Rolling Fork near Boston, Ky


Study Reach.--Section 1 is 650 ft upstream from gage.

Gage Location.--Lat 37°46'02", long 85°42'14", on downstream side near center of span of bridge on U.S. Highway 62, 0.4 mile downstream from Beech Fork and 2.3 miles southwest of Boston, Nelson County.

Drainage Area.--1,299 sq mi.

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

Stage, Discharge Measurements and Computed n-Values.--Gage heights were 26.30 ft at gage; 26.63 ft at section 1. Peak discharges was 6,094 cfs. (5,770 cfs. in main channel and 324 cfs. in right overflow channel) on Mar. 11, 1949.

Date of Observation Discharge (ft3/s) Average Cross Section Area (ft2) Hydraulic Radius (ft) Mean Velocity (ft/s) Slope Coefficient of Roughness n
3/11/1949 325.8 603.3 4.85 0.54 0.000158 0.097
3/11/1949 5780.2 2428.7 15.45 2.38 0.000158 0.046

Description of Channel.--Main channel bed is clay and silt. Both banks are lined with overhanging trees. Right over flow channel is rather uniform with fairly dense stand of trees as much as 6 inches in diameter.

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Page Last Modified: December 19, 2012