
• During the first year, monthly to semi-monthly (6 to 12 times in the year) inspections shall
be performed.
• After the first year, quarterly (four times a year) inspections should be performed.
Carmel Elementary School
Requirements regarding the submittal of annual inspection reports to the City of Carmel
Engineering Department:
The first report is due one year after construction is completed, with subsequent reports due
each year within the same month of the initial report, or on a schedule set by the City of Carmel.
If there are any deficiencies found during the inspection, these should be addressed. If the
inspection report is not received within the month it is due, if there are deficiencies which were
not included in the report, or if any deficiencies included in the report are not addressed in a
timely manner, the BMP owner faces enforcement action from the City.
Send to: City of Carmel Engineering Department
Storm Water O & M Program Manager
1 Civic Square
Carmel, IN 46032
This Operation and Maintenance Manual is submitted to the City of Carmel, IN with the intent of
insuring the longevity and adequate functioning of all BMPs. The BMP Owner noted is
responsible for any additional maintenance and/or repair activities noted in this text as required
by the City of Carmel, and any activities required to maintain the function and longevity of the
BMP, including, if necessary, measures and / or practices that are above and beyond what is
herein described.
Right of Entry to the City of Carmel
A permanent “Access & BMP Easement” shall be created which matches the one shown on the
plans. Right of Entry is hereby granted to the City of Carmel for access, inspection and
maintenance of the drainage facilities.
Carmel Elementary School
7. OWNER ACKNOWLEDGMENT AGREEMENT
Carmel Elementary School
Owner Acknowledgement Agreement ("Agreement)
For good and valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, the undersigned owner (“Owner”) hereby submits this Operation and
Maintenance Manual (“Manual”) to the City of Carmel, Indiana (“City”) as a written
acknowledgement of Owner’s warranty and agreement to institute, maintain, and follow the
water quality Best Management Practices (“BMPs”) listed below, and to follow and abide by
the inspection schedule and maintenance activities listed in this Manual. The Owner also hereby
agrees to provide, at Owner’s cost, all additional maintenance, repair, and/or replacement
services reasonably necessary to maintain the function and longevity of the BMP from and
including the date this Agreement is executed by Owner to and including the date on which a
new Agreement is filed with the City by another party who assumes all of the obligations and
responsibilities of Owner as set forth herein. The City of Carmel is Granted Authority to access
the BMPs.
BMPs:_Two (2) Xcelerator XC-6, One (1) Xcelerator XC-5, and Underground Dry Pond with
Isolator Row(s)_____
_______________________________ ___________________________
Owner Signature Date
_______________________________ ___________________________
Printed Name Company
STATE OF INDIANA )
) SS:
COUNTY OF HAMILTON )
BEFORE ME, the undersigned, a Notary Public in and for said County and State,
personally appeared _________________________________ Owner subscribed and
sworn before this ____ day of __________________, ________.
______________________________ ______________________________
County of Residence Signature
______________________________
Commission Expiration Date
______________________________
Printed Name
Carmel Elementary School
Xcelerator Inspection Check List
Site Name:Change in ownership since last inspection?Y N
Owner Name:
Owner Address:
Owner Phone Number:
Emergency Phone Number:
Location:
Date:
Time:
Inspector Name:
Floatable Debris and Oil
1.Remove manhole lid to expose liquid surface of Aqua-SwirlTM.
2.Remove floatable debris with basket or net if any is present.
3.If a hydrocarbon spill has occurred, (e.g. more than a sheen of oil or gas is present) the system should be cleaned immediately
(see "Cleaning" Figure 3).
Note: Water in an Aqua-SwirlTM can appear black like oil due to the dark body of the surrounding structure. Oil appears
darker than water in the system and is usually accompanied by debris (e.g. Styrofoam, etc.) with obvious signs of oil stains.
The depth of oil can be measured with an oil/water interface probe, a stadia rod with water phylic paste,
a coliwasa, or by simply collecting a representative sample with a jar attached to a rod.
4.If hydrocarbon absorbant floc or pads are used, these should be inspected to determine whether they are loaded with
hydrocarbons. This will be indicated by a dark colaration of the pad or floc. Pads and/or floc should be removed and
disposed of in accordance with City of Indianapolis and any applicable state and/or federal laws if they contain hydrocarbons.
Sediment Accumulation
Lower a dipstick tube equipped with a ball valve (e.g. Sludge Judge or similar device) into Aqua-SwirlTM through the service access provided.
Measure the depth of the sludge. The sludge should not exceed 12" depth before maintenance. See Figures 1 and 2.
12"
Figure 1 Figure 2
Aqua-Swirl TM XCelerator ®
Inspection
Maintenance Items
Operation, Maintenance, and Inspection Manual for BMP Owners
(Note: Attach certifications for local regulatory authority including any applicable fees.)
City of Carmel, Indiana
Site and Owner Information
Aqua-SwirlTM O and M Manual
Page 1
Diversion Structures
If an external diversion structure is present on the site, this should be inspected for the following items.
1. Inspect weir or other structure for structural decay or damage. Weirs are more susceptible to damage than off-set piping and should
be checked to confirm that they are not crumbling or decaying.
