Citation

Bradley A, Potter K, Price T, Cooper P, Steffen J, Franz D. Transp. Res. Rec. 1994; 1471: 41-46.

Copyright

(Copyright © 1994, Transportation Research Board, National Research Council, National Academy of Sciences USA, Publisher SAGE Publishing)

DOI

unavailable

PMID

unavailable

Abstract

Most counties across the United States use design storm approaches with single-event rainfall-runoff models and steady-state hydraulic models for flood analysis and design. DuPage County, Illinois, has recently adopted a different approach. A continuous simulation model, the Hydrological Simulation Program--FORTRAN model, has been used to simulate 40 years of runoff for 35 land segments that represent the variations in land cover conditions and historical precipitation across the county. Engineers use the runoff as input to the full equations model, an unsteady flow model, to simulate county streams.

RESULTS from these simulations are used to estimate flood probabilities by a new statistical technique. DuPage County has taken this new approach to deal with the complicated flood design and analysis problems that exist in its large and urbanizing watersheds.

Record URL:
http://onlinepubs.trb.org/Onlinepubs/trr/1994/1471/1471-007.pdf

Language: en

Keywords

Mathematical models; Floods; Rain; Estimation; Computer simulation; Statistical methods; Urban planning; Watersheds; FORTRAN (programming language); Hydraulic models; Hydrology; Runoff; Unsteady flow