Salt Creek at Roca, Nebr


Study Reach.--Section 1 is 75 ft downstream from gage.

Gage Location.--Lat 40°39'33", long 96°39'39", in SW1/4 sec.17, T.8N., R.7E., on left bank 15 ft downstream from highway bridge at west edge of Roca.

Drainage Area.--174 sq mi.

Gage Datum and Elevations of Reference Points.--Not available.

Stage, Discharge Measurements and Computed n-Values.--Gage heights were 16.02 ft at gage; 15.94 ft at section 1. Peak discharges was 1,860 cfs. on May 2, 1954.

Date of Observation Discharge (ft3/s) Average Cross Section Area (ft2) Hydraulic Radius (ft) Mean Velocity (ft/s) Slope Coefficient of Roughness n
5/2/1954 1853.2 506.0 6.28 3.66 0.000560 0.030

Description of Channel.--Bed consists of sand and clay. Banks are generally smooth and are free of vegetal growth during floods.

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Page Last Modified: December 19, 2012