2. Inspect diversion structure and by-pass piping for signs of structural damage or blockage from debris or sediment accumulation.
3. Measure elevations on diversion weir or piping to ensure it is consistent with site plan design.
4. Inspect downstream structure in diversion system for signs of blockage or structural failure.
Remove sediments, oils and other
floatable pollutants with a vactor. Dispose of all waste in
accordance with City of Indianapolis and any applicable state,
and/or federal requirements.
Oil should be pumped and removed with any liquids and
sediments that have been trapped in the system.
These liquids should be taken to an industrial waste water
treatment facility for treatment. Liquids and solids pumped from
the AquaSwirlTM should not be dumped back into the
stormwater system or into a sanitary sewer.
Figure 3
Note: The AquaSwirlTM is designed so that entry to the system is not necessary for inspection or maintenance. If, however,
you wish to enter the system, this is an OSHA confined space entry and OSHA confined space entry procedures should be followed
to enter the system.
During Construction
Inspect the AquaSwirlTM every three months (minimum) and clean the system as needed. The AquaSwirlTM should be inspected and
cleaned at the end of construction regardless of whether it has reached its sediment or oil storage capacity.
First Year Post-Construction
Inspect the AquaSwirlTM every six months and clean the system as needed.
Second and Subsequent Years Post-Construction
If the AquaSwirlTM did not reach full sediment or floatable pollutant capacity in the First Year Post-Construction,
the system can be inspected once annually and cleaned as needed or bi-annually at a minimum.
If the AquaSwirlTM reached full sediment or floatable pollutant capacity in less than 12 months in the First Year Post-Construction,
the system should be inspected at least once every six months and cleaned as needed. If site monitoring indicates that trapped sediment
hardens over time, the AquaSwirlTM should be cleaned prior to sediment hardening regardless of whether it has reached its sediment storage capac
Bypass Structures
Bypass structures should be inspected whenever the AquaSwirlTM is inspected and maintained as needed.
Cleaning
Inspection (continued)
Maintenance Schedule
Aqua-SwirlTM O and M Manual
Page 2
Company Name:
Street Address:
City, State, Zip:
Contact:
Office Phone:
Mobile Phone:
Pager:
Date of cleaning:(Next inspection should be 3 months from this date for the first year).
Time of cleaning:
Date of next inspection:
Floatable debris present (Y/N)?
Oil present (Y/N)?Oil depth (inches):
Any structural damage?Y N Where?
Any evidence of structural wear?Y N Where?
Odors present?Y N Describe:
Any plugging?Y N Describe:
Activity Log
Structural Conditions and Comments
Maintenance Company Information
Aqua-SwirlTM O and M Manual
Page 3
Additional Comments and/or Actions to Be Taken Time Frame
NOTES:
1. Attach site plan showing Aqua-SwirlTM location.
2. Attach detail drawing showing Aqua-SwirlTM dimensions and model number.
3. If a diversion structure is used, attached details showing basic design and elevations.
NOTES
Aqua-SwirlTM O and M Manual
Page 4
Date Construction Started:
Date Construction Ended:
Activity 1 2 3 4 5 6 7 8 9 10 11 12
Inspect and Clean as Needed X X X X
Inspect Bypass Structures X X X X
(if applicable) and Maintain
As Needed
Clean System*X*
* The AquaSwirlTM should be cleaned once a year regardless of whether it has reached full pollutant storage capacity during the construction
phase of the project.
Activity 1 2 3 4 5 6 7 8 9 10 11 12
Inspect and Clean as Needed X X
Inspect Bypass Structures X X
(if applicable) and Maintain
As Needed
Clean System*X*
* The AquaSwirlTM should be cleaned at the end of the first year post construction if it is at or near its pollutant storage capcacity.
Otherwise, the system can be cleaned at a later date depending on how quickly the sediment starts to harden.
Activity 1 2 3 4 5 6 7 8 9 10 11 12
Inspect and Clean as Needed*X X
Inspect Bypass Structures*X X
(if applicable) and Maintain
As Needed
Clean System*
*If the AquaSwirlTM did not reach full sediment or floatable pollutant capacity in the First Year Post-Construction, the system can be inspected
once annually. If the AquaSwirlTM reached full sediment or floatable pollutant capacity in less than 12 months in the First Year
Post-Construction, the system should be inspected as frequently as past history warrants and cleaned as needed.
Regardless of whether the AquaSwirlTM reaches full sediment or floatable storage capacity, it should be cleaned
frequently enough to prevent captured sediments from hardening. Normally, cleaning once every two to three years should be sufficient to
prevent sediments from hardening.
*The bypass system should be inspected with each AquaSwirlTM inspection and maintained as needed.
