National Dam Safety Program. Angelica Dam. NDI-PA-00705. DA DER-6-20. Delaware River Basin, Angelica Creek, Berks County, Pennsylvania. Phase I Inspection Report

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ISBN 13 :
Total Pages : 65 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis National Dam Safety Program. Angelica Dam. NDI-PA-00705. DA DER-6-20. Delaware River Basin, Angelica Creek, Berks County, Pennsylvania. Phase I Inspection Report by : O'BRIEN AND GERE ENGINEERS INC PHILADELPHIA PA JUSTIN AND COURTNEY DIV.

Download or read book National Dam Safety Program. Angelica Dam. NDI-PA-00705. DA DER-6-20. Delaware River Basin, Angelica Creek, Berks 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 65 pages. Available in PDF, EPUB and Kindle. Book excerpt: Angelica Lake Dam is an earth structure with a masonry retaining wall along the left side (looking downstream) of the downstream face. The embankment is approximately 140 feet in length with a maximum height of 30 feet and a 35-foot top width. A road is built in the crest of the dam at Elevation 228.0. The upstream face of the embankment is variable in slope, ranging from 2.5 horizontal to 1 vertical (2.5 H:1V) between Elevations 203.0 and 213.0 to 1.5H:1V between Elevations 213.0 and 223.0 to 10H:1V between Elevations 223.0 and 228.0. The downstream slope of the embankment is 2H:1V from the spillway to the right abutment. The masonry wall forms the downstream face from the spillway to the left abutment. A broad-crested concrete drop spillway with stone masonry training walls is located near the center of the embankment. The spillway crest is 39 feet wide and has a 25-foot long concrete approach apron. The crest and approach apron are at Elevatrion 213.0. The spillway drop is 15 foot to a downstream concrete apron at Elevation 198.0. The apron is 52 feet long and directs flow into the outlet channel at Elevation 196.0. The masonry training walls extend from the entrance to the approach apron to the discharge point of the outlet apron. A concrete foot bridge crosses above the spillway crest at Elevation 222.0. The outlet works consist of a 20-inch diameter wrought iron pipe through the base of the embankment to the left of the spillway. Control of the pipe is provided by a sluice gate approximately 20 feet upstream of the spillway crest.

Technical Abstract Bulletin

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ISBN 13 :
Total Pages : 1186 pages
Book Rating : 4.E/5 ( download)

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Download or read book Technical Abstract Bulletin written by and published by . This book was released on 1979 with total page 1186 pages. Available in PDF, EPUB and Kindle. Book excerpt:

National Dam Safety Program. Bernhart Dam. NDI-PA-00717. PA DER-6-1. Delaware River Basin. Bernhart Creek, Berks County, Pennsylvania. Phase I Inspection Report

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ISBN 13 :
Total Pages : 74 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis National Dam Safety Program. Bernhart Dam. NDI-PA-00717. PA DER-6-1. Delaware River Basin. Bernhart Creek, Berks County, Pennsylvania. Phase I Inspection Report by : O'BRIEN AND GERE ENGINEERS INC PHILADELPHIA PA JUSTIN AND COURTNEY DIV.

Download or read book National Dam Safety Program. Bernhart Dam. NDI-PA-00717. PA DER-6-1. Delaware River Basin. Bernhart Creek, Berks 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 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bernhart Dam is an earth embankment with a masonry brick core wall. A 5-foot high masonry wall is located at the upstream edge of the top of the dam. The embankment is approximately 180 feet in length and has a maximum height of 30 feet. The side slopes are 2 horizontal to 1 vertical (2H:1V) upstream and 3H:1V downstream. The top of dam width varies between 22 and 35 feet. The dam impounds a reservoir with a normal pool storage capacity of 129 acre-feet. The reservoir was originally used for water supply but now serves only recreational purposes. A broad-crested spillway with a 40-foot crest length is located at the right abutment. The crest is at Elevation 395, 5 feet below the top of the dam. A masonry sidewall is provided along the left side of the spillway. The right sidewall of the spillway is formed by the nearly vertical rock abutment. The outlet channel is provided with masonry training walls along both sides for an approximate distance of 300 feet downstream.

Government Reports Announcements & Index

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ISBN 13 :
Total Pages : 1288 pages
Book Rating : 4.E/5 ( download)

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Book Synopsis Government Reports Announcements & Index by :

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:

National Dam Safety Program. Grace Mine Trailings Dam, (NDI-PA00715, PA DER 6-445) Delaware River Basin, Tributary to Hay Creek, Berks County, Pennsylvania. Phase I Inspection Report

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ISBN 13 :
Total Pages : 72 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis National Dam Safety Program. Grace Mine Trailings Dam, (NDI-PA00715, PA DER 6-445) Delaware River Basin, Tributary to Hay Creek, Berks County, Pennsylvania. Phase I Inspection Report by : O'BRIEN AND GERE ENGINEERS INC PHILADELPHIA PA JUSTIN AND COURTNEY DIV.

