National Dam Inspection Program Robinson Dam Ndi Id Number Pa 00165 Der Id Number 64 126 Delaware River Basin Tributary Of Middle Creek Wayne County Pennsylvania Phase I Inspection Report
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| Author | : CORPS OF ENGINEERS BALTIMORE MD BALTIMORE DISTRICT. |
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| Total Pages | : 76 |
| Release | : 1981 |
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Contents: Brief Assessment of General Condition and Recommended Action; Project Information; Engineering Data; Visual Inspection; Operational Procedures; Hydrology and Hydraulics; Structural Stability; Assessment, Recommendations, and Proposed Remedial Measures; Appendices.
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| Total Pages | : 212 |
| Release | : 1981 |
| Genre | : Science |
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| Author | : CORPS OF ENGINEERS BALTIMORE MD BALTIMORE DISTRICT. |
| Publisher | : |
| Total Pages | : 100 |
| Release | : 1981 |
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The visual inspection and review of available design and construction information indicate that Lake Quinn Dam is in fair condition. Deficiencies noted during the inspection included the lack of functional drawdown facilities and minor seepage through the masonry near the right abutment. Based on the size and hazard classification of the dam, the recommended Spillway Design Flood (SDF) varies between 1/2 the Probable Maximum Flood (PMF) and the PMF. The 1/2 PMF has been selected as the SDF due to the size of the dam and reservoir, and the downstream conditions. The hydrologic and hydraulic computations indicate that the combination of reservoir storage and spillway discharge capacity will pass only 3 percent of the PMF without overtopping the dam. Overtopping the dam could cause failure, which would lead to a significant increase in downstream loss of life and property damage. Therefore, the spillway for Lake Quinn Dam is considered to be seriously inadequate, and the dam is judged to be unsafe, non-emergency.
| Author | : CORPS OF ENGINEERS BALTIMORE MD BALTIMORE DISTRICT. |
| Publisher | : |
| Total Pages | : 66 |
| Release | : 1981 |
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The visual inspection and review of available design and construction information indicate that Bronson Pond Dam is in fair condition. The primary deficiency noted during the inspection was the lack of any spillway or outlet facilities for the dam. Based on the size and hazard classification of the dam, the recommended Spillway Design Flood (SDF) varies between the 100-year flood and one-half the Probable Maximum Flood (PMF). Based on the size of the dam and reservoir, and the downstream conditions, the 100-year flood has been selected as the SDF. The hydrologic and hydraulic computations indicate that the combinations of reservoir storage and overflow discharge capacity pass the 100-year flood without overtopping the dam. For this reason, the overflow capacity for Bronson Pond Dam is considered to be inadequate.
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| Total Pages | : 1192 |
| Release | : 199? |
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| Author | : Frederick Futchko |
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| Total Pages | : 103 |
| Release | : 1980 |
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According to criteria established for these studies, Lake Henry Dam is classified as unsafe, nonemergency, because of the seriously inadequate spillway capacity, the significant seepage, and the whirlpools that have reportedly developed previously in the lake. The recommended Spillway design Flood (SDF) for the size and hazard category of the dam is the Probable Maximum Flood (PMF). The existing spillways can pass about 19 percent of the PMF before overtopping of the dam occurs. It is judged that the dam would fail during the 1.2 PMF. Failure of the dam would increase the hazard to loss of life downstream. As a whole, the dam is judged to be in poor condition.
| Author | : Frederick Futchko |
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| Total Pages | : 68 |
| Release | : 1981 |
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Based on the criteria established for these studies, Glass Pond No. 2 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 7 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 that would occur for the 1/2 PMF. Failure of Glass Pond No. 2 Dam would cause an increased hazard for loss of life downstream. Overall, the dam is considered to be in good condition. There are several deficiencies, all of which are considered to be minor. Maintenance of the dam and its appurtenant structures is generally adequate.
| Author | : John Henry Frederick (Jr) |
| Publisher | : |
| Total Pages | : 91 |
| Release | : 1980 |
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SCS PA 476 Dam is a 46-foot-high zoned-earth embankment about 400 feet long. The principal spillway consists of a concrete drop inlet riser, 182 feet of 24 inch reinforced concrete pipe with six anti-seep collars, and an impact basin. The reservoir drain is a 12-inch corrugated metal pipe. The dam and its appurtenant facilities are considered to be in good condition. Calculations indicate that the existing spillway systems are capable of passing the Probable Maximum Flood (PMF) without overtopping. Therefore, the spillway system is considered to be adequate.
| Author | : WOODWARD-CLYDE CONSULTANTS PLYMOUTH MEETING PA. |
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| Total Pages | : 78 |
| Release | : 1979 |
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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.
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| Total Pages | : 734 |
| Release | : 1981 |
| Genre | : Science |
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