National Dam Inspection Program. Kehly Run Dam Number 3 (NDS ID Number PA-657 DER ID Number 54-17) Susquehanna River Basin, Kehly Run, Schuylkill County, Pennsylvania. Phase I Inspection Report,
KIMBALL (L ROBERT) AND ASSOCIATES EBENSBURG PA
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Kehly Run Dam No. 3 is an earth and rockfill dam 442 feet long and approximately 33 feet high. The spillway is an open cut channel located on the left abutment. The spillway crest has a total length of 35 feet and has an irregular bottom. Immediately downstream of Kehly Run Dam No. 3 is a swimming pool which forms tailwater on the dam. This swimming pool is formerly Kehly Run Dam No. 2. Upstream of Kehly Run Dam No. 3 are three reservoirs Kehly Run Dams No. 4, 5, 6. Kehly Run Dam No. 3 appears to be in fair condition. Several areas of possible past instability are apparent on the downstream slope. In addition, extensive seepage areas have been reported in the past but may be obscured by the tailwater. Maintenance of the dam and operating facilities is considered poor. The spillway design flood is the PMF probable maximum flood. The spillway and reservoir are capable of controlling approximately 17 of the PMF without overtopping the embankment.
- Civil Engineering