National Dam Inspection Program. Macham Dam (NDI I.D. Number PA-00043 Pennder I.D. Number 8-56) Susquehanna River Basin. Wolcott Creek, Bradford County, Pennsylvania. Phase I Inspection Report

National Dam Inspection Program. Macham Dam (NDI I.D. Number PA-00043 Pennder I.D. Number 8-56) Susquehanna River Basin. Wolcott Creek, Bradford County, Pennsylvania. Phase I Inspection Report
Author: Bernard M. Mihalcin
Publisher:
Total Pages: 100
Release: 1980
Genre:
ISBN:

Macham Dam is an earth embankment approximately 19 feet high and 575 feet long, including spillway. The facility is provided with an uncontrolled, rectangular, concrete chute channel spillway located at the left abutment. The spillway is constructed with a 75-foot long, broad crested weir having a 35-foot breadth. Drawdown capability is provided by means of an 18-inch diameter reinforced concrete conduit controlled at the inlet by an 18-inch diameter sluice gate. Based on a visual inspection, operational history, and available engineering data, the dam is considered to be in fair condition. The facility will pass and/or store only about 43 percent of the PMF prior to embankment overtopping. (Author).

National Dam Inspection Program. Totem Dam (NDI I.D. Number PA-00042, PennDER I.D. Number 8-8), Susquehanna River Basin, Camps Creek, Bradford County, Pennsylvania. Phase I Inspection Report

National Dam Inspection Program. Totem Dam (NDI I.D. Number PA-00042, PennDER I.D. Number 8-8), Susquehanna River Basin, Camps Creek, Bradford County, Pennsylvania. Phase I Inspection Report
Author: Bernard M. Mihalcin
Publisher:
Total Pages: 108
Release: 1980
Genre:
ISBN:

Based on a visual inspection, operational history, and hydrologic and hydraulic analysis, the dam is considered to be in fair condition. The size classification of the facility is small and its hazard classification is considered to be high. In accordance with the recommended guidelines, the Spillway Design Flood (SDF) for the facility ranges between the 1/2-PMF (Probable Maximum Flood) and the PMF. Due to the high potential for damage to downstream structures and loss of life that could be associated with a sudden embankment breach, the SDF is considered to be the PMF. Results of the hydrologic and hydraulic analysis indicate the facility will pass and/or store only two percent of the PMF prior to embankment overtopping. The embankment has, in fact, been overtopped at least three times in the past decade. However, due to its unusual configuration, damage has been limited to scouring of the embankment and downstream roadway. Breach analyses performed in this study indicate that there are conditions for floods of less than 1/2-PMF magnitude during which the embankment could possibly fail and result in an increased potential for damage and loss of life downstream. Thus, the spillway system is considered to be seriously inadequate and the facility unsafe, non-emergency. (Author).

National Dam Inspection Program. Ridgebury Lake Dam, (NDI I.D. Number PA-00727, PennDER I.D. Number 8-57) Susquehanna River Basin, Tributary to Fall Creek, Bradford County, Pennsylvania. Phase I Inspection Report

National Dam Inspection Program. Ridgebury Lake Dam, (NDI I.D. Number PA-00727, PennDER I.D. Number 8-57) Susquehanna River Basin, Tributary to Fall Creek, Bradford County, Pennsylvania. Phase I Inspection Report
Author: Bernard M. Michalcin
Publisher:
Total Pages: 117
Release: 1980
Genre:
ISBN:

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.

National Dam Inspection Program. Saxe Pond Dam (NDI I.D. Number PA-729, DER ID Number 8-10) Susquehanna River Basin. North Branch Mehoopany Creek, Bradford County, Pennsylvania. Phase I Inspection Report

National Dam Inspection Program. Saxe Pond Dam (NDI I.D. Number PA-729, DER ID Number 8-10) Susquehanna River Basin. North Branch Mehoopany Creek, Bradford County, Pennsylvania. Phase I Inspection Report
Author: R. Jeffrey Kimball
Publisher:
Total Pages: 65
Release: 1981
Genre:
ISBN:

