Download or read book National Dam Inspection Program Gorson Dam NDI ID Number PA 01084 DER ID Number 52 61 Delaware River Basin Mill Creek Pike County Pennsylvania Phase I Inspection Report written by Frederick FUTCHKO and published by . This book was released on 1981 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on the criteria established for these studies, Gorson 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. The selected SDF is the 1/2 PMF. The existing spillway will pass only about 20 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. If the low areas on the top of the dam were filled to the design elevation, the spillway would pass about 36 percent of the PMF without any overtopping. For either condition, the spillway capacity is rated as seriously inadequate. Failure of Gorson Dam would cause an increased hazard for loss of life downstream.

Download or read book Technical Abstract Bulletin written by and published by . This book was released on 1981 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book DELAWARE RIVER BASIN MILL CREEK PIKE COUNTY PENNSYLVANIA GORSON DAM NDI ID NO PA 01084 DER ID NO 52 61 GIRL SCOUTS OF DELAWARE COUNTY INC PHASE 1 INSPECTION REPORT NATIONAL DAM INSPECTION PROGRAM written by Gannett Fleming Corddry and Carpenter and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Annual Index written by and published by . This book was released on 1981 with total page 940 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book National Dam Inspection Program Walker Lake Dam NDI ID Number PA 00317 DER ID Number 52 127 Delaware River Basin Pike County Pennsylvania Phase I Inspection Report written by Hendrik Jongsma and published by . This book was released on 1980 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on the visual inspection, past performance and the available engineering data, the dam and its appurtenant structures appear to be in fair condition. In accordance with the Corps of Engineers' evaluation guidelines, the size classification of this dam is small and the hazard classification is high. These classifications indicate that the Spillway Design Flood (SDF) should be in the range of one-half the Probable Maximum Flood (PMF) to the full PMF. The recommended SDF for this flood control structure is the PMF. The spillway capacity is adequate for passing 71 percent of the PMF peak inflow without overtopping the dam. The spillway, therefore, is considered to be inadequate, but not seriously inadequate.

Download or read book National Dam Inspection Program Lake Greeley Dam NDI I D Number PA 00752 PennDER I D Number 52 20 Delaware River Basin Taylortown Creek Pike County Pennsylvania Phase I Inspection Report written by and published by . This book was released on 1981 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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. Since the facility is classified near the upper bounds of the small category with regard to available storage capacity, the SDF is considered to be the PMF. Results of the hydrologic and hydraulic analysis indicate that under existing conditions the facility will pass and/or store only about 17 percent of the PMF prior to embankment overtopping at the low area adjacent the left abutment. If the low area were regraded to the design top of dam, the spillway system would then pass about 28 percent of the PMF prior to embankment overtopping. Under existing conditions, spillway discharges are controlled by the existence of a township-owned roadway embankment and culvert that is situated about 100 feet downstream of the spillway weir.

Download or read book National Dam Inspection Program North Lake Dam NDI I D Number PA 00268 PennDER I D Number 52 180 Delaware River Basin Branch of Hornbecks Creek Pike County Pennsylvania Phase I Inspection Report written by Bernard M. Mihalcin and published by . This book was released on 1981 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt: North Lake Dam is located on a branch of Hornbecks Creek in Delaware Township, Pike County, Pennsylvania. The facility is located approximately 1,500 feet upstream and west of wild Acres Lake, and about five miles from U.S. Route 209 which parallels the Delaware River in this area. Observations made during the visual inspection indicate the embankment is in fair condition, but in need of general maintenance. No evidence of seepage through the downstream embankment face, sloughing, erosion or animal burrows was observed. The embankment crest is noticeably low (in excess of 1-foot) near the spillway relative to the remainder of the crest. About two-thirds of the embankment is overgrown along an area extending approximately 400 feet to the right of the spillway. The vegetation is characterized as primarily brush and high weeds with clumps of small trees strewn throughout. In contrast, much of the embankment crest and upstream face are bare and unprotected with only light vegetation visible. Several long tire ruts scar the crest near the spillway. A small area characterized by swamplike vegetation is located about 350 to 375 feet from the right abutment along the downstream embankment toe. Seepage was observed at the downstream embankment toe near the outlet conduit flowing at a rate of about two to three gpm. The flow is suspected of being either seepage through the embankment foundation, or perhaps drainage from a concealed toe drain. A precise assessment of the condition is difficult without adequate design data are drawings.

