Effectiveness of BMPs (Best Management Practices) for stormwater management in urbanized watersheds
The Illinois Urban Drainage Area Simulator (ILLUDAS) has been modified for continuous simulation and a water-quality module has been added to it. The continuous simulation model updates the Antecedent Moisture Condition (AMC) based on the rainfall information up to 120 hours prior to the beginning of a storm and the information on the number of dry days between storms is utilized to compute the pollutant build-up which also depends on the street sweeping interval. The water-quality module utilizes the dust and dirt method of STORM to compute pollutant accumulated on the watershed surface. Pollutant washoff is then computed based on the assumption of first-order kinetics. Features were added to simulate the effect of BMP structures. Infiltration trenches and detention ponds were considered in the study. An optimization scheme was adopted to optimally size and locate the detention structures within the watershed.
- Research Organization:
- Virginia Polytechnic Inst. and State Univ., Blacksburg (USA). Virginia Water Resources Research Center
- OSTI ID:
- 5246686
- Report Number(s):
- PB-88-167309/XAB; VPI-VWRRC-Bull-159
- Country of Publication:
- United States
- Language:
- English
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POLICY AND ECONOMY
RAIN WATER
RUNOFF
WATER POLLUTION
STORMS
URBAN AREAS
MATHEMATICAL MODELS
DROUGHTS
MOISTURE
OPTIMIZATION
VIRGINIA
WATERSHEDS
DISASTERS
ENVIRONMENTAL TRANSPORT
FEDERAL REGION III
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