Composite Sampling of Highway Runoff

by David L. Clark, (A.M.ASCE), Assoc. Engr.; Brown and Caldwell, Seattle, Wash.,
B. W. Mar, (M.ASCE), Prof.; Dept. of Civ. Engrg., Univ. of Washington, Seattle, Wash.,
J. Ferguson, (M.ASCE), Prof.; DEpt. of Civ. Engrg., Univ. of Washington, Seattle, Wash.,
R. Asplund, Research Assistant; Dept. of Civil Engrg. Univ. of Washington, Seattle, Wash.,


Serial Information: Journal of the Environmental Engineering Division, 1981, Vol. 107, Issue 5, Pg. 1067-1081


Document Type: Journal Paper

Abstract: A device has been developed to measure and to make a composite sample of stormwater runoff from highways. The device was laboratory calibrated and field tested on a portion of Interstate-5 in Seattle, Washington. Performance of the composite sampling device has been compared with conventional discrete sampling instruments. The major discrepancies between the two systems are due to laboratory and flow measurement errors. When these errors are resolved, the performance of the composite and discrete systems are almost identical.

Subject Headings: Composite materials | Highways and roads | Runoff | Flow measurement | Errors (statistics) | Stormwater management | Calibration | Field tests

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