At head of title: National Cooperative Highway Research Program.

"Presents and compares all major stormwater/runoff control strategies ; New data on pollutant removal efficiencies, design, costs, environmental impacts and more ; Where and why to use the best techniques for limiting/monitoring diffuse pollution ; Provides the tools to meet regulations and improve water quality in urban/suburban watersheds"--From publisher's description.

The infiltration approach to stormwater management involves the design, construction, and operation of engineered systems that infiltrate stormwater runoff into soils. These systems, referred to as "infiltration best management practices (BMPs)," are intended to reduce the volume of stormwater runoff and associated pollutants that discharge to stormwater systems and receive waters via surface runoff. The TRB National Cooperative Highway Research Program's NCHRP Research Report 922: Stormwater Infiltration in the Highway Environment: Guidance Manual supports evaluation, selection, siting, design, and construction of infiltration BMPs in the highway environment. It is also intended to identify limitations on the use of infiltration and determine the need for alternative non-infiltration-based stormwater management approaches.

Introduction -- Department of Transportation research preferences -- Review of published literature and potential research needs -- Summary of identified research gaps and needs -- Master bibliography -- Appendixes.