Second and Subsequent Years Post-Construction
Month
During Construction
Month
First Year Post-Construction
Month
Aqua-Swirl TM
TABULAR MAINTENANCE SCHEDULE
Aqua-SwirlTM O and M Manual
Page 5
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BMP: UNDERGROUND DRY PONDWITH ISOLATOR ROW(S)BMP: XC-5BMP: XC-6BMP: XC-6BMP & ACCESSEASEMENTSHEET No.SCALE:Date:PROJECT:TITLE:Job No.8365 Keystone Crossing, Suite 201
Indianapolis, IN. 46240 (317) 202-0864
BMP
LOCATION MAPP101-03-201"= 120'
2733 Kanasita Drive, Suite 111, Chattanooga, TN 37343Phone (888) 344-9044 Fax (423) 826-2112www.aquashieldinc.comStructure #:Drawn By:Scale:Date:6/26/2019RvwedRvw. DateU.S. Patent No. 6524473 and other Patent PendingAqua-Swirl XCeleratorAs ShownOFloresAqua-Swirl Stormwater Treatment SystemStandard DetailXC-5 CCW STDXC-5 STDAqua-Swirl Polymer Coated Steel (PCS)Stormwater Treatment System12 in[305 mm]Manhole Frame & Cover DetailFor Non-Traffic Areas OnlyNTS4 in[1219 mm] Min.Gravel BackfillConcreteWrap Compressible ExpansionJoint Material to a minimum1/2-inch [13 mm] thickness aroundtop of riser to allow transfer ofinadvertent loading frommanhole cover to concrete slab.RiserSoilCoverFrame1/2 in[13 mm]1/2 in[13 mm]Place small amount ofconcrete [3,000 psi [20MPa] (min)] to supportand level manhole frame.DO NOT allow manholeframe to rest upon riser.Backfill (90%Proctor Density)8 in[203 mm]4 1/2 in[114 mm]Unless other traffic barriers are present,bollards shall be placed around access riser(s)in non-traffic areas to prevent inadvertentloading by maintenance vehicles.Manhole Frame & Cover DetailFor Traffic Loading AreasNTSCoverFrame48 in[1219 mm] Min.Backfill (90%Proctor Density)3,000 psi [20 MPa](min) Concrete#4 [13 mm] Rebar@ 6 in [152 mm]Each Way30 in [762 mm]Riser1/2 in[13 mm]4 1/2 in[114 mm]14 in[356 mm]1/2 in [13 mm] ThickExpansion JointMaterialIf traffic loading (HS-25) is required or anticipated, a 4-foot [1.22 m]diameter, 14-inch [356 mm] thick reinforced concrete pad must beplaced over the Stormwater Treatment System Riser to support andlevel the manhole frame, as shown. The top of riser pipe must bewrapped with compressible expansion joint material to a minimum1/2-inch [13 mm] thickness to allow transfer of wheel loads frommanhole cover to concrete slab. Manhole cover shall bear on concreteslab and not on riser pipe. The concrete slab shall have a minimumstrength of 3,000 psi [20 MPa] and be reinforced with #4 [13 mm]reinforcing steel as shown. Minimum cover over reinforcing steel shallbe 1-inch [25 mm]. Top of manhole cover and concrete slab shall belevel with finish grade.Please see accompanied Aqua-Swirl specification notes. See SitePlan for actual System orientation. Approximate dry (pick) weight:2200 lbs [1000 kg].Backfill shall extend at least 18inches [457 mm] outward fromSwirl Concentrator and for thefull height of the SwirlConcentrator (including riser)extending laterally toundisturbed soils. (See MHDetail Below)BackfillBeddingUndisturbed soil18 in[457 mm]6 in[152 mm]11As an alternative, 42 in [1067 mm] diameter, HS-20/25rated precast concrete rings may be substituted. 14 in[356 mm] thickness must be maintained.XC-5 inlet/outlet pipe size ranges up to 30 in [762 mm].XC-5 chamber height may vary up to 111 in [2819 mm],depending on inlet/outlet pipe size.Orientation may vary from a minimum of 90° to amaximum of 180°. Clockwise or counterclockwiseorientation as needed.2332Plan ViewSCALE 1:40 72 in[1829 mm] 72 in[1829 mm] n30 in[762 mm] n30 in[762 mm]2Octagonal Base Plate Ø60 in[Ø1527 mm]Elevation ViewSCALE 1:40 63 in[16 mm] 111 in[2819 mm][914 mm][787 mm] 5 MH Frame[127 mm] n30 in[762 mm]Band Couplerby Manufacturer.(as needed)RiserManhole Frame andCover by Manufacturer.(See Details)Rim elevations tomatch finish grade.Pipe couplingby Contractor.12 in [305 mm]long Stub-outby Manufacturer.44el. VariesInlet/Outlet Invertel. Variesel. VariesGrade (Rim) el. VariesPipe couplingby Contractor.12 in [305 mm]long Stub-outby Manufacturer.180° n60 in[1524 mm]Projected ViewSCALE 1:70Optional inletorientations available(See note 4)