Download or read book National Dam Safety Program. Grace Mine Trailings Dam, (NDI-PA00715, PA DER 6-445) Delaware River Basin, Tributary to Hay Creek, Berks 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 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: Grace Mine Trailings Dam is an earth and rockfill embankment approximately 2,000 feet long with a maximum height of 145 feet. The dam was constructed to impound iron ore tailings slurry pumped from a nearby iron mine operated by the Bethlehem Mines Corporation. The reservoir area provides storage space for the trailings which settle out of the slurry to leave a clear water lake. A homogeneous, impervious earth embankment was originally constructed in 1956-1957 to Elevation 600. Two extension dikes were constructed to Elevation 620 in 1976-1977. These dikes are located several hundred feet to the south of the right abutment. The side slopes were 3 horizontal to 1 vertical (3H:1V) from the base of the dam to Elevation 540 and 2.5H:1V from Elevation 540 to the top of the dam.

National Dam Safety Program. Crum Creek Dam (NDI-PA-00350, PA-DER-23-20), Delaware River Basin, Crum Creek, Delaware County, Pennsylvania. Phase I Inspection Report

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ISBN 13 :
Total Pages : 91 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis National Dam Safety Program. Crum Creek Dam (NDI-PA-00350, PA-DER-23-20), Delaware River Basin, Crum Creek, Delaware County, Pennsylvania. Phase I Inspection Report by : O'BRIEN AND GERE ENGINEERS INC PHILADELPHIA PA JUSTIN AND COURTNEY DIV.

Download or read book National Dam Safety Program. Crum Creek Dam (NDI-PA-00350, PA-DER-23-20), Delaware River Basin, Crum Creek, Delaware 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 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: Crum Creek Dam is a masonry gravity structure (cyclopean concrete) about 610 feet long and 25 feet high. A 210-foot long ungated overflow spillway is located along the length of the dam about 80 feet from the right abutment. The dam, which is classified as 'High' hazard, has a Spillway Design Flood (SDF) equal to the Probable Maximum Flood (PMF). A review of the results of the hydrologic and hydraulic analyses indicates that the spillway is capable of passing about 23 percent of the PMF. The spillway is classified as 'Inadequate' for passing the PMF; however, the spillway is not considered 'Seriously Inadequate' since the hazard potential due to a failure of the dam is not significantly greater than the hazard without a failure of the dam. Stability analyses were performed for both the overflow and non-overflow sections for the anticipated range of loading conditions. A review of the results indicates that the resultant of forces is located outside the middle third of the base width for 50 percent of the PMF, PMF and normal pool with ice loading conditions. Based on visual observations, review of the information provided by the Pennsylvania Department of Environmental Resources (DER), Division of Dam Safety, and conversations with the Owner's representative, Crum Creek Dam appears to be in good condition.

National Dam Safety Program. Scott's Run Dam (NDI-PA 00725, PA DER 6-435), Delaware River Basin, Scott's Run, Berks County, Pennsylvania. Phase I Inspection Report

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ISBN 13 :
Total Pages : 68 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis National Dam Safety Program. Scott's Run Dam (NDI-PA 00725, PA DER 6-435), Delaware River Basin, Scott's Run, Berks County, Pennsylvania. Phase I Inspection Report by : O'BRIEN AND GERE ENGINEERS INC PHILADELPHIA PA JUSTIN AND COURTNEY DIV.

Download or read book National Dam Safety Program. Scott's Run Dam (NDI-PA 00725, PA DER 6-435), Delaware River Basin, Scott's Run, Berks 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 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scott's Run Dam is a zoned earth embankment, approximately 625 feet in length with a maximum height of 34 feet. The dam was constructed for recreational purposes and impounds a reservoir with a surface area of 21.9 acres and a storage capacity of 200 acre-feet at normal pool. The top of the dam is 14 feet wide and the side slopes are 3H:1V upstream and 2H:1V downstream. A cofferdam is incorporated into the upstream face of the embankment, forming a 28-foot wide berm from Elevation 582.0 to 584.0. The upstream slope is 2.5H:1V below the berm elevation. According to the information obtained from DER, the embankment is constructed in 3 zones. A central core section with 0.6H:1V side slopes is composed of selected impervious material (class 'A' material). A cutoff trench with 1H:1V side slopes and a 16-foot bottom width is excavated into impervious foundation material below the central core and is also composed of Class 'A' material. The upstream shell of the embankment consists of less impervious material (class 'B' material) and the downstream shell is composed of pervious material consisting of sand and some stones (class 'C' material). According to available information, a concrete cutoff wall extends through the cutoff trench and into the foundation material below the cutoff along the axis of the dam. Seepage control is provided by a downstream toe drain composed of gravel and small stone and an upstream impervious blanket (class 'A' material) which extends approximately 500 feet beyond the upstream toe.

Government Reports Annual Index

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ISBN 13 :
Total Pages : 1032 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Government Reports Annual Index by :

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.

National Dam Safety Program. Township Line Dam (NDI-PA 00625, PA DER 15-266) Delaware River Basin, East Branch of Chester Creek, Chester County, Pennsylvania. Phase 1 Inspection Report

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ISBN 13 :
Total Pages : 65 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis National Dam Safety Program. Township Line Dam (NDI-PA 00625, PA DER 15-266) Delaware River Basin, East Branch of Chester Creek, Chester County, Pennsylvania. Phase 1 Inspection Report by : John J. Williams

Download or read book National Dam Safety Program. Township Line Dam (NDI-PA 00625, PA DER 15-266) Delaware River Basin, East Branch of Chester Creek, Chester County, Pennsylvania. Phase 1 Inspection Report written by John J. Williams and published by . This book was released on 1979 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt: Township Line Dam is an earth embankment approximately 530 feet long with a height of 34 feet and crest width of 10 feet. The dam, originally constructed to impound and supply water for the Borough of West Chester, is presently being used for recreation, flood abatement and maintenance of a minimum discharge into the East Branch of Chester Creek. The concrete Ogee spillway has a crest width of 50 feet and is located at the south dam abutment. The spillway, for this 'Intermediate' size, 'High' hazard dam, is capable of discharging 48 percent of the PMF without overtopping of the earth embankment. A review of the hydrologic analysis indicates that the embankment would be overtopped by 0.15 feet for about 2 hours during a flood equal to 50 percent of the PMF. It is considered unlikely that the dam would fail during this event; therefore, the spillway is classified as 'Inadequate', but not 'Seriously Inadequate'. Based upon visual observations, review of the information obtained from the Pennsylvania Department of Environmental Resources, Division of Dam Safety, and conversations with the Owner's representative, Township Line Dam is considered to be in fair condition. However, the detection of potentially unstable conditions at this site was severely restricted due to thick vegetation covering the entire embankment. Certain conditions require further investigations, maintenance, or monitoring.

National Dam Safety Program. Robert G. Struble Dam (NDI-PA 00621, PA DER 15-298, SCS PA-431), Delaware River Basin, East Branch Brandywine Creek, Chester County, Pennsylvania. Phase I Inspection Report

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ISBN 13 :
Total Pages : 64 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis National Dam Safety Program. Robert G. Struble Dam (NDI-PA 00621, PA DER 15-298, SCS PA-431), Delaware River Basin, East Branch Brandywine Creek, Chester County, Pennsylvania. Phase I Inspection Report by : O'BRIEN AND GERE ENGINEERS INC PHILADELPHIA PA JUSTIN AND COURTNEY DIV.

Download or read book National Dam Safety Program. Robert G. Struble Dam (NDI-PA 00621, PA DER 15-298, SCS PA-431), Delaware River Basin, East Branch Brandywine Creek, Chester 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 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: Struble Dam is a zoned earth embankment, approximately 1,500 feet in length with a maximum height of 31 feet. The dam, a multiple purpose structure, was constructed as a portion of the Brandywine Creek Watershed Project. The reservoir has a normal pool storage capacity of 1,025 acre-feet for sediment accumulation and fish and wildlife. The normal pool surface area is 146 acres. An additional storage capacity of 596 acre-feet is utilized for flood water control. The top of dam elevation is 625.5, the crest width is 14 feet, and the side slopes are 3 horizontal to 1 vertical (3H:1V) upstream and 2.5H:1V downstream. A 12-foot wide berm is provided on the upstream face at Elevation 612.8 and the slope is lined with 18-inch thick riprap from the berm to Elevation 618.8. According to the 'As-Built' plans, the upstream and central portions of the embankment are composed of Zone I material, which is classified as a clayey silt. The central portion includes a cutoff trench with a 12-foot bottom width. The downstream shell (to Elevation 615.8) of Zone II material is classified as silty sand. The two zones are separated by a four-foot wide chimney drain which terminates in a drain trench at the downstream toe of the Zone I material.

National Dam Safety Program. Poe Dam (NDI I.D. Number PA-00471, Penn Der I.D. Number 14-105), Susquehanna River Basin, Big Poe Creek, Centre County, Pennsylvania. Phase I Inspection Report

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ISBN 13 :
Total Pages : 79 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis National Dam Safety Program. Poe Dam (NDI I.D. Number PA-00471, Penn Der I.D. Number 14-105), Susquehanna River Basin, Big Poe Creek, Centre County, Pennsylvania. Phase I Inspection Report by : Bernard M. Mihalcin

Download or read book National Dam Safety Program. Poe Dam (NDI I.D. Number PA-00471, Penn Der I.D. Number 14-105), Susquehanna River Basin, Big Poe Creek, Centre County, Pennsylvania. Phase I Inspection Report written by Bernard M. Mihalