Download the entire Volume 3 Criteria Manual - Urban Drainage ...
Download the entire Volume 3 Criteria Manual - Urban Drainage ... Download the entire Volume 3 Criteria Manual - Urban Drainage ...
T-10.2 Concrete Grid Pavement Designing for Maintenance Recommended ongoing maintenance practices for all BMPs are provided in Chapter 6 of this manual. During design, the following should be considered to ensure ease of maintenance over the long-term. These items are in addition to the items provided on BMP Fact Sheet T-10: • A concrete perimeter is recommended for this pavement. This will reduce movement and grinding between blocks. Local Installation The concrete grid pavement parking site was one of UDFCD's first stormwater monitoring sites. This site was constructed in 1994 and monitored with and without a layer of ASTM C-33 sand to provide filtration. Through our work at this site and the data collected, UDFCD learned the following: Benefits • Concrete blocks can be removed and replaced back if utility cuts or other patches are required. • Concrete grid pavement maintains infiltration rates well. Limitations • Concrete Grid Pavement does not meet ADA requirements for accessible paths. • A filter layer (such as ASTM C-33 sand or CDOT Class C filter material) is required to achieve adequate pollutant removal. • A concrete perimeter barrier will increase the lifespan of the concrete blocks. • Concrete blocks can be removed and reused. Photograph CGP-2. The Lakewood concrete grid pavement installation was one the first permeable pavement stormwater monitoring sites constructed by UDFCD. This photo was taken following construction in 1994. CGP-2 Urban Drainage and Flood Control District October 2010 Urban Storm Drainage Criteria Manual Volume 3
Pervious Concrete T-10.3 This BMP Fact Sheet was removed in January 2013. UDFCD does not recommend pervious concrete at this time. Additional information is provided in a memorandum available at www.udfcd.org (Ken MacKenzie, January 2013) January 2013 Urban Drainage and Flood Control District PC-1 Urban Storm Drainage Criteria Manual Volume 3
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- Page 268 and 269: T-12 Outlet Structures Orifice Plat
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Pervious Concrete<br />
T-10.3<br />
This BMP Fact Sheet was removed in January 2013. UDFCD does not recommend pervious concrete at<br />
this time. Additional information is provided in a memorandum available at www.udfcd.org (Ken<br />
MacKenzie, January 2013)<br />
January 2013 <strong>Urban</strong> <strong>Drainage</strong> and Flood Control District PC-1<br />
<strong>Urban</strong> Storm <strong>Drainage</strong> <strong>Criteria</strong> <strong>Manual</strong> <strong>Volume</strong> 3
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