2733 Kanasita Drive, Suite 111, Chattanooga, TN 37343Phone (888) 344-9044 Fax (423) 826-2112www.aquashieldinc.comStructure #:Drawn By:Scale:Date:6/26/2019RvwedRvw. DateU.S. Patent No. 6524473 and other Patent PendingAqua-Swirl XCeleratorAs ShownOFloresAqua-Swirl Stormwater Treatment SystemStandard DetailXC-6 CCW STDXC-6 STDAqua-Swirl Polymer Coated Steel (PCS)Stormwater Treatment System12 in[305 mm]Manhole Frame & Cover DetailFor Non-Traffic Areas OnlyNTS4 in[1219 mm] Min.Gravel BackfillConcreteWrap Compressible ExpansionJoint Material to a minimum1/2-inch [13 mm] thickness aroundtop of riser to allow transfer ofinadvertent loading frommanhole cover to concrete slab.RiserSoilCoverFrame1/2 in[13 mm]1/2 in[13 mm]Place small amount ofconcrete [3,000 psi [20MPa] (min)] to supportand level manhole frame.DO NOT allow manholeframe to rest upon riser.Backfill (90%Proctor Density)8 in[203 mm]4 1/2 in[114 mm]Unless other traffic barriers are present,bollards shall be placed around access riser(s)in non-traffic areas to prevent inadvertentloading by maintenance vehicles.Manhole Frame & Cover DetailFor Traffic Loading AreasNTSCoverFrame48 in[1219 mm] Min.Backfill (90%Proctor Density)3,000 psi [20 MPa](min) Concrete#4 [13 mm] Rebar@ 6 in [152 mm]Each Way30 in [762 mm]Riser1/2 in[13 mm]4 1/2 in[114 mm]14 in[356 mm]1/2 in [13 mm] ThickExpansion JointMaterialIf traffic loading (HS-25) is required or anticipated, a 4-foot [1.22 m]diameter, 14-inch [356 mm] thick reinforced concrete pad must beplaced over the Stormwater Treatment System Riser to support andlevel the manhole frame, as shown. The top of riser pipe must bewrapped with compressible expansion joint material to a minimum1/2-inch [13 mm] thickness to allow transfer of wheel loads frommanhole cover to concrete slab. Manhole cover shall bear on concreteslab and not on riser pipe. The concrete slab shall have a minimumstrength of 3,000 psi [20 MPa] and be reinforced with #4 [13 mm]reinforcing steel as shown. Minimum cover over reinforcing steel shallbe 1-inch [25 mm]. Top of manhole cover and concrete slab shall belevel with finish grade.Please see accompanied Aqua-Swirl specification notes. See SitePlan for actual System orientation. Approximate dry (pick) weight:3000 lbs [1400 kg].Backfill shall extend at least 18inches [457 mm] outward fromSwirl Concentrator and for thefull height of the SwirlConcentrator (including riser)extending laterally toundisturbed soils. (See MHDetail Below)BackfillBeddingUndisturbed soil18 in[457 mm]6 in[152 mm]11As an alternative, 42 in [1067 mm] diameter, HS-20/25rated precast concrete rings may be substituted. 14 in[356 mm] thickness must be maintained.XC-6 inlet/outlet pipe size ranges up to 36 in [914 mm].XC-6 chamber height may vary up to 128 in [3251 mm],depending on inlet/outlet pipe size.Orientation may vary from a minimum of 90° to amaximum of 180°. Clockwise or counterclockwiseorientation as needed.2332Plan ViewSCALE 1:40 84 in[2134 mm] 84 in[2134 mm] n36 in[914 mm] n36 in[914 mm]2Octagonal Base Plate Ø72 in[Ø1832 mm]Elevation ViewSCALE 1:40 74 in[188 mm] 128 in[3251 mm][1067 mm][940 mm] 5 MH Frame[127 mm] n30 in[762 mm]Band Couplerby Manufacturer.(as needed)RiserManhole Frame andCover by Manufacturer.(See Details)Rim elevations tomatch finish grade.Pipe couplingby Contractor.12 in [305 mm]long Stub-outby Manufacturer.44el. VariesInlet/Outlet Invertel. Variesel. VariesGrade (Rim) el. VariesPipe couplingby Contractor.12 in [305 mm]long Stub-outby Manufacturer.180° n72 in[1829 mm]Projected ViewSCALE 1:70Optional inletorientations available(See note 4)
