National Dam Inspection Program. Brier Crest Woods Dam. Delaware River Basin, Tributary to Tunkhannock Creek, Monroe County, Pennsylvania (NDI ID Number PA-00879, DER ID Number 45-245), Brier Crest Woods, Inc. Phase I Inspection R

摘要

Brier Crest Woods Dam is a homogeneous earthfill embankment with a toe drain. The dam, including the spillway, is 790 feet long and is 16 feet high at maximum section. The spillway is located near the middle of the dam. It is a concrete gravity weir with a concrete exit channel apron. The spillway crest is 25 feet long and is 5.0 feet below the design top elevation of the dam. The outlet works consists of a 12-inch diameter corrugated metal pipe in the spillway weir with a sluice gate at the upstream end. Based on visual inspection, available records, calculations, and past operational performance, Brier Crest Woods Dam is judged to be in good condition. The existing spillway will pass the Probable Maximum Flood (PMF), which is twice the Spillway Design Flood (SDF), with 0.2 foot of freeboard. The spillway capacity is rated as adequate. No stability problems were evident for the embankment. The spillway weir meets recommended guidelines for stability.