National Dam Inspection Program. NDS I.D. Number PA-00174. DER I.D. Number 64-174. Delaware River Basin, Greene Dreher Dam, Wayne County, Pennsylvania. Phase I Inspection Report

National Dam Inspection Program. NDS I.D. Number PA-00174. DER I.D. Number 64-174. Delaware River Basin, Greene Dreher Dam, Wayne County, Pennsylvania. Phase I Inspection Report
Author: WOODWARD-CLYDE CONSULTANTS PLYMOUTH MEETING PA.
Publisher:
Total Pages: 78
Release: 1979
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ISBN:

Greene-Dreher Dam is a 20-foot high earthern embankment, 1,000 feet long which impounds a 152 acre-foot flood water retention pool. Total estimated volume of fill is approximately 30,000 cubic yards. The zoned embankment was constructed on natural soils without a cutoff trench or a grout curtain. The embankment contains three material zones; Zone 1, a relatively impervious core of silt and and silty sand; Zone 2, composed of silty gravel and silty sand; and an outer shell of Zone 3 material, described as rock larger than 6 inches in diameter. The embankment crest is 12 feet wide at a design settled elevation of 2,036 feet, and both upstream and downstream slopes are 3H:1V. The downstream section of the embankment contains a filter blanket approximately 2 feet thick, 30 feet wide and 320 feet long. The filter blanket is drained by a 6-inch diameter perforated corrugated metal pipe connected to a 6-inch diameter pipe which outlets adjacent to the principal spillway outlet.

National Dam Inspection Program. Freethy Dam (NDI ID Number PA-00171, DER ID Number 64-160), Delaware River Basin, Carley Brook, Wayne County, Pennsylvania. Phase I Inspection Report

National Dam Inspection Program. Freethy Dam (NDI ID Number PA-00171, DER ID Number 64-160), Delaware River Basin, Carley Brook, Wayne County, Pennsylvania. Phase I Inspection Report
Author: Frederick Futchko
Publisher:
Total Pages: 91
Release: 1981
Genre:
ISBN:

Based on the criteria established for these studies, Freethy Dam is judged to be unsafe, nonemergency, because the spillway capacity is seriously inadequate. The recommended Spillway Design Flood (SDF) for the size and hazard classification of the dam varies between 1/2 of the Probable Maximum Flood (PMF) and the PMF. Based on the size of the dam and reservoir, the 1/2 PMF is selected as the SDF. The existing spillway will pass only about 2 percent of the PMF before overtopping of the dam occurs. It is judged that the dam could not withstand the depth and duration of overtopping during storms of only 20 percent of the PMF. Failure of the dam would cause an increased hazard for loss of life downstream. Overall, the dam is judged to be in good condition.

National Dam Inspection Program. Suydam Dam, NDS ID PA 00085, DER ID 64-169 Delaware River Basin, Lollipop Creek, Wayne County, Pennsylvania. Phase I Inspection Report

National Dam Inspection Program. Suydam Dam, NDS ID PA 00085, DER ID 64-169 Delaware River Basin, Lollipop Creek, Wayne County, Pennsylvania. Phase I Inspection Report
Author: WOODWARD-CLYDE CONSULTANTS PLYMOUTH MEETING PA.
Publisher:
Total Pages: 90
Release: 1978
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Suydam Dam is a 24 foot high homogeneous earth embankment, 508 feet long and impounds a 12.1-acre reservoir. The embankment contains a downstream crushed rock trench drain discharging through a 6-inch diameter corrugated metal drain. This pipe discharges at the downstream toe. The upstream slope to elevation 1,285.0 is protected with a 12-inch riprap layer over a 12-inch filter course. The upstream and downstream slopes are 3H:1V and 2H:1V, respectively. Except for riprapped surfaces, both slopes are covered with grass and Crownvetch. The crest is 12 feet wide with a settled design elevation of 1,298.0.

