Download or read book National Dam Inspection Program Shaver Creek Dam NDS ID Number PA 577 DER ID Number 31 72 Susquehanna River Basin Shaver Creek Huntingdon County Pennsylvania Phase I Inspection Report written by R. Jeffrey Kimball and published by . This book was released on 1979 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt: Shaver Creek Dam is a homogeneous earthfill dam. The embankment is 540 feet long and approximately 46 feet high. The upstream slope is 2.75H:1V and covered with riprap. The downstream slope is 2.5H:1V and covered with grasses. The crest width is 15 feet. The embankment has a select impervious core with random materials on the upstream and downstream sides of the core. A rock toe is present at the downstream end of the embankment. The cutoff trench is 12 feet wide and is excavated to firm rock. The spillway is located on the left abutment and consists of a concrete lined chute. The concrete weir is 1 foot wide and 52 feet long. The right side of the spillway has a 10 foot high concrete retaining wall extending 55 feet downstream of the concrete weir. Beyond the concrete retaining wall and on the left side of the spillway is a concrete paved chute with 2H:1V side slopes. The spillway exit channel is approximately 115 feet long and discharges into a 50 foot long stilling basin. The reservoir can be drained through a 4 foot by 4 foot concrete box culvert. The box culvert ends downstream at a concrete endwall. Flow through the 4 foot by 4 foot box is controlled by a sluice gate which is connected to a stem through the control tower.
Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 1048 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 1979-12 with total page 1288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Dam Inspection Program Mill Water Dam NDS I D Number PA 00703 DER I D Number 6 442 Susquehanna River Basin Back Creek Berks County Pennsylvania Phase I Inspection Report written by Mary F. Beck and published by . This book was released on 1980 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mill Water Pond Dam is owned by the Bethlehem Mines Corporation. The dam was originally built as an industrial water supply dam for the Grace Mine. As the mine is no longer in operation, water from the reservoir is no longer used. The dam and its appurtenant facilities are considered to be in good condition. The dam is classified as a Small size structure with a High hazard classification, consistent with the dam's location immediately above an occupied dwelling and above commercial buildings and other residences farther downstream on Conestoga Creek. In accordance with criteria established by Federal (OCE) Guidelines, the spillway design flood for this Small size dam and High hazard classification is one-half to the full Probable Maximum Flood (PMF). As the dam height and total capacity are near the lower limit of the size classification, the selected spillway design flood is one-half the PMF. Mining of the deep iron ore body has caused extensive subsidence. The mine waste rock is disposed of downstream of the subsidence area. Therefore, currently, Mill Water Pond intercepts surface runoff only from about 0.31 square mile immediately above the dam. Hydrologic and hydraulic computations presented in Appendix D indicate the maximum spillway capacity is greater than the peak PMF inflow from the reduced watershed. Therefore, the spillway system of this structure is considered to be Adequate.
Download or read book Government Reports Annual Index written by and published by . This book was released on 1979 with total page 1032 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book National Dam Inspection Program Stephen Foster Dam NDS ID Number PA 906 DER ID Number 8 59 Susquehanna River Basin Mill Creek Bradford County Pennsylvania Phase I Inspection Report written by KIMBALL (L ROBERT) AND ASSOCIATES EBENSBURG PA. and published by . This book was released on 1979 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stephen Foster Dam is an earthfill dam 500 feet long and 49 feet high. The upstream slope is 3H:1V and covered with riprap to elevation 1085. The core trench is 10 feet wide and averages approximately 5 feet deep. The embankment is homogeneous and contains no distinct zones. The spillway is located on the left (north) abutment. The spillway approach is cut in earth and is trapezoidal in shape. The concrete ogee weir is 80 feet long. The spillway approach channel is approximately 600 feet long. The spillway exit channel is approximately 230 feet long and consists of a concrete lined chute. The drawdown conduit consists of a 48 inch concrete pipe. The drawdown conduit is regulated by a valve located in a control tower in the upstream portion of the embankment.
