Middle Fork Vermilion River near Danville, Ill


Study Reach.--Section 1 is 30 ft downstream from bridge.

Gage Location.--Lat 40°08', long 87°45', in NE1/4 SW1/4 sec.5, T.19N., R.12W., at downstream side of bridge in Kickapoo State Park.

Drainage Area.--417 sq mi.

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

Stage, Discharge Measurements and Computed n-Values.--Gage heights were 549.20 ft at gage; 549.13 ft at section 1. Peak discharges was 1,620 cfs on May 1, 1956.

Date of Observation Discharge (ft3/s) Average Cross Section Area (ft2) Hydraulic Radius (ft) Mean Velocity (ft/s) Slope Coefficient of Roughness n
5/1/1956 1632.1 378.7 3.22 4.31 0.003100 0.037

Description of Channel.--Bed is gravel and small cobbles. Banks are lined with trees and small underbrush.

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Page Last Modified: December 19, 2012