National Dam Inspection Program. Cadjaw Dam, (NDS I.D. Number PA-00168, DER I.D. Number 64-10). Delaware River Basin, Wayne County, Pennsylvania. Phase I Inspection Report

National Dam Inspection Program. Cadjaw Dam, (NDS I.D. Number PA-00168, DER I.D. Number 64-10). Delaware River Basin, Wayne County, Pennsylvania. Phase I Inspection Report
Author: WOODWARD-CLYDE CONSULTANTS PLYMOUTH MEETING PA.
Publisher:
Total Pages: 89
Release: 1978
Genre:
ISBN:

Cadjaw Pond Dam is owned by the Honesdale consolidated Water Co., and was once used as an emergency water supply source for the city and surrounding area. Currently, the dam has no immediate purpose for the water company except in the extreme event that water is needed as a supplemental source. The dam is in an obvious state of disrepair and severely neglected. Further, there are a large number of unknowns concerning the overall stability of the embankment. Until such time as appropriate studies are made and needed repairs performed, the dam should be considered unsafe. Based on this, seven recommendations are presented with the anticipation that it is desired to keep the structure and reservoir in service. If there is no need to maintain this structure, or if rehabilitative costs are excessive, an alternate solution would be to breach the structure under the guidance of a Professional Engineer, and allow the water level to reach the preexisting level of the natural lake.

National Dam Inspection Program. Lake Paupackan Dam (NDI I.D. Number PA-00140, DER I.D. Number 64-33). Delaware River Basin, Lakeville, Creek, Wayne County, Pennsylvania. Phase I Inspection Report

National Dam Inspection Program. Lake Paupackan Dam (NDI I.D. Number PA-00140, DER I.D. Number 64-33). Delaware River Basin, Lakeville, Creek, Wayne County, Pennsylvania. Phase I Inspection Report
Author: GANNETT FLEMING CORDDRY AND CARPENTER INC HARRISBURG PA.
Publisher:
Total Pages: 71
Release: 1981
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Based on available records, visual inspection, calculations, and past operational performance, Lake Paupackan Dam is judged to be in fair condition. Considering the size and hazard classification of the dam, the recommended Spillway Design Flood (SDF) varies between the 1/2 Probable Maximum Flood (PMF) and the PMF. The 1/2 PMF was, in this case, selected as the SDF. The spillway and reservoir, under existing conditions, will pass approximately 19 percent of the PMF before overtopping of the dam occurs. The spillway is, therefore, rated as inadequate.

National Dam Inspection Program . Green Hills Dam. NDS I.D. Number Pa -00714, DER I.D. Number 6-373. Delaware River Basin, Berks County, Pennsylvania. Phase i Inspection Report

National Dam Inspection Program . Green Hills Dam. NDS I.D. Number Pa -00714, DER I.D. Number 6-373. Delaware River Basin, Berks County, Pennsylvania. Phase i Inspection Report
Author: Mary F. Beck
Publisher:
Total Pages: 87
Release: 1980
Genre:
ISBN:

This report is prepared under guidance contained in the Recommended Guidelines for Safety Inspection of Dams for Phase I Investigations. The purpose of a Phase I investigation is to expeditiously identify those dams which may pose hazards to human life or property. The assessment of the general condition of the dam is based upon available data and visual inspections. Detailed investigations, testing and detailed computational evaluations are beyond the scope of the Phase I investigation; however, the investigation is intended to identify the need for more detailed studies. In reviewing this report, it should be realized that the reported condition of the dam is based on observations of field conditions at the time of inspection along with data available to the inspection team. In cases where the reservoir was lowered or drained prior to inspection, such action, while improving the stability and safety of the dam, removes the normal load on the structure and may obscure certain conditions which might otherwise be detectable if inspected under the normal operating environment of the structure.

National Dam Inspection Program. Deckers Dam (NDI ID Number PA-00299, DER ID Number 64-203), Delaware River Basin, Seeley Brook, Wayne County, Pennsylvania. Phase I Inspection Report

National Dam Inspection Program. Deckers Dam (NDI ID Number PA-00299, DER ID Number 64-203), Delaware River Basin, Seeley Brook, Wayne County, Pennsylvania. Phase I Inspection Report
Author:
Publisher:
Total Pages: 76
Release: 1981
Genre:
ISBN:

Based on visual inspection, the Deckers Dam is judged to be in good condition. The spillway capacity of Deckers Dam is rated as adequate. The unknown condition of the valve, regulating flow through the outlet pipe, precluded assessment of the outlet works. Observations during pressure flow conditions in the outlet pipe are essential to the safety evaluation of the dam. A ready access to an operable valve, or other method of drawing down the reservoir level during emergencies, is required. Although the dam and appurtenances appear to be in good repair, there is no formal maintenance program for the facility. There is no warning system and evacuation plan in effect at the present time.