Download or read book National Dam Inspection Program Kephart Dam NDS ID Number PA 00447 PennDER ID Number 14 89 Susquehanna River Basin Black Moshannon Creek Centre County Pennsylvania Phase I Inspection Report written by GAI CONSULTANTS INC MONROEVILLE PA. and published by . This book was released on 1979 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on a visual inspection, past performance, and available engineering data, the facility is considered to be in good condition. The facility is capable of passing and/or storing the flow resulting from a flood of PMF intensity without overtopping, consequently, the spillway is considered adequate. It is recommended that the owner: (a) Have the embankment crest surveyed and infill any low spots to restore the embankment section to its design elevation (1874.0). (b) Extend the riprap protection to the top of the dam along the emergency spillway-embankment junction to provide slope protection in the event the emergency spillway should discharge at or near full capacity. (c) Develop a warning system to provide for the notification of temporary downstream residents should hazardous conditions develop.
Download or read book National Dam Inspection Program Lake Mount Union Dam NDS ID Number PA 473 DER ID Number 31 52 Susquehanna River Basin Singers Gap Run Huntingdon County Pennsylvania Phase I Inspection Report written by R. Jeffrey Kimball and published by . This book was released on 1979 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lake Mount Union Dam is a concrete buttress dam. Lake Mount Union Dam was built by the Ambursen Construction Company and is thus called an Ambursen type dam. Ambursen dams are articulated, reinforced concrete buttress dams with expansion joints between the decks and the buttresses. The deck consists of reinforced concrete water bearing slabs, separated by buttress tongues and supported by reinforced concrete haunches which are constructed monolithically with the buttresses. Lake Mount Union Dam has seventeen vertical concrete buttresses constructed on eighteen foot centers. These buttresses are founded on shale and quartzite. The buttresses are of variable thickness with the bottom of each buttress 21 inches thick and the top of the buttress 14 inches thick. The concrete slab on the upstream of each buttress is also of variable thickness. The bottom of the slab is 41.5 inches thick with the top of the slab 24 inches thick. The concrete slab is sloped at an angle of 1H:1V. At the toe of the upstream slope of the dam a cutoff trench was excavated. This cutoff trench was backfilled with concrete. Steel reinforcing was placed in all buttresses and throughout the concrete slab. Between all expansion joints, asphalt putty was placed.
Download or read book National Dam Inspection Program PA 467 Dam NDI I D Number PA 00054 DER I D Number 58 131 SCS I D Number PA 467 Susquehanna County Commissioners Susquehanna River Basin Tributary to Martins Creek Susquehanna County Pennsylvania Phase I Inspection Report written by Frederick Futchko and published by . This book was released on 1979 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book National Dam Inspection Program Pikes Creek Dam NDS PA 00576 DER 40 18 Susquehanna River Basin Pikes Creek Luzerne County Pennsylvania Phase I Inspection Report written by GANNETT FLEMING CORDDRY AND CARPENTER INC HARRISBURG PA. and published by . This book was released on 1978 with total page 97 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 Brown Creek Dam NDS ID Number PA 573 DER ID Number 40 208 Borough of Plymouth Susquehanna River Basin Brown Creek Luzerne County 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 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: The assessment of Brown Creek Dam is based upon visual observations made at the time of inspection, review of available records and data, hydraulic and hydrologic computations and past operational performance. The Brown Creek Dam appears to be in fair condition. The erosion on the crest and downstream embankment in the area of the principal spillway and along the wingwall of the emergency spillway crest should be repaired. Because the reservoir was dry (as is the normal condition) no determination as to potential wet zones or seepage areas could be made. Maintenance of the dam and operating facilities is considered fair. The Brown Creek Dam is a high hazard-small dam. The recommended spillway design flood (SDF) for this dam is the 1/2 PMF to PMF. Based on the potential for downstream loss of life, the spillway design flood has been selected as the PMF. The spillway and reservoir are capable of controlling approximately 80% of the PMF without overtopping the embankment (low spot). Based on criteria established by the Corps of Engineers, the spillway is termed inadequate.
Download or read book National Dam Inspection Program Pennsylvania Gas and Water Company Griffin Dam NDS ID Number 188 Susquehanna River Basin Leggetts Creek Lackawanna County Pennsylvania Phase I Inspection Report written by A. C. Hooke and published by . This book was released on 1978 with total page 75 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 Briar Creek Dam NDI ID Number PA 00651 DER ID Number 19 77 SCS ID Number PA 497 Susquehanna River Basin East Branch Briar Creek Columbia County Pennsylvania Phase I Inspection Report written by Albert Charles Hooke and published by . This book was released on 1979 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on visual inspection, available records, calculations and past operational performance, Briar Creek 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, which indicates that the embankment has adequate factors of safety. There is no evidence of significant problems threatening the embankment. A slide and sinkholes have developed in the auxiliary spillway.