Download or read book National Dam Inspection Program Wilson Creek Dam NDI PA 00318 PA DER 52 154 SCS PA 440 Delaware River Basin Wilson Creek Pike County Pennsylvania Phase I Inspection Report written by O'BRIEN AND GERE ENGINEERS INC PHILADELPHIA PA JUSTIN AND COURTNEY DIV. and published by . This book was released on 1979 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wilson Creek Dam is a zoned earth embankment with a foundation cutoff trench. The cut-off trench has a base width of 12 feet and extends into the foundation. The cut-off trench is backfilled with a zone of silty sand and silt of low permeability. The central core of the dam is composed of silty sand and silt to an elevation 9.5 feet below the top of the dam. The remainder of the dam is a pervious zone of silty gravel. The earth embankment has side slopes of 3 horizontal to 1 vertical (3H:1V) on the upstream side and 2H:1V on the downstream side. Berms exist on the upstream and downstream slopes of the dam. The berm on the upstream side is 8 feet wide and slopes towards the reservoir on a 12.5 percent grade; its lowest elevation is at the normal pool 1708.4. The berm on the downstream slope is 36 feet wide and slopes downstream on a 1.4 percent grade. This berm is used as a roadway with its lowest elevation at 1710.(Author).

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1981 with total page 1070 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book National Dam Inspection Program Rickards Dam NDI I D Number PA 00405 PennDER I D Number 52 82 Delaware River Basin Branch of Hornbecks Creek Pike County Pennsylvania Phase I Inspection Report written by GAI CONSULTANTS INC MONROEVILLE PA. and published by . This book was released on 1981 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on a visual inspection, construction history, and available engineering data, the dam is considered to be in poor 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. Since the facility is classified near the lower bounds of the small category, the SDF is considered to be the 1/2 PMF. Results of the hydrologic and hydraulic analysis indicate the facility will pass and/or store only about 29 percent of the PMF prior to embankment overtopping at the low area in the main embankment crest. 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. Structural deficiencies observed by the inspection team included excessive settlement of both the main embankment and dike structures, general deterioration of the spillway and outlet works, and a general lack of routine maintenance . Historical correspondences also strongly questions the construction quality of the facility.

Download or read book National Dam Inspection Program Long Ridge Dam NDI I D Number PA 01022 PennDER I D Number 52 185 Delaware River Basin Branch of Hornbecks Creek Pike County Pennsylvania Phase I Inspection Report written by and published by . This book was released on 1981 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on a visual inspection, operational history and hydrologic/ hydraulic anlaysis, the dam is considered to be in fair condition. The size classification of the facility is small and the hazard classification is considered to be high. In accordance with the recommended guidelines, the Spillway Design Flood (SDF) ranges between the 1/2 PMF (Probable Maximum Flood) and the PMF. Since the facility is classified near the lower bounds of the small category, the SDF is considered to be the 1/2 PMF. Results of the hydrologic and hydraulic analysis indicate the facility is capable of accommodating a 1/2 PMF event. Specifically, the facility will pass and/or store about 65 percent of the PMF prior to embankment overtopping. Consequently, the spillway is considered hydraulically adequate. It is noted that the spillway, as constructed, is considered to be deficient. The evaluation of its hydraulic adequacy is based upon the assumption that the channel adequately protected against erosion such that its service cannot threaten the structural integrity of the embankment.

Download or read book NATIONAL Dam Inspection Program Pickeral Pond Dam NDI I D Number PA 00755 PennDER I D Number 52 8 Delaware River Basin Bushkill Creek Pike County Pennsylvania Phase I INspection Report written by Bernard M. Mihalcin and published by . This book was released on 1981 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on a visual inspection, operational history, and available engineering data, the dam is considered to be in fair 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 40 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.

Download or read book National Dam Inspection Program Beaver Lake Lodge Dam NDI I D Number PA 00300 PennDER I D Number 52 93 Delaware River Basin Raymondskill Creek Pike County Pennsylvania Phase I Inspection Report written by Bernard M. Mihalcin and published by . This book was released on 1981 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose is to determine if the dam constitutes a hazard to human life or property. Beaver Lake Lodge Dam is located on Raymondskill Creek in Milford Township, Pike County, Pennsylvania. The visual inspection of the facility suggested that the dam and its appurtenances are in poor condition. The overall appearance of the facility suggests it to be in poor condition. Remedial measures are necessary to: (1) repair to deteriorated concrete spillways, (2) remove the trees and overgrowth from the embankment crest and slopes, (3) provide adequate erosion protection along the downstream embankment toe, and (4) restore the operability of the outlet conduit, or provide an alternate means of reservoir drawdown.

