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Division 2 - Technical Provisions, IRC -2022 <br />2. Installation: Install per the manufacture's recommendations and as specified herein. <br />In general, install the silt fence in a manner that allows it to stop the water long <br />enough for the sediment to settle while the water passes through the silt fence fabric. <br />All supporting posts shall be on the down-slope side of the fencing. Place the bottom <br />of the fabric 6 -inches minimum, under compacted soil to prevent the flow of <br />sediment underneath the fence. Place silt fences away from the toe of slopes. <br />Otherwise, work shall conform to Section 104 of the Florida Department of <br />Transportation Standard Specifications for Road and Bridge Construction. <br />3. Product: All material shall be new and unused. Use FDOT Types III through IV silt <br />fences where large sediment loads are anticipated, where slopes are 1:2 (vertical: <br />horizontal) or steeper, or as directed by the ENGINEER; otherwise use FDOT Type II <br />silt fence. <br />C. Turbidity Barriers: <br />1. General: Use turbidity barriers to control sediment contamination of rivers, lakes, <br />ponds, canals, etc. <br />2. Installation: Install per the manufacturer's recommendations and per Section 104 of <br />the Florida Department of Transportation Standard Specifications for Road and <br />Bridge Construction unless directed otherwise by the ENGINEER. <br />3. Product: All material shall be new and unused. The turbidity barrier shall be a <br />pervious barrier and the fabric color shall be yellow. Use staked turbidity barriers in <br />water less than one -foot deep. Use floating turbidity barriers in water one -foot or <br />deeper. <br />D. Sedimentation Control From Dewatering or Pumping Operations Using Filter Bags: <br />1. Filter bags shall be manufactured using a polypropylene non -woven geotextile and <br />sewn by a double -needle machine, using a high strength nylon thread. The bag shall <br />have a fill spout large enough to accommodate a 4 -inch pump discharge hose. Straps <br />shall be attached to the bag to secure the hose and prevent pumped water from <br />escaping without being filtered. <br />2. Installation: Install in accordance with the manufacturer's specifications. Use as <br />many filter bags as required, at no additional cost to the OWNER. Legally dispose of <br />the bags offsite, at no cost to the OWNER. If the bags are placed on aggregate to <br />facilitate filtration efficiency, do not use limerock aggregate — use non -calcareous <br />rock. <br />3. Product: The filter bag shall be supplied with lifting straps. <br />a. "DIRTBAG 53 or 55 as applicable," supplied by ACF Environmental, Inc. (1-800- <br />448-3636). <br />b. "DANDY DEWATERING BAG" supplied by Dandy Products, Inc. (1-800-591-2284). <br />c. Or equivalent. <br />E. Curb Inlet Protection: <br />1. Filter stormwater before it enters curb inlets. <br />2. Installation: Install in accordance with the manufacturer's specifications. Use as <br />many of the specified filtration devices as required, at no additional cost to the <br />OWNER. <br />Division 2 — Technical Provisions - 01025-9 <br />R\Public Works\ENGINEERING DIVISION PROJECTS\2022 4th St Culvert Replacement at 90th Ave\1-Admin\Bids\Bid Documents\DIV 2 TECHNICAL PROVISIONS - <br />20201118.docx — <br />