Wenatchee River at Plain, Wash


Study Reach.--Section 1 is 1,360 ft upstream from gage.

Gage Location.--Lat 47°45'50", long 120°39'30", in lot 8, sec.12, T.26N., R.17E., on left bank at Plain, 0.25 mile downstream from Beaver Creek, 7.5 miles downstream from Nason Creek, and 12 miles north of Leavenworth. Section 1 is 1,360 ft upstream from gage.

Drainage Area.--591 sq mi.

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

Stage, Discharge Measurements and Computed n-Values.--Gage heights were 12.43 ft at gage; 16.50 ft at section 1. Peak discharges was 22,700 cfs. on May 29, 1948.

Date of Observation Discharge (ft3/s) Average Cross Section Area (ft2) Hydraulic Radius (ft) Mean Velocity (ft/s) Slope Coefficient of Roughness n
5/29/1948 22687.3 2463.3 10.50 9.21 0.002358 0.037

Description of Channel.--Bed is boulders; d50 = 162 mm, d85 = 320 mm. Banks are lined with trees and bushes.

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Page Last Modified: December 19, 2012