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.

reportActive / Technical Report | Accession Number: ADA070831 | Open PDF

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.

Author(s):
No Author(s) Identified
Author Organization(s):
BAKER (MICHAEL) JR INC BEAVER PA
Supplementary Note:
Original contains color plates: All DDC reproductions will be in black and white.
Pagination:
0092

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Contract/Grant Number(s):
DACW31-79-C-0011
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.3_Planning; JCA_5.3.1_Analyze Problem; JCA_6.4.1_Secure Information Exchange; JCA_6_Net Centric; JCA_6.4_Information Assurance; JCA_4.6_Engineering; JCA_4.3_Maintain; JCA_6.1.3_Switching and Routing; JCA_6.1_Information Transport
Communities of Interest:
Human Systems
Descriptor(s):
*EARTH DAMS, DAMAGE, LEAKAGE(FLUID), DEFICIENCIES, VISUAL INSPECTION, FLOODING, RESERVOIRS, PENNSYLVANIA
Field(s)/Group(s):
Civil Engineering
Keyword(s):
*Little Shenango Dam
Report Date:
1979 Apr 01