ACCESS HATCHACCESS HATCHACCESS HATCH18"18"843.80843.80843.80844.20843.80
1.75" CCTYPCOIL WIDTHOPEN AREA = 3.33 SQ IN/SQ FT2.711"9@2.711" = 24.399"EDGE SPACING EQUAL ON BOTH SIDESNOTES:1.PERFORATIONS MEET AASHTO AND ASTM SPECIFICATIONS.2.PERFORATION OPEN AREA PER SQUARE FOOT OF PIPE IS BASEDON THE NOMINAL DIAMETER AND LENGTH OF PIPE.3.DIMENSIONS SUBJECT TO MANUFACTURER'S TOLERANCES.4.ALL HOLES 3/8"Ø.EXFILTRATION AREASTANDARD PERFORATION PATTERNSAPPROXIMATE AREA PER LINEAR FOOT OF PIPEPIPECORRUGATION PATTERN2 2/3" x 1/2"3" x 1"5" x 1"ULTRA FLO84"Ø85.5 SQ. IN.90.3 SQ. IN.87.9 SQ. IN.NOTES:·GAGE AND COATING LIMITATIONS APPLY. 5" x 1" IS NOT AVAILABLE INALUMINUM.·DIMENSIONS SUBJECT TO MANUFACTURER'S TOLERANCES.TYPICAL PERFORATION DETAILNOT TO SCALETYPICAL SECTION VIEWNOT TO SCALENOTE: IF SALTING AGENTS FOR SNOW AND ICE REMOVAL ARE USED ON OR NEAR THEPROJECT, A GEOMEMBRANE BARRIER IS RECOMMENDED WITH THE SYSTEM. THEGEOMEMBRANE LINER IS INTENDED TO HELP PROTECT THE SYSTEM FROM THEPOTENTIAL ADVERSE EFFECTS THAT MAY RESULT FROM A CHANGE IN THESURROUNDING ENVIRONMENT OVER A PERIOD OF TIME. PLEASE REFER TO THECORRUGATED METAL PIPE DETENTION DESIGN GUIDE FOR ADDITIONAL INFORMATION.84" TYP.36"TYP.27" SEE TYPICALBACKFILL DETAILNOTESLIMITS OFREQUIREDBACKFILL20 MIL PEIMPERMEABLELINER OVERTOP OF PIPE(IF REQUIRED)1MINIMUM TRENCH WIDTH MUST ALLOW ROOM FOR PROPER COMPACTION OF HAUNCH MATERIALS UNDER THE PIPE. THE TRENCH WIDTH IS THE MINIMUM AMOUNT REQUIRED FOR PROPER INSTALLATION AND TO SUPPORT HORIZONTAL PRESSURE FROMTHE PIPE. THE MANUFACTURER'S SUGGESTED MINIMUM VALUE IS: 1.5D + 12".1aMINIMUM EMBANKMENT WIDTH (IN FEET) FOR INITIAL FILL ENVELOPE:3.0D BUT NO LESS THAN D + 4'0".2FOUNDATION SHALL BE WELL CONSOLIDATED & STABLE, CAPABLE OF SUPPORTING FILL MATERIAL LOAD.3OPEN-GRADED GRANULAR BEDDING MATERIAL SHALL BE A RELATIVELY LOOSE MATERIAL THAT IS ROUGHLY SHAPED TO FIT THEBOTTOM OF THE PIPE, 4" TO 6" IN DEPTH. SUGGESTED PARTICLE SIZE OF 1/2 CORRUGATION DEPTH.4CORRUGATED STEEL PIPE (CSP / HEL-COR).5HAUNCH ZONE MATERIAL SHALL BE HAND SHOVELED OR SHOVEL SLICED INTO PLACE TO ALLOW FOR PROPER COMPACTION.5aTHE BACKFILL MATERIAL SHALL BE A FREE-DRAINING, ANGULAR, WASHED-STONE PER AASHTO M 43 SIZE #3 WITH A ½” - 2” PARTICLESIZE OR APPROVED EQUAL. MATERIAL SHALL BE PLACED IN 12" MAXIMUM LIFTS AND SHALL BE WORKED INTO THE PIPE HAUNCHES BYMEANS OF SHOVEL-SLICING, RODDING, AIR-TAMPER, VIBRATORY PLATE OR OTHER EFFECTIVE METHODS. COMPACTION IS CONSIDEREDADEQUATE WHEN A DENSITY EQUIVALENT TO 90% STANDARD PROCTOR IS ACHIEVED OR WHEN NO FURTHER YIELDING OF THEMATERIAL IS OBSERVED UNDER THE COMPACTOR OR UNDER FOOT. THE PROJECT ENGINEER OR HIS REPRESENTATIVE MUST BESATISFIED WITH THE LEVEL OF COMPACTION. INADEQUATE COMPACTION CAN LEAD TO EXCESSIVE PIPE DEFLECTIONS ANDSETTLEMENT OF THE SOILS OVER THE SYSTEM. BACKFILL SHALL BE PLACED SUCH THAT THERE IS NO MORE THAN A TWO-LIFTDIFFERENTIAL BETWEEN THE SIDES OF ANY PIPE IN THE SYSTEM AT ALL TIMES DURING THE BACKFILL PROCESS. BACKFILL SHALL BEADVANCED ALONG THE LENGTH OF THE SYSTEM AT THE SAME RATE TO