National Dam Inspection Program. Jeannette Dam (NDSI.D.-PA-00486), (PennderI.D.-65-9), Ohio River Basin, Unnamed Tributary to Brush Creek, Westmoreland County, Pennsylvania. Phase I Inspection Report.
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Jeannette Dam is a 36-foot high earth dam approximately 480 feet in length. The dam impounds a small 10-acre reservoir locally known as Mountain Valley Lake. The facility is equipped with a small concrete and masonry spillway located approximately 35 feet upstream of the embankment along the western shore of the lake. The spillway discharges into a trapezoidal-shaped diversion channel which parallels the western shore. A historical report indicates that the diversion channel, approximately 1500 feet in length, was designed to divert all stream inflow completely around the reservoir and that water was piped to the reservoir from other impoundments. Jeannette Dam is located across a small branch of Brush Creek approximately 2.5 miles west of Greensburg, in Hempfield Township, Westmoreland County, Pennsylvania.
- Civil Engineering