Download or read book Technical Abstract Bulletin written by and published by . This book was released on 1981 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Dam Inspection Program Heilman Dam NDI Number PA 00612 DER Number 13 005 Delaware River Basin Carbon County Pennsylvania Phase I Inspection Report written by Hendrik Jongsma and published by . This book was released on 1981 with total page 69 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 poor condition. In accordance with the Corps of Engineers' evaluation guidelines, the size classification of this dam is small and the hazard classification is significant. These classifications indicate that the Spillway Design Flood (SDF) should be in the range of the 100 year flood to one-half the Probable Maximum Flood (PMF). The recommended SDF for this structure is the 100 year flood. The spillway capacity is not adequate for passing the SDF peak inflow without overtopping the dam. The spillway is considered to be inadequate, but not seriously inadequate. Some recommendations presented for immediate action by the owner are: (1) that measures shall be taken to provide an adequate spillway capacity, which shall include the raising of the embankment profile to at least the design crest elevation, (2) that the embankment be cleared of all trees, brush and weeds under the direction of a professional engineer, experienced in the design and construction of earthfill dams, and (3) that access above the floodplain be provided for surveillance.
Download or read book Government Reports Annual Index written by and published by . This book was released on 1981 with total page 1194 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1981-07 with total page 1304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book DELAWARE RIVER BASIN HEILMAN DAM BOROUGH OF LEHIGHTON NDI NO PA 00612 DER NO 13 005 CARBON COUNTY PENNSYLVANIA PHASE 1 INSPECTION REPORT NATIONAL DAM INSPECTION PROGRAM written by United States. Army. Corps of Engineers. Baltimore District 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 National Dam Inspection Program Long Run Reservoir Number I Dam NDI Number PA 00882 DER Number 13 004 Delaware River Basin Carbon County Pennsylvania Phase I Inspection Report written by Hendrik Jongsma and published by . This book was released on 1981 with total page 82 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 structure is one-half the PMF. The spillway capacity is adequate for passing 23 percent of the PMF peak inflow without overtopping the dam. Overtopping by the SDF is expected not to cause failure of the dam. The spillway, therefore, is considered to be inadequate, but not seriously inadequate. Some recommendations presented for immediate action by the owner are: (1) that measures shall be taken to provide an adequate spillway capacity, (2) that the cracked spillway slab be repaired, (3) that the downstream end of the spillway be protected from washouts during large discharges, (4) that the upstream gates be maintained and operated on a regular basis, and (5) that the downstream blow-off valves be maintained and operated on an annual basis.
Download or read book National Dam Inspection Program SCS Dam PA 419 NDI Number PA 00086 DER Number 64 170 Delaware River Basin Wayne County Pennsylvania Phase I Inspection Report written by BERGER ASSOCIATES INC HARRISBURG PA. and published by . This book was released on 1980 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt: This flood control dam consists of a 420-foot-long homogeneous earthfill embankment with a maximum height of 29 feet above the streambed. The structure has two spillways. The principal spillway is a drop inlet structure and discharges through a 24-inch diameter pipe. An emergency spillway is located in the right abutment. This spillway consists of a grassed earth channel with a bottom channel width of 41 feet. The emergency spillway crest is 5 feet below the top of the dam. Based on the visual inspection, past performance and the available engineering data, the dam and its appurtenant structures appear to be in good condition. The spillway capacity is adequate to pass the PMF peak inflow without overtopping the dam, and is considered to be adequate.
Download or read book National Dam Inspection Program Towamensing Trails Dam NDI Number PA 00920 DER Number 13 108 Delaware River Basin Carbon County Pennsylvania Phase I Inspection Report written by BERGER ASSOCIATES INC HARRISBURG PA. and published by . This book was released on 1979 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Towamensing Trials Dam is a 38 foot high zoned earthfill dam with an embankment length of about 3200 feet. Impervious material forms the upstream section of the embankment and has a surface slope of 3H to 1V. Random fill makes up the remaining portion of the embankment and forms a downstream slope of 2.5H to 1V. An internal drainage system includes a vertical stone drain 30 inches in width over the major length of the embankment. This vertical drain connects to a horizontal blanket drain which discharges into a 12-inch diameter perforated drain pipe just beneath the downstream toe of the embankment. A five foot deep key trench of impervious soil is located at the upstream toe of the embankment. This trench has a bottom width of 30 feet. The spillway, located at the left abutment, is a 50 foot wide concrete ogee section with a crest elevation of 1,645. Design crest elevation of the embankment is 1650.5. The outlet channel for the spillway is paved with concrete and has concrete training walls extending to a point 300 feet downstream from the spillway.
