National Dam Inspection Program. Lake of the Four Seasons Dam (NDS-ID Number PA-568, DER-ID Number 40-225) Susquehanna River Basin, Oley Creek, Luzerne County, Pennsylvania. Phase I Inspection Report,
Abstract
The Lake of the Four Seasons Dam consists of two earthfill impounding structures. The main embankment (dam) is an earthfill dam, 1500 feet long and 29 feet high. At the left abutment of the main embankment (dam) are two spillways. One spillway consists of a concrete culvert type spillway, modified to function as an orifice. Immediately adjacent to the concrete structure at the left abutment is an open earth cut channel which serves as a temporary auxiliary spillway for the dam. The second impounding structure (dike) is located approximately 1/2 mile southwest of the main embankment. The dike is approximately 600 feet long, and 26 feet high. A permanent concrete ogee spillway is located approximately 500 feet southwest of the dike on the left abutment. The spillway and reservoir are capable of controlling approximately 54% of the PMF. Definitions used by the Corps of Engineers indicate that the spillway should be rated as inadequate. However, the temporary and permanent (as designed) auxiliary spillway has the potential for erosion of the exit channel and subsequent erosion of the toe of dam. It is possible that a failure of the dam could result at less than 1/2 PMF by erosion of the embankment toe.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1980
- Accession Number
- ADA091266
Entities
People
- R. Jeffrey Kimball