The dam is located approximately 2 miles northwest of the Village of Colley, Wilmot Township, Bradford County, Pennsylvania. The inspection consisted of: Visual inspection of the retaining structure, abutments and toe; Examination of the spillway facilities, exposed portion of any outlet works and other appurtenant works; Observations affecting the runoff potential of the drainage basin; and Evaluation of the downstream area hazard potential. The dam appears to be in good condition and adequately maintained. From a brief survey conducted during the inspection, it was noted that the low spot on the crest of the dam exits at the top left edge of the spillway crest. It was observed during the inspection that a new concrete cap had been placed on the structure. The concrete appeared to be in good condition. The dam was constructed with dry rubble masonry with an upstream earthfill. No concrete exists on the downstream face of the structure or on the bench located along the downstream face of the structure. The rubble masonry appeared to be in good condition and well maintained.

National Dam Inspection Program. Mill Creek Dam (NDI ID-PA-0038, DER ID-008-051) Susquehanna River Basin, Mill Creek, Bradford County, Pennsylvania. Phase I Inspection Program

National Dam Inspection Program. Mill Creek Dam (NDI ID-PA-0038, DER ID-008-051) Susquehanna River Basin, Mill Creek, Bradford County, Pennsylvania. Phase I Inspection Program
Author: D'APPOLONIA CONSULTING ENGINEERS INC PITTSBURGH PA.
Publisher:
Total Pages: 61
Release: 1981
Genre:
ISBN:

The dam is located across Mill Creek, approximately three miles upstream from its confluence with the Tuscarora Creek in Tuscarora Township, Bradford County, Pennsylvania. The dam is classified to be in the significant hazard category. It is estimated that failure of the dam may cause loss of a few lives and some property damage in these areas. The onsite inspection of Mill Creek Dam consisted of: Visual inspection of the embankment, abutments, and embankment toe, Visual examination of the spillway and the visible portions of the outlet works, and Evaluation of downstream area hazard potential.

Waterfowl Ecology and Management

Waterfowl Ecology and Management
Author: Guy A. Baldassarre
Publisher: Krieger Publishing Company
Total Pages: 592
Release: 2006
Genre: Nature
ISBN:

Baldaserre & Bolen addresses several aspects of waterfowl ecology and management. This second edition includes 16 'infoboxes, ' which are stand-alone inserts in the various chapters. The infoboxes present information on important waterfowl people, places, and issues

National Dam Inspection Program. Pomeroy Memorial Reservoir Dam (NDI ID Number PA-40 DER ID Number 8-2), Susquehanna River Basin, West Branch Sugar Creek, Bradford County, Pennsylvania. Phase I Inspection Report

National Dam Inspection Program. Pomeroy Memorial Reservoir Dam (NDI ID Number PA-40 DER ID Number 8-2), Susquehanna River Basin, West Branch Sugar Creek, Bradford County, Pennsylvania. Phase I Inspection Report
Author: R. Jeffrey Kimball
Publisher:
Total Pages: 80
Release: 1981
Genre:
ISBN:

The Pomeroy Memorial Reservoir Dam appears to be in poor condition and poorly maintained. The concrete on the upstream slope of the dam is in a deteriorated condition as is the concrete in the spillway section. The spillway retaining walls are visibly deteriorated and a section of the right spillway wingwall has cracked and fallen away from the structure. Maintenance of the dam and operating facilities is considered poor. The drainline valves have not been operated in the recent past. Pomeroy Memorial Reservoir Dam is a high hazard-small size dam. The recommended spillway design flood (SDF) for a dam of this size and classification is in the range of 1/2 PMF to PMF. Based on the downstream potential for loss of life, the spillway design flood has been selected as the PMF. The spillway and reservoir are capable of controlling approximately 9% of the PMF without overtopping the embankment low spot. If the low spot elevation were to be filled to an elevation consistent with the remaining portion of the embankment crest the spillway and reservoir would be capable of controlling approximately 20% of the PMF without overtopping the embankment. Based on criteria established by the Corps of Engineers, the spillway is termed inadequate.