AVOID DIFFERENTIAL LOADING ON ANY PIPES IN THE SYSTEM.6INITIAL OPEN GRADED GRANULAR BACKFILL ABOVE PIPE MAY INCLUDE ROAD BASE MATERIAL (AND RIGID PAVEMENT IF APPLICABLE).SEE TABLE ABOVE.6aTOTAL HEIGHT OF COMPACTED COVER FOR CONVENTIONAL HIGHWAY LOADS IS MEASURED FROM TOP OF PIPE TO BOTTOM OFFLEXIBLE PAVEMENT OR TOP OF RIGID PAVEMENT.7FINAL BACKFILL MATERIAL SELECTION AND COMPACTION REQUIREMENTS SHALL FOLLOW THE PROJECT PLANS AND SPECIFICATIONSPER THE ENGINEER OF RECORD.NOTES:·GEOTEXTILE SHOULD BE USED TO PREVENT SOIL MIGRATION INTO VARYING SOIL TYPES (PROJECT ENGINEER).·FOR MULTIPLE BARREL INSTALLATIONS THE RECOMMENDED STANDARD SPACING BETWEEN PARALLEL PIPE RUNS SHALL BE PIPE DIA. / 2 BUT NO LESS THAN12", OR 36" FOR PIPE DIAMETERS 72" AND LARGER.·CONTACT YOUR CONTECH REPRESENTATIVE FOR NONSTANDARD SPACING (TABLE C12.6.7-1).FINAL BACKFILLGRANULAR BACKFILL DIA
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)IN SITUDIAMETERMIN.COVERCORR.PROFILE6"-10"12"1 1/2" x 1/4"12"-48"12"2 2/3" x 1/2"54"-96"12"3" x 1", 5" x 1"102"-144"18"3" x 1", 5" x 1"LIMITS OF DRAIN ROCK MAY BEPLACED BELOW PIPE AS DEFINEDBY ENGINEER OF RECORD.FOUNDATION SPEC STILLAPPLIES AND BEDDING WILL BETHE FIRST 4" TO 6" BELOWINVERT4TYPICAL BACKFILL DETAILNOT TO SCALEEMBANKMENT CONDITIONTRENCH CONDITION66aBEDDINGFOUNDATIONPIPE EMBEDMENT
5a7532INITIAL FILL ENVELOPE 1 1a7037 Ridge Road, Hanover, MD 21076866-740-3318 410-796-5505 866-376-8511 FAX MAKCHECKED:DRAWN:MAKDESIGNED:APPROVED:I:\MERLIN\PROJECT\ACTIVE\631000\631048\631048-10-CMP DETENTION\DRAWINGS\631048-010-CMP CONFAB.DWG 11/13/2019 11:34 AM
SHEET NO.:OFP2 DATE:PROJECT No.:631048SEQ. No.:010PROPOSALCONTECHDRAWING84"Ø UNDERGROUND DETENTION SYSTEM - 631048-010CARMEL ELEMETARYINDIANAPOLIS, INSITE DESIGNATION:The design and information shown on this drawing is providedas a service to the project owner, engineer and contractor byContech Engineered Solutions LLC ("Contech"). Neither thisdrawing, nor any part thereof, may be used, reproduced ormodified in any manner without the prior written consent ofContech. Failure to comply is done at the user's own risk andContech expressly disclaims any liability or responsibility forsuch use.If discrepancies between the supplied information upon whichthe drawing is based and actual field conditions are encounteredas site work progresses, these discrepancies must be reportedto Contech immediately for re-evaluation of the design. Contechaccepts no liability for designs based on missing, incomplete orinaccurate information supplied by others.www.ContechES.com4REVISION DESCRIPTIONDATEMARKBY PIPE Ø
2'-6"PIPE Ø2'-6"PIPE Ø
FRONTTYPICAL MANWAY DETAILNOT TO SCALE1'-0" MIN.48"Ø to 90"Ø FITTING REINFORCEMENTMAY BE REQUIRED BASED ON HEIGHT OFCOVER AND LIVE LOAD CONDITIONPLAN11/13/19
FLAT GASKETFLAT GASKETHUGGERBANDCONNECTION DETAIL(SBBS)2 2/3"x1/2" RE-ROLLED END HEL-COR PIPEH-12 HUGGER BAND DETAILNOT TO SCALEGENERAL NOTES:1.JOINT IS TO BE ASSEMBLED PER AASHTO BRIDGE CONSTRUCTION SPECIFICATION SEC 26.4.2.4.2.BAND MATERIALS AND/OR COATING CAN VARY BY LOCATION. CONTACT YOUR CONTECH REPRESENTATIVE FOR AVAILABILITY.3.BANDS ARE SHAPED TO MATCH THE PIPE-ARCH WHEN APPLICABLE.4.BANDS ARE NORMALLY FURNISHED AS FOLLOWS:·12" THRU 48" 1-PIECE·54" THRU 96" 2-PIECES·102" THRU 144" 3-PIECES5.BAND FASTENERS ARE ATTACHED WITH SPOT WELDS, RIVETS OR HAND WELDS.6.ALL CMP IS REROLLED TO HAVE ANNULAR END CORRUGATIONS OF 2 2/3"x1/2"7.DIMENSIONS ARE SUBJECT TO MANUFACTURING TOLERANCES.8.ORDER SHALL DESIGNATE GASKET OPTION, IF REQUIRED (SEE DETAILS ABOVE).SINGLE BAR,BOLT AND STRAP (SBBS)12 1/8"10 