Flow Simulation System

by Richard F. Lanyon, (M.ASCE), Asst. Chf. Engr.; Metropolitan Sanitary Dist. of Greater Chicago, Chicago, IL,
James Jackson, (A.M.ASCE), Sr. Civ. Engr.; Metropolitan Sanitary Dist. of Greater Chicago, Chicago, IL,

Serial Information: Journal of the Hydraulics Division, 1974, Vol. 100, Issue 8, Pg. 1089-1105

Document Type: Journal Paper


The Metropolitan Sanitary District of Greater Chicago has developed a computer program system to simulate flood flows in Chicago area waterways. The basic algorithms employed in the programming are presented. Descriptions of input data requirements and output information are presented. A comparison of results with gaging records is included. The results of various test runs of the Flow Simulation System demonstrated the program's ability to reproduce past flood events and serve as justification for using the system in the analysis and design of flood control works by the Metropolitan Sanitary District. The question of transferability from watershed to watershed is a prime consideration in evaluating hydrological models. The system has proven to meet the test of transferability in the Chicago Region. All of the results in the previous section were arrived at without modification of the programming or the constants involved.

Subject Headings: Flow simulation | Floods | Urban areas | System analysis | Watersheds | Hydrologic models | Computer software | Computer models | Chicago | Illinois | United States

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