Download or read book National Dam Inspection Program Maple Lake Dam Delaware River Basin Stoffle Denmark Creek Pike County Pennsylvania NDI ID Number PA 00766 DER ID Number 52 170 Pine Ridge Community Association Phase I Inspection Report written by Frederick Futchko and published by . This book was released on 1980 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt: Maple Lake Dam is a homogeneous, earthfill embankment. It is 35 feet high at its maximum section and 685 feet long. The main spillway is located at the maximum section of the dam. It consists of a reinforced concrete riser structure near the upstream toe of the dam, a 24-inch diameter conduit, and a concrete outlet structure at the downstream toe of the dam. The auxiliary spillway is an excavated, trapezoidal channel at the left abutment of the dam. Based on visual inspection, available records, calculations, past operational performance, and according to criteria established for these studies, Maple Lake Dam is judged to be in good condition. Based on existing conditions, the main and auxiliary spillways will pass an approximate minimum of 48 percent of the Probable Maximum Flood (PMF before overtopping of the dam occurs. No stability problems were evident for the embankment at the time of the visual inspection, but a potential hazard to stability exists due to erosion that might occur when there is flow in the auxiliary spillway.

Download or read book National Dam Inspection Program Wild Acres Lake Dam NDI I D Number PA 00407 PennDER I D Number 52 65 Delaware River Basin Branch of Hornbecks Creek Pike County Pennsylvania Phase I Inspection Report written by Bernard M. Mihalcin and published by . This book was released on 1981 with total page 95 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wild Acres Lake Dam is located on a branch of Hornbecks Creek in Delaware Township, Pike County, Pennsylvania. The facility is an integral part of the surrounding development known as Wild Acres. The community is nestled in the mountains of Pike County less than five miles west of U.S. Route 209 which parallels the Delaware River in this area. Observations made during the visual inspection indicate the embankment and adjacent dike are in good condition. Heavy brush growth and small trees were observed along the embankment crest and upstream face. No evidence of seepage through the downstream embankment face, excess settlement, sloughing, erosion or animal burrows was encountered by the inspection team. Some rock slope protection has been displaced immediately adjacent the spillway right wingwall, leaving small bare areas on both the upstream and downstream embankment faces. The top of the concrete corewall exhibits excessive cracking and spalling along its entire length except for that portion associated with the dike along the right abutment which is in relatively good condition.

Download or read book National Dam Inspection Program Dam G NDI ID Number PA 00643 DER ID Number 40 14 Delaware River Basin Dreck Creek Luzerne County Pennsylvania Phase I Inspection Report written by Albert Charles Hooke and published by . This book was released on 1979 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dam G is a homogeneous earthfill embankment with a concrete core-wall. The embankment is 490 feet long and 19 feet high at maximum section. There are two outlet works at the dam. The first outlet works, which is near the right end of the embankment, consists of a concrete intake structure, two 24-inch diameter cast-iron pipes, and a valve house. This outlet works is connected to the water supply system. The second outlet works, which is near the left end of the dam, is similar to the first except it consists of a single 24-inch diameter pipe. The second outlet works provides the emergency drawdown capability. The concrete chute spillway is at the left abutment of the dam. Its crest is 3.0 feet below the design elevation of the top of the dam and is 75 feet long. The approach channel is short and concrete paved. The exit channel is a continuation of the chute. A bridge extends across the spillway crest. It is supported by two piers.

Download or read book National Dam Inspection Program Lake In The Clouds Dam NDI ID Number PA 00741 DER ID Number 52 125 Delaware River Basin Leavitt Branch of Brodhead Creek Pike County Pennsylvania Phase I Inspection Report written by Frederick Futchko and published by . This book was released on 1980 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on criteria established for these studies, Lake-In-The-Clouds 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 the Probable Maximum Flood (PMF) and the PMF. Based on the criteria and the downstream conditions, the selected SDF is the PMF. Based on existing conditions, with the embankment above its design elevation, the spillway will pass about 35 percent of the PMF before overtopping of the dam occurs. Failure of the dam would cause the probable overtopping and failure of a high hazard dam that is downstream. As a whole, the dam is judged to be in fair condition. No significant stability problems were observed at the embankment. The ability of the emergency drawdown facility to function is uncertain because it has not been operated recently. Maintenance at the dam is inadequate.