1/4"12" TECHCO BAND ANGLES 1/2" DIA. BOLT12" RISER BAND DETAILNOT TO SCALEPLAIN END CMP RISER PIPECONNECTION DETAIL7 1/2" TECHCO SHOWN - MAY VARYSTUB HEIGHT2'-0" RECOMMENDED12" MIN.MAINLINEPIPERISEREXTENSIONFLAT BAND SHOWN,MAY VARY (NOGASKET)GENERAL NOTES:1.DELIVERED BAND STYLE AND FASTENER TYPE MAY VARY BY FABRICATION PLANT.2.JOINT IS TO BE ASSEMBLED PER AASHTO BRIDGE CONSTRUCTION SPECIFICATION SEC 26.4.2.4.3.BAND MATERIAL AND GAGE TO BE SAME AS RISER MATERIAL.4.IF RISER HAS A HEIGHT OF COVER OF 10' OR MORE, USE A SLIP JOINT.5.BANDS ARE NORMALLY FURNISHED AS FOLLOWS:·12" THRU 48" 1-PIECE·54" 2-PIECES6.ALL RISER JOINT COMPONENTS WILL BE FIELD ASSEMBLED.7.MANHOLE RISERS IN APPLICATIONS WHERE TRAFFIC LOADS ARE IMPOSED REQUIRE SPECIAL DESIGN CONSIDERATIONS.8.DIMENSIONS SUBJECT TO MANUFACTURING TOLERANCES.ELEVATION VIEWOF CMP AND RISER7037 Ridge Road, Hanover, MD 21076866-740-3318 410-796-5505 866-376-8511 FAX MAKCHECKED:DRAWN:MAKDESIGNED:APPROVED:I:\MERLIN\PROJECT\ACTIVE\631000\631048\631048-10-CMP DETENTION\DRAWINGS\631048-010-CMP CONFAB.DWG 11/13/2019 11:34 AM
SHEET NO.:OFP3 DATE:PROJECT No.:631048SEQ. No.:010PROPOSALCONTECHDRAWING84"Ø UNDERGROUND DETENTION SYSTEM - 631048-010CARMEL ELEMETARYINDIANAPOLIS, INSITE DESIGNATION:The design and information shown on this drawing is providedas a service to the project owner, engineer and contractor byContech Engineered Solutions LLC ("Contech"). Neither thisdrawing, nor any part thereof, may be used, reproduced ormodified in any manner without the prior written consent ofContech. Failure to comply is done at the user's own risk andContech expressly disclaims any liability or responsibility forsuch use.If discrepancies between the supplied information upon whichthe drawing is based and actual field conditions are encounteredas site work progresses, these discrepancies must be reportedto Contech immediately for re-evaluation of the design. Contechaccepts no liability for designs based on missing, incomplete orinaccurate information supplied by others.www.ContechES.com4REVISION DESCRIPTIONDATEMARKBY 11/13/19
MANHOLE CAP DETAILNOT TO SCALE8"11" TYP.2" COVER
TYP.1" GAP (TYP. ALL
SIDES)NOTES:1.DESIGN IN ACCORDANCE WITH AASHTO, 17thEDITION AND ACI 350.2.DESIGN LOAD HS25.3.EARTH COVER = 1' MAX.4.CONCRETE STRENGTH = 4,000 psi5.REINFORCING STEEL = ASTM A615, GRADE 60.6.PROVIDE ADDITIONAL REINFORCING AROUNDOPENINGS EQUAL TO THE BARS INTERRUPTED,HALF EACH SIDE. ADDITIONAL BARS TO BE IN THESAME PLANE.AA 2" COVER(TYP)SECTION VIEWROUND OPTION PLAN VIEWSQUARE OPTION PLAN VIEWØ CMP RISERINTERRUPTED BARREPLACEMENT,SEE NOTE 6.STANDARDREINFORCING,SEE TABLEOPENING INPROTECTIONSLAB FORACESS#4 DIAGONAL TRIMBAR (TYP. 4 PLACES),SEE NOTE 7.AINTERRUPTED BARREPLACEMENT, SEENOTE 6.BOPENING INPROTECTIONSLAB FORACCESS#4 DIAGONAL TRIMBAR (TYP. 4 PLACES),SEE NOTE 7.STANDARDREINFORCING,SEE TABLEGASKET MATERIALSUFFICIENT TO PREVENTSLAB FROM BEARING ONRISER TO BE PROVIDED BYCONTRACTOR.2" COVER(TYP.)ØBREINFORCING TABLEØ CMPRISERAB ØREINFORCING**BEARINGPRESSURE(PSF)24"4'Ø4'x4'26"#5 @ 10" OCEW#5 @ 10" OCEW2,5401,90030"4'-6"Ø4'-6" x 4'-6"32"#5 @ 10" OCEW#5 @ 9" OCEW2,2601,67036"5'Ø5' x 5'38"#5 @ 9" OCEW#5 @ 8" OCEW2,0601,50042"5'-6"Ø5'-6" x 5'-6"44"#5 @ 8" OCEW#5 @ 8" OCEW1,4901,37048"6'Ø6' x 6'50"#5 @ 7" OCEW#5 @ 7" OCEW1,2101,270** ASSUMED SOIL BEARING CAPACITY1'-0"A2
"
COVER
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COVER
