National Dam Inspection Program. Hadley Dam (PA-489, NDI Number PA-00245, PennDER Number 43-52, SCS Number PA-489), Ohio River Basin, Morrison Run, Mercer County, Pennsylvania. Phase I Inspection Report,

reportActive / Technical Report | Accession Number: ADA072252 | Open PDF

Abstract:

Hadley Dam, a floodwater retarding dam designed by the U.S. Department of Agriculture, Soil Conservation Service SCS, is also known by its SCS number PA 489. The zoned earthfill embankment has a crest length of 750 feet, a maximum height of 51 feet, and a top width of 18 feet. The upstream side slope is 3H1V Horizontal to Vertical with a 10-foot wide berm at E1. 1108.0 feet. The downstream side slope is 2H1V with a 10-foot wide berm at E1. 1117.0 feet. A foundation drain is provided under the downstream portion of the embankment. A 4-foot wide trench was excavated in the foundation to depths varying from 3 to 10 feet. A 12-inch diameter perforated drainpipe is provided in the foundation drain with its outlet discharging into the impact basin. The principal spillway is located approximately 630 feet from the left abutment. The main features of the spillway are a pond drain, a reinforced concrete riser and a pipe conduit through the fill with an impact basin at the discharge end.

Author(s):
Chen, Chuan Yuan
Author Organization(s):
BAKER (MICHAEL) JR INC BEAVER PA
Supplementary Note:
Original contains color plates: All DDC and NTIS reproductions will be in black and white.
Pagination:
0079

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_6.4.1_Secure Information Exchange; JCA_5_Command and Control; JCA_5.3_Planning; JCA_6_Net Centric; JCA_6.4_Information Assurance; JCA_4.3_Maintain; JCA_4.6_Engineering; JCA_1.2_Force Preparation; JCA_1_Force Support; JCA_6.1.3_Switching and Routing
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*STRUCTURAL ANALYSIS, *INSPECTION, *EARTH DAMS, MAINTENANCE, HYDROLOGY, GEOLOGY, EROSION, SAFETY, VISUAL INSPECTION, CIVIL ENGINEERING, FLOOD CONTROL, PENNSYLVANIA, SEEPAGE
Field(s)/Group(s):
Civil Engineering
Keyword(s):
*National Dam Inspection Program, *Hadley Dam (PA 489), Spillways
Report Date:
1979 Jul 01