National Dam Inspection Program Loomis Lake Dam Ndi Number Pa 00048 Pennder Number 58 127 Susquehanna River Basin Unnamed Tributary To Hop Bottom Creek Susquehanna County Pennsylvania Phase I Inspection Report
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| Total Pages | : 86 |
| Release | : 1981 |
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Loomis Lake Dam is located on an unnamed tributary to Hop Bottom Creek in Bridgewater Township, Susquehanna County, Pennsylvania, approximately 3.4 miles east of Montrose. The reservoir slopes are moderate with a good growth of ground cover. A small amount of sedimentation was present in the upper portion of the reservoir. One home and one garage are located downstream of the dam. Loss of life may occur in the event of a dam failure. In addition, the township road may suffer economic damage.
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| Total Pages | : 1314 |
| Release | : 1982 |
| Genre | : Science |
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| Total Pages | : 1220 |
| Release | : 1982 |
| Genre | : Research |
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Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
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| Total Pages | : 1016 |
| Release | : 1982 |
| Genre | : Government reports announcements & index |
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| Author | : John A. Dziubek |
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| Total Pages | : 72 |
| Release | : 1981 |
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Hathaway Pond Dam is located in Ararat Township, Susquehanna County, Pennsylvania. The reservoir was originally created to provide water for power purposes. The reservoir slopes are moderate with a good cover of vegetation. There are three ponds upstream from Hathaway Pond Dam on two tributary streams. The western stream contains Romobe Lake (PennDER I.D. No. 58-10) which is 1750 feet upstream from Hathaway Pond Dam. The eastern tributary contains Ball Lake and an unnamed smaller pond in series. Ball Lake is 2450 feet upstream and will retain considerable storage while the smaller unnamed pond was considered to have no effect on Hathaway Pond Dam. Two homes, a trailer, and township road are located 1800 feet downstream from Hathaway Pond Dam. These could suffer economic damage in the event of a dam failure.
| Author | : Lawrence D. Andersen |
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| Total Pages | : 64 |
| Release | : 1981 |
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Lake Walter Dam is located on Spring Run, approximately one mile upstream of its confluence with Meshoppen Creek in Springville Township, Susquehanna County, Pennsylvania. The condition of Lake Walter Dam is considered to be good. The only significant condition noted which requires further attention is the lack of erosion protection in the emergency spillway discharge channel. The swampy condition at the toe of the dam is not considered to be significant at this time; however, the condition should be monitored to document if seepage is developing.
| Author | : Frederick Futchko |
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| Total Pages | : 86 |
| Release | : 1979 |
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The dam consists of a zoned, earthfill embankment that is 590 feet long and 52 feet high at its maximum section. The main spillway is a drop spillway located near the right abutment of the dam. It consists of a concrete riser connected to a 30-inch diameter reinforced concrete pipe under the embankment. The auxiliary spillway is an excavated channel along the left abutment of the dam. It is a grass-linked excavation in earth. Based on visual inspection, available records, calculations and past operational performance, PA-467 Dam is judged to be in good condition. The existing spillway can pass the Probable Maximum Flood(PMF) without overtopping of the dam. The spillway capacity is rated as adequate. There is a slope stability analysis for the embankment, and it indicates that the embankment has adequate factors of safety. There is no evidence of significant problems threatening the embankment.
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| Total Pages | : 70 |
| Release | : 1981 |
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The condition of Bel-Air Lake Dam is considered to be unsafe/ nonemergency due to a seriously inadequate spillway capacity. The overall condition of the dam is considered to be fair. Although at this time no signs of significant distress were observed, it appears that the center of the dam has significantly settled. The design drawings show the design freeboard to be five feet, but the available freeboard is only approximately two feet. It also appears that fill has been placed on the downstream slope, increasing the crest width from the design value of 10 feet to about 30 feet near the center line of the dam and greater than 50 feet near the left abutment. The dam has no functional low level outlet facility.
| Author | : BAKER (MICHAEL) JR INC BEAVER PA. |
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| Total Pages | : 85 |
| Release | : 1981 |
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Page's Lake Dam is owned and operated by the Lakeside Outing Club and is classified as a 'Significant' hazard - 'Intermediate' size dam. The dam was found to be in good overall condition on 27 October 1980. Hydraulic/hydrologic evaluations, performed in accordance with procedures established by the Baltimore District, Corps of Engineers, for Phase I Inspection Reports, revealed that the spillway will not pass the 1/2 Probable Maximum Flood (1/2 PMF) without overtopping the dam. A spillway design flood (SDF) in the range of the 1/2 PMF to the Probable Maximum Flood (PMF) is required for Page's Lake Dam. The 1/2 PMF was chosen as the SDF because the dam is on the low end of the 'Intermediate' size category in terms of storage. During the 1/2 PMF, the dam is overtopped by a maximum depth of 3.34 feet for a total duration of 11.83 hours. The spillway is therefore considered 'Inadequate.' It is recommended that the owner immediately initiate an engineering study to further evaluate the spillway capacity and develop recommendations for remedial measures to reduce the overtopping potential of the dam.
| Author | : Bernard M. Michalcin |
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| Total Pages | : 117 |
| Release | : 1980 |
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Based on a visual inspection, operational history, and available engineering data, the facility is considered to be in good condition. The size classification of the facility is intermediate and its hazard classification is considered to be high. In accordance with the recommended guidelines, the Spillway Design Flood (SDF) for the facility is the PMF (Probable Maximum Flood). Results of the hydrologic and hydraulic analysis indicate the facility will pass and/or store only about 45 percent of the PMF prior to embankment overtopping. A breach analysis indicates that failure under less than 1/2 PMF conditions could lead to increased downstream damage and potential for loss of life. Thus, based on screening criteria provided in the recommended guidelines, the spillway is considered to be seriously inadequate and the facility unsafe, non-emergency. Calculations also indicate that if the spillway were constructed in accordance with available desing drawings, the facility could pass and/or store approximately 63 percent of the PMF.