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)7.TRIM OPENING WITH DIAGONAL #4 BARS, EXTEND BARS AMINIMUM OF 12" BEYOND OPENING, BEND BARS AS REQUIREDTO MAINTAIN BAR COVER.8.PROTECTION SLAB AND ALL MATERIALS TO BE PROVIDED ANDINSTALLED BY CONTRACTOR.9.DETAIL DESIGN BY DELTA ENGINEERS, ARCHITECTS AND LANDSURVEYORS, ENDWELL, NY.ØB36"Ø MAX., HS-25 ACCESS CASTINGWITH GRADE RINGS AS REQUIRED, TOBE PROVIDED AND INSTALLED BYCONTRACTOR. MAY BE TOP MOUNTED(AS SHOWN) OR RECESSED.CMPPROTECTIONSLABVARIESRIM/FINISHEDGRADEACCESS CASTING NOT SUPPLIED BY CONTECH7037 Ridge Road, Hanover, MD 21076866-740-3318 410-796-5505 866-376-8511 FAX MAKCHECKED:DRAWN:MAKDESIGNED:APPROVED:I:\MERLIN\PROJECT\ACTIVE\631000\631048\631048-10-CMP DETENTION\DRAWINGS\631048-010-CMP CONFAB.DWG 11/13/2019 11:34 AM
SHEET NO.:OFP4 DATE:PROJECT No.:631048SEQ. No.:010PROPOSALCONTECHDRAWING84"Ø UNDERGROUND DETENTION SYSTEM - 631048-010CARMEL ELEMETARYINDIANAPOLIS, INSITE DESIGNATION:The design and information shown on this drawing is providedas a service to the project owner, engineer and contractor byContech Engineered Solutions LLC ("Contech"). Neither thisdrawing, nor any part thereof, may be used, reproduced ormodified in any manner without the prior written consent ofContech. Failure to comply is done at the user's own risk andContech expressly disclaims any liability or responsibility forsuch use.If discrepancies between the supplied information upon whichthe drawing is based and actual field conditions are encounteredas site work progresses, these discrepancies must be reportedto Contech immediately for re-evaluation of the design. Contechaccepts no liability for designs based on missing, incomplete orinaccurate information supplied by others.www.ContechES.comCONSTRUCTION LOADSFOR TEMPORARY CONSTRUCTION VEHICLE LOADS, AN EXTRA AMOUNT OF COMPACTED COVER MAY BE REQUIRED OVERTHE TOP OF THE PIPE. THE HEIGHT-OF-COVER SHALL MEET THE MINIMUM REQUIREMENTS SHOWN IN THE TABLE BELOW.THE USE OF HEAVY CONSTRUCTION EQUIPMENT NECESSITATES GREATER PROTECTION FOR THE PIPE THAN FINISHEDGRADE COVER MINIMUMS FOR NORMAL HIGHWAY TRAFFIC.PIPE SPAN,INCHES18-50MINIMUM COVER (FT)AXLE LOADS(kips)50-7575-110110-15012-422.02.53.03.04.03.53.048-723.03.078-1203.54.04.04.54.54.0126-1443.5*MINIMUM COVER MAY VARY, DEPENDING ON LOCAL CONDITIONS. THE CONTRACTOR MUST PROVIDE THE ADDITIONALCOVER REQUIRED TO AVOID DAMAGE TO THE PIPE. MINIMUM COVER IS MEASURED FROM THE TOP OF THE PIPE TOTHE TOP OF THE MAINTAINED CONSTRUCTION ROADWAY SURFACE. HEIGHT OFCOVERTEMPORARY COVER FORCONSTRUCTION LOADSFINISHEDGRADE CONSTRUCTION LOADING DIAGRAMNOT TO SCALESCOPETHIS SPECIFICATION COVERS THE MANUFACTURE ANDINSTALLATION OF THE CORRUGATED STEEL PIPE (CSP) DETAILED INTHE PROJECT PLANS.MATERIALTHE ALUMINIZED TYPE 2 STEEL COILS SHALL CONFORM TO THEAPPLICABLE REQUIREMENTS OF AASHTO M274 OR ASTM A929.PIPETHE CSP SHALL BE MANUFACTURED IN ACCORDANCE WITH THEAPPLICABLE REQUIREMENTS OF AASHTO M36 OR ASTM A760. THEPIPE SIZES, GAGES AND CORRUGATIONS SHALL BE AS SHOWN ONTHE PROJECT PLANS.ALL FABRICATION OF THE PRODUCT SHALL OCCUR WITHIN THEUNITED STATES.HANDLING AND ASSEMBLYSHALL BE IN ACCORDANCE WITH RECOMMENDATIONS OF THENATIONAL CORRUGATED STEEL PIPE ASSOCIATION (NCSPA)INSTALLATIONSHALL BE IN ACCORDANCE WITH AASHTO STANDARDSPECIFICATIONS FOR HIGHWAY BRIDGES, SECTION 26, DIVISION IIOR ASTM A798 AND IN CONFORMANCE WITH THE PROJECT PLANSAND SPECIFICATIONS. IF THERE ARE ANY INCONSISTENCIES ORCONFLICTS THE CONTRACTOR SHOULD DISCUSS AND RESOLVEWITH THE SITE ENGINEER.IT IS ALWAYS THE RESPONSIBILITY OF THE CONTRACTOR TOFOLLOW OSHA GUIDELINES FOR SAFE PRACTICES.SPECIFICATION FOR CORRUGATED STEEL PIPE-ALUMINIZED TYPE 2 STEELMATERIAL SPECIFICATIONNOT TO SCALE4REVISION DESCRIPTIONDATEMARKBY 11/13/19