National Dam Inspection Program. Milburn Spring Reservoir (NDI ID Number PA-00239, DER ID Number 5-7), Susquehanna River Basin, Unnamed Tributary of Cumberland Valley Run, Bedford County, Pennsylvania. Phase I Inspection Report,
Abstract
Milburn Spring Dam is an offstream reservoir which receives flow through pipelines fed from adjacent springs. An 18-inch corrugated metal pipe near the right abutment constitutes the outflow facilities for the dam. Although no perennial stream discharges into the reservoir, it is estimated that during severe storm conditions, the reservoir may receive discharge from a watershed of approximately 14 acres. Based on this potential watershed, the adequacy of the spillway to pass the recommended spillway design flood of full to half probable maximum flood (PMF) was investigated. It was found that the spillway can pass 20 percent of the PMF without overtopping the embankment. Therefore, it is classified to be inadequate according to the recommended criteria. Because the spillway cannot pass 50 percent of the PMF without overtopping the embankment and overtopping of the embankment is considered to introduce a significant breach potential, and further that the pipe primary spillway is highly vulnerable to blockage during the passage of severe storms, the spillway capacity is considered to be seriously inadequate.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1980
- Accession Number
- ADA081546
Entities
People
- Lawrence D. Andersen