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Chapter 2
BMP Selection
2.0 BMP Selection Tool
To aid in selection of BMPs, UDFCD has developed a BMP selection tool (UD-BMP) to guide users of
this manual through many of the considerations identified above and to determine what types of BMPs
are most appropriate for a site. This tool helps to screen BMPs at the planning stages of development and
can be used in conjunction with the BMP-REALCOST tool described in Section 4. Simplified schematics
of the factors considered in the UD-BMP tool are provided in Figures 2-1, 2-2, and 2-3, which correspond
to highly urbanized settings, conventional developments, and linear construction in urbanized areas.
Separate figures are provided because each setting or type of development presents unique constraints.
Highly urbanized sites are often lot-line to lot-line developments or redevelopments with greater than 90
percent imperviousness with little room for BMPs. Linear construction typically refers to road and rail
construction.
Figure 2-1. BMP Decision Tree for Highly Urbanized Sites
August 2011 Urban Drainage and Flood Control District 2-13
Urban Storm Drainage Criteria Manual Volume 3