Download or read book National Dam Inspection Program Nesquehoning 4th Hollow Reservoir NDI PA 00806 DER 13 104 Delaware River Basin Carbon County Pennsylvania Phase I Inspection Report written by BERGER ASSOCIATES INC HARRISBURG PA. and published by . This book was released on 1979 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Nesquehoning 4th Hollow Reservoir Dam originally known as the Broad Run Dam is a homogeneous earthfill dam with a maximum height of 51 feet above the downstream toe. The length of the earthfill is 300 feet. A 50-foot wide spillway is located in the right abutment. This spillway is an ogee type weir having a crest elevation 8.5 feet below the top of the spillway abutment walls. The forebay walls, spillway chute and stilling basin are all formed with concrete walls and slabs. An intake structure is located at the toe of the upstream slope of the embankment and has 4 sluice gates; three for water supply intake and one for drawdown purposes. The conduit through the embankment is horseshoe shaped and has a well defined riprap protected downstream channel. At the exit of the conduit is a small basin with energy dissipators. The water supply intake is through a 16-inch C.I. pipe encased in concrete. (Author).
Download or read book Delaware River Basin Long Run Reservoir No 1 Dam Lehighton Water Authority NDI No PA 00882 DER No 13 004 Carbon County Pennsylvania written by National Dam Inspection Program and published by . This book was released on 1981 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Dam Inspection Program Penn Forest Dam National I D Number PA 00608 Delaware River Basin Wild Creek Carbon County Pennsylvania Phase I Inspection Report written by John H Frederick (Jr) and published by . This book was released on 1978 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Dam Inspection Act, Public Law 92-367, authorized the Secretary of the Army, through the Corps of Engineers, to initiate a program of inspection of dams throughout the United States. The purpose of the inspection is to determine if the dam constitutes a hazard to human life or property.
Download or read book National Dam Inspection Program SCS Dam PA 451 NDI Number PA 01031 DER Number 64 197 Delaware River Basin Wayne County Pennsylvania Phase I Inspection Report written by BERGER ASSOCIATES INC HARRISBURG PA. and published by . This book was released on 1980 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt: This flood control dam consists of a 300-foot-long, zoned earthfill embankment with a maximum height of 15 feet above the streambed. The structure has two spillways. The principal spillway is a drop inlet structure and discharges through a 30-inch diameter pipe. An emergency spillway is constructed in the right abutment. This spillway consists of a grassed earth channel with a bottom channel width of 60 feet. The emergency spillway crest was designed to be 5 feet below the top of the dam. Based on the visual inspection, past performance and the available engineering data, the dam and its appurtenant structures appear to be in good condition. The spillway capacity is able to pass the full PMF peak inflow without overtopping the dam, and is considered to be adequate.
Download or read book National Dam Inspection Program Dam F NDI ID Number PA 00642 DER ID Number 40 13 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 99 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on visual inspection, available records, calculations, past operational performance, and according to criteria established for these studies, Dam F is judged to be unsafe, nonemergency, because the spillway capacity is rated as seriously inadequate. The spillway can pass 29 percent of the Probable Maximum Flood (PMF) without overtopping of the dam. The Owner has placed sandbags along the spillway crest, which reduces the spillway capacity further. The resulting outflows from the failure of Dam F would overtop and cause the failure of Dam G. This would result in the loss of life. As a whole, the dam is judged to be in fair condition. There are bulges on the downstream slope that apparently have not stabilized. The dam has essentially no operational emergency drawdown capability. Maintenance at the dam is marginal.
