The tracing of Rhodamine WT dye has provided time-of-travel data for waste-load allocation studies of a 42.8-mile reach of the Flint River at low flow. Dye was injected at two locations in Flint--at Utah Dam and at Grand Traverse Street. From Utah Dam to Grand Traverse Street the mean velocity of flow was 0.1 foot per second; time-of-travel was 35.3 hours. From Grand Traverse Street to Highway M-13, mean velocity was 0.7 foot per second; time-of-travel was 78.8 hours. Time-of-travel for the reach between Utah Dam and Highway M-13 was thus 114 hours. A discharge of equaled or exceeded about 90% of the time was measured at Grand Traverse Street in Flint before dye injection. (USGS)
RECORD ID: 8400647
F&G CODE: 02e; 05b
Publication
Cummings, T.R., and Miller, J.B., 1982, Time of travel of the Flint River, Utah
Dam to Highway M-13, Michigan: August 4-8, 1981: U.S. Geological Survey
Open-File Report 82-853, 21 p.
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