National Dam Inspection Program. Promised Land Dam (NDI-PA 00308, PA DER 52-12), Delaware River Basin, East Branch Wallenpaupack Creek, Pike County, Pennsylvania, Phase I Inspection Report.
Abstract
Promised Land Dam is an earth embankment approximately 125 feet long with a maximum height of 16 feet. The spillway is a broadcrested weir, approximately 33 feet long, located in the center of the embankment. The reservoir drain system consists of a 48 inch square conduit controlled by means of a stop-log structure. The dam impounds a 422 acre reservoir for recreation within the Promised Land State Park. Examination of the results of the hydrologic and hydraulic analyses indicates that the spillway is capable of passing 45 percent of the Probable Maximum Flood (PMF) without overtopping the embankment. Since the spillway cannot pass 50 percent of the PMF, which is the Spillway Design Flood (SDF), the spillway system is classified as 'Inadequate'. Based on visual observations made during the date of the inspection, the dam and its appurtenant structures are considered to be in fair condition. There is a low area at the top of dam near the right abutment, and bulges in the dry stone wall are evident. Seeps exist near the downstream toe on the right side of the dam. A large (50 foot high, 24 inch diameter) tree is adjacent to the downstream toe of the dam on the right side. Riprap protection to the upstream slope is missing. Some concrete surfaces have deteriorated due to spalling. (author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1979
- Accession Number
- ADA072238
Entities
Organizations
- O'Brien & Gere