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|Title:||Scour protection for Morgantown Dam, Monongahela River, West Virginia : hydraulic model investigation|
|Authors:||United States. Army. Corps of Engineers. Pittsburgh District.|
Hite, John E.
|Publisher:||Hydraulics Laboratory (U.S.)|
Engineer Research and Development Center (U.S.)
|Series/Report no.:||Miscellaneous paper (U.S. Army Engineer Waterways Experiment Station) ; HL-89-4.|
Abstract: Morgantown Lock and Dam is a navigation project on the Monongahela River 102 miles from the mouth of the river in West Virginia. The project consists of a spillway section with six 60-ft-wide gates, a modified flip-type stilling basin for energy dissipation, and an 84- by 600-ft lock. Model tests were conducted on a 1:25-scale model of the spillway and stilling basin to determine sizing and configuration of materials necessary to protect the area immediately downstream from the stilling basin from additional scour. Numerous types of scour protection plans were tested from graded riprap to a secondary stilling basin. Initially, a scour protection plan consisting of a secondary stilling basin was developed for flow conditions with a normal upper pool, minimum project tailwater, and one gate fully open. These conditions were representative of those that could occur during ice or debris passage, malfunction of a gate, a navigation accident, or vandalism. This plan was not feasible since it would be too expensive and would require dewatering of the project to construct. Tests were then conducted to develop scour protection consisting of barges filled with riprap and grouted. Several designs were tested, none of which provided satisfactory flow conditions and adequate scour protection. The model results provided options of the scour protection desired based on certain hydraulic flow conditions.
|Rights:||Approved for public release; distribution is unlimited.|
|Appears in Collections:||Miscellaneous Paper|