Accession Number:
ADA101258
Title:
National Dam Inspection Program. Perrins Marsh Dam (NDI I.D. PA-0886, DER I.D. 066-005), Susquehanna River Basin Whitelock Creek, Wyoming County, Pennsylvania. Phase I Inspection Report,
Descriptive Note:
Corporate Author:
D'APPOLONIA CONSULTING ENGINEERS INC PITTSBURGH PA
Personal Author(s):
Report Date:
1981-01-01
Pagination or Media Count:
55.0
Abstract:
Perrins Marsh Dam, which is also known as Browns Pond Dam or Schoonovers Lake, consists of a six-foot-high stone wall, backed by earth fill on the upstream side. In its present configuration, the dam appears to be about 50 to 60 feet long, with a 28-foot-long segment forming the overflow section of the dam. The overflow section is capped with a six-foot-wide concrete slab which appears to be about one foot thick. The earth fills flanking the overflow section gradually merge into the natural abutments with no discernible embankment-abutment junction. The dam does not appear to have any low level outlet facilities. It appears that this dam was constructed at the outlet of a natural lake to raise the lake level. The dam is classified to be in the significant hazard category. Below the dam, Whitelock Creek flows about 150 feet, falls over a stone wall, then flows under a bridge. A house located downstream of the bridge is considered to be in the floodplain of the creek. The stream flows adjacent to a rural residential area for approximately one mile, and then discharges to an essentially uninhabited valley. It is estimated that a failure of this dam would likely cause damage to the downstream bridges and property in the rural residential area. Loss of a few lives is considered possible.
Descriptors:
Subject Categories:
- Hydrology, Limnology and Potamology
- Civil Engineering