Accession Number:

ADA070831

Title:

National Dam Inspection Program. Little Shenango Dam (NDI ID Number PA-00246, PennDER Number 43-54), Ohio River Basin, Calvin Clark Run, Mercer County, Pennsylvania. Phase I Inspection Report.

Descriptive Note:

Corporate Author:

BAKER (MICHAEL) JR INC BEAVER PA

Personal Author(s):

Report Date:

1979-04-01

Pagination or Media Count:

92.0

Abstract:

Little Shenango Dam PA 490 is a homogeneous earth floodwater retarding dam designed by the U.S. Department of Agriculture, Soil Conservation Service. The dam has a crest length of 430 feet, a maximum height of 45 feet, a storage volume of 472 acre-feet at spillway crest level, and a storage volume of 19 acre-feet at normal pool level. The dam was found to be in generally poor condition at the time of inspection. The inspection did disclose potential problems with seepage and piping in the dam embankment and abutments. A detailed engineering investigation of seepage, piping, erosion, and structural stability of the dam should be initiated as expeditiously as possible. Hydraulichydrologic evaluations revealed that the spillway will pass the Probable Maximum Flood PMF without overtopping the dam. The spillway is therefore considered adequate.

Subject Categories:

  • Civil Engineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE