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Home My WebLink AboutC0.410CONCRETE WASHOUT (BELOW GRADE SYSTEM) EXCAVATION DO0000o0 0 0 00 0 0 SLOPE Ta' MIN. 3:1 10' MIN. MAX 0 0 0 0 Oooa000 PLAN VIEW sND' OR oTHER Fi APPROPRIATE ANCHORING SYSTEM TO SECURE THE POLYETHYLENE LINING. POLYETHYLENE LINING (10 MILLIMETERS) BECT10N A —A l' MIN. FREEBOARD / SLOPE 3:1 MAX. CONCRETE WASHOUT (ABOVE GRADE SYSTEM) PLAN VIEW WOOD OR METAL STARES TO METAL PINS OR STAPLES TO SECURE THE STRAW BALES SECURE THE POLYETHYLENE (2 PER STRAW BALE) LINING TO THE STRAW BALES. STRAW BALE (ALTERNATIVE POLYETHYLENE LINING MATERIALS OR PRODUC (10 MILS); THE LINING MAY BE USED TO PROWDE SHOULD EYTEND OVER BECT10N A —A STRUCTURAL CONTAINMENT, THE STRAW BP1E5. \ \ \�'\ \\�\ STRAW BALES ENTRENCHED \ / COMPACTED SOIL 4 INCHES INTO THE SOIL kattallau n MATER. Prefabriaeted Washout BMt-10anlaYbre • Install and locate according to the manufacturer's recommendations. Deeyied and Haled BYsterrra • Utilize and follow the design in the storm water pollution prevention plan to install the system. • Dependent upon the type of system, either excavote the pit or install the containment system. • A base shall be constructed and prepared that is free of rocks and other debris that may cause tears or punctures in the polyethylene lining. • Install the polyethylene lining. For excavated systems, the lining should extend over the entire excavation. The lining for berme" systems should be installed over the pooling ores with enough material to extend the lining over the berm or containment system. The lining should be secured with pins, staples, or other fasteners. • Place Nags, safely fencing, or equivalent to provide a barrier to construction equipment and other traffic. • Place a non —collapsing, non —water holding cover over the washout facility prior to a predicted rainfall vent to prevent accumulation of water and passible overflow of the system (optional). • Install signag. that identifies concrete washout areas. • Post signs directing contractors and suppliers to designated locations. • Where necessary, provide stable ingress and egress or alternative approach pod for concrete washout systems. MBi1te11Bllt6 • Inspect daily and after each darn event. • Inspect the integrity of the overall structure including, where applicable, the containment system. • Inspect the system for leaks, spills, and tracking of soil by equipment. • Inspect the polyethylene lining for failure, including tears and punctures. • Once concrete wastes harden, re vse and dispoof the material. • Excess concrete should be re ovedwhen the washout system reaches 50 percent of the design capacity. Use of the system should be discontinued until appropriote measures can be initiated to clean the structure. Prefabricated systems should also utilize this criterion, unless the manufacturer has alternate Aped [cations, oa n • Upon v I of the solids, inspect the structure. Repair the structure as needed or construct a new system. • Dispose of all concrete in a legal manner. Reuse the material on site, recycle, or haul the material to an approved construction demolition landfill site. Recycling of material is encouraged. The waste material can be used far multiple applications including but not limited to roadbeds and building. The availability for recycling should be checked locally. • The plastic liner should be replaced after every cleaning; the removal of material will usually damage the lining. • The concrete washout system should be repaired or enlarged as necessary to maintain capacity for anarete waste. • Concrete washout system are designed to promote evaporation. However, if the liquids do not evaporate and the system n a c pacify it may be necessary to vacuum or remove the liquids and dispose of them in an acceptable rmethod. Disposal may be allowed at the local sanitary sewer a..badly provided their National Pollutant Discharge Elimination System permits allow for acceptance of this material. Another option and be to utilize a secondary containment system or basin for further dewale"ng. • Prefabricated units are often pumped and the company supplying the unit provides this service. • Inspect construction activities on regular basis to en suppliers, contractors, and others are utilizing designated washout areas. If concrete waste is being disposed of improperly, identify the violators and lake appro riate ad • When pconcrelet washout system no longer required, the concrete washout systems shall be closed. Dispose of all hardened concrete nand other materials used to construct the system. • Holes, depressions and other land disturbances associated with the system shoud be backflled, graded, and stabilized. CONCRETE WASHOUT DETAIL 01 NO SCALE POLYPROPYLENE GEOTE%TILE TUBE RULED WITH MULCH, O(PAVEMMM COIR HBER,OR O HER REC CLED WOOD PRODUC S. (PAVEMENT) SPNDRAGS OR HEAVY BLOCKS. NOTES: 1. ALL MATERIALS ARE i0 BE PREPARED AND INSTALLED PER MANUFACTURER'S SPECIHCATIONS. 2. A R MEDIA SHALL MEET OR EXCEED APPLICATION REQUIREMENTS. 3. N IS THE CONTRACTORS RESPONSIBIIRY i0 DETERMINE THE NUMBER AND LOCATIONS OF SANDBAGS NEEDED PER SITE CONDHONS. 4. CONTRACTOR SHALL PERFORM REGULAR MAINTENANCE ON SEDIMENT BARRIER INCLUDING REMOVAL OF EXCESSIVE SEDIMENT, REPOSITIONING OR ADDING SANDBAGS AS NEEDED, AND POSSIBLE REPLACEMENT OF SEDIMENT BARRIER AS USED TUBES WEAR OUT. Ghent Name& Adtlress ANDERSON + BOHLANDER 1054 VIRGINIA AVE SUITE 210 INDIANAPOLIS, IN 46203 (317) 319-2264 ANDERSONBOHLANDER.COM rdI N M CD co WIT rJ LU �N Ili U V/ J Q H W 0 r O U Z /O V/ O C0 W W U2 SEDIMENT CONTROL TUBE NO SCALE ora EJW Sheet cneacee ay. BJH oaw. mnsnozA C 410 sire. rr=10