Download or read book National Dam Inspection Program Sugar Creek Dam NDI ID Number PA 728 DER ID Number 8 53 Susquehanna River Basin South Branch Sugar Creek Bradford County Pennsylvania Phase I Inspection Report written by R. Jeffrey Kimball and published by . This book was released on 1981 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: The assessment of Sugar Creek Dam is based upon visual observations made at the time of inspection, review of available records and data, hydraulic and hydrologic computations and past operational performance. The inspection and review of Sugar Creek Dam did not reveal any problems which would require emergency action. The dam appears to be in fair condition and in need of minor maintenance. The Sugar Creek Dam is a high hazard-small size dam. The spillway design flood (SDF) for a dam of this size and classification is 1/2 PMF to PMF. The PMF has been selected as the spillway design flood based on the downstream potential for loss of life. The spillway and reservoir are considered capable of controlling approximately 50% of the PMF. The 0.1 feet of overtopping of the embankment crest during the 1/2 PMF event for a duration of 1 hour was not considered sufficient to cause failure of the structure. Based on the judgement of the evaluating engineer, the location and duration of the overtopping as well as the existence of a concrete curb on the upstream and downstream edge of the embankment crest would sufficiently contain the overtopping to the spillway area minimizing damage to the embankment and spillway. The spillway is considered inadequate.
Download or read book National Dam Inspection Program Lake Walter Dam NDI I D Number PA 0080 DER I D Number 058 135 Susquehanna River Basin Tributary of Messhoppen Creek Susquehanna County Pennsylvania Phase I Inspection Report written by Lawrence D. Andersen and published by . This book was released on 1981 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book National Dam Inspection Program Middle Creek Dam Clarence F Walker Lake NDS ID Number PA 00918 DER ID Number 55 45 SCS ID Number PA 637 Susquehanna River Basin Middle Creek Snyder County Pennsylvania Phase I Inspection Report written by KIMBALL (L ROBERT) AND ASSOCIATES EBENSBURG PA. and published by . This book was released on 1979 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt: Middle Creek Dam (Clarence F. Walker Lake) is a zoned earthfill dam. The embankment is 53 feet high and 1360 feet long. The axis of the dam has a 137 deg. bend in the upstream direction 860 feet from the left abutment. The emergency spillway is located on the right (north) abutment. The spillway is 170 feet wide and is open cut in shale and weathered shale. The principal spillway consists of 48 inch concrete pipe with a reinforced concrete riser inlet. Extending upstream of the riser is a 36 inch concrete pipe with a reinforced concrete reservoir drain inlet at the upstream toe of the embankment. At the downstream end of the 48 inch diameter pipe is a concrete impact stilling basin. The embankment and appurtenant structures appear to be in good condition and well maintained. However, the presence of the seepage zones and wet areas are of concern. The long term effect of these areas on the stability of the embankment is unknown. The existing spillways and reservoir are capable of controlling the PMF (probable maximum flood). Based upon criteria established by the Corps of Engineers, the spillway is termed adequate.
Download or read book National Dam Inspection Program North Fork Dam NDS ID Number PA 28 DER ID Number 53 57 SCS ID Number PA 406 Susquehanna River Basin White Branch of North Fork Potter County Pennsylvania Phase I Inspection Report written by Kuang-hwei Chuang and published by . This book was released on 1979 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: North Fork Dam is a homogeneous earthfill dam 622 feet long and 58 feet high. The principal spillway is a two-stage drop inlet spillway with a 30' diameter reinforced concrete pipe. The riser unit is 2.5 feet by 7.5 feet and is 33 feet high. The emergency spillway is located on the left abutment and is formed by a trapezoidal shaped open cut in glacial sand clay and gravel. The bottom width of the spillway channel is 100 feet. The spillway exit channel is 482 feet long and discharges on the left hillside below the toe of the dam. The inspection and review of data of North Fork Dam did not reveal any problems which require emergency action. The dam appears to be stable, well maintained, safely operated and in good condition. However, the spillway and reservoir are capable of controlling 60% of Probable Maximum Flood without overtopping the earth embankment. Based upon criteria established by the Corps of Engineers, the spillway is termed inadequate, but not seriously inadequate. In addition, the earth berm in the emergency spillway exit channel is low and overtopping of the berm during flood conditions will cause erosion of the embankment/abutment contact. This spillway berm will be overtopped at approximately 25% of the PMF.