Download or read book National Dam Inspection Program Crystal Lake Dam NDI ID Number PA 00096 DER ID Number 64 6 Delaware River Basin Lehigh River Wayne County Pennsylvania Phase I Inspection Report written by GANNETT FLEMING CORDDRY AND CARPENTER INC HARRISBURG PA. and published by . This book was released on 1981 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of the inspection is to determine if the dam constitutes a hazard to human life or property. Crystal Lake Dam is located on the headwaters of the Lehigh River in Lehigh Township, Wayne County, Pennsylvania. The overall appearance of the dam and appurtenant structures is fair. The toe of the dam and entire embankment are covered with brush and small trees, up to one inch in diameter, obscuring the slopes from view and making of visual inspection difficult. Accordingly, some deficiencies may have gone unnoticed. The embankment slopes are irregular and do not appear to have been constructed to any particular design template. Settlement of the embankment was observed on both sides of the spillway and adjacent to the corewall along the entire length of the dam. These low areas vary in depth from only a few inches to nearly three feet. Erosion all along the upstream slope was observed at, or near, the normal pool level which has resulted in a nearly vertical two-foot drop in the slope. It is reported that riprap was placed on the slope during construction, although it was somewhat sparse in many places. There is very little riprap now remaining on the upstream slope.
Download or read book National Dam Inspection Program Y M C A Dam NDS ID Number PA 873 DER ID Number 13 100 Delaware River Basin Drakes Creek Carbon County Pennsylvania Pleasant Valley West Property Owners Association Phase I Inspection Report written by KIMBALL (L ROBERT) AND ASSOCIATES EBENSBURG PA. and published by . This book was released on 1980 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: YMCA Dam is an earthfill dam, 42 feet high and 608 feet long. The crest width is 9 feet. The upstream slope is 2.5H:1V and grass covered. The downstream slope was measured to be 2H:1V and grass covered. The reservoir drain consists of a 24 inch corrugated metal pipe with a concrete endwall located 270 feet from the left abutment. The spillway consists of a 42 foot long ogee section, 150 feet from the left abutment. The inspection and review of data of the YMCA Dam did not reveal any problems which require emergency action. The dam appears to be in fair condition. The seepage which was noted along the toe of dam should be monitored and evaluated by a professional engineer knowledgeable in earth dams. The evaluation should be implemented immediately. The spillway and reservoir are capable of controlling approximately 81% of the PMF. Based on criteria established by the Corps of Engineers, the spillway is termed adequate.
Download or read book National Dam Inspection Program Wild Creek Dam Carbon County Pennsylvania National I D Number PA 00609 Delaware River Basin Wild Creek Carbon County Pennsylvania Phase I Inspection Report written by John H Frederick (Jr) and published by . This book was released on 1978 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wild Creek Dam is a zoned rolled earth and coarse fill embankment with riprap facing on the upstream side. The downstream side is a rolled coarse rock shell. It is approximately 1076 feet long and 135 feet high. This dam was designed to pass the probable maximum flood. However, it is the second in a series of two dams on Wild Creek above Beltzville Reservoir. A sudden breach of the upper, Penn Forest, dam would probably result in overtopping failure of Wild Creek Dam. The Corps of Engineers' Beltzville Dam, immediately downstream from Wild Creek, is reportedly designed to withstand this event. Since Wild Creek Dam has been designed to pass the PMF, the spillway is considered to be 'Adequate'. Wild Creek Dam appears to be in excellent condition. No visible signs of uncontrolled leakage, sloughing, or significant displacement were discovered other than along the spillway retaining walls where some cracking was observed. It was noted that this zoned embankment dam was designed without protective filters between the impervious core and coarser outer shell. However, no indications of internal erosion have manifested themselves in over 40 years of service.
Download or read book National Dam Inspection Program Bronson Pond Dam NDI ID Number PA 00143 DER ID Number 64 42 Delaware River Basin Middle Creek Wayne County Pennsylvania Phase I Inspection Report written by CORPS OF ENGINEERS BALTIMORE MD BALTIMORE DISTRICT. and published by . This book was released on 1981 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
