National Dam Inspection Program. Milltown Dam (NDI Number PA-00218, DER Number 15-146), Delaware River Basin, Chester County, Pennsylvania. Phase I inspection Report

reportActive / Technical Report | Accession Number: ADA109108 | Open PDF

Abstract:

Based on the visual inspection, past performance and the available engineering data, the dam its appurtenant structures appear to be in poor condition. The Spillway is considered to be seriously inadequate, and the facility is classified as unsafe, non-emergency. The following are among the recommendations presented for immediate action by the owner 1 That, in lieu of improving the facilities, the embankment be breached after obtaining a permit from the Bureau of Dam Safety, Obstruction and Storm Water Management, Pennsylvania Department of Environmental Resources 2 That a detailed hydrologic and hydraulic engineering analysis be made by a professional engineer with experience in the design and construction of dams to determine means for providing adequate spillway capacity and 3 That the upstream and downstream slopes and the crest be cleared of all trees, brush and debris under thee supervision of a professional engineer experience in the design and construction of dams. The embankment shall be provided with an adequate protective cover and be maintained on a regular basis. Author

Author(s):
Jongsma, Hendrik
Author Organization(s):
BERGER ASSOCIATES INC HARRISBURG PA
Supplementary Note:
Original contains color plates: All DTIC and NTIS reproductions will be in black and white DOI: 10.21236/ADA109108
Pagination:
0099

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Contract/Grant Number(s):
DACW31-81-C-0013
Monitor Series:
COE/MD/BD
 Subject Terms
Joint Capability Areas:
JCA_4.6_Engineering; JCA_4.6.1_General Engineering; JCA_5_Command and Control; JCA_5.3_Planning; JCA_6.1.3_Switching and Routing; JCA_6_Net Centric; JCA_6.1_Information Transport; JCA_4.3_Maintain; JCA_4.2_Supply; JCA_4.2.3_Manage Global Supplier Networks; JCA_6.2.3_Core Enterprise Services; JCA_8.2_Shape; JCA_8_Building Partnerships
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*EARTH DAMS, STABILITY, HYDROLOGY, DEFICIENCIES, SAFETY, VISUAL INSPECTION, FLOODING, RESERVOIRS, PENNSYLVANIA
Field(s)/Group(s):
Hydrology, Limnology and Potamology, Civil Engineering
Keyword(s):
*Milltown Dam, National Dam Inspection Program
Report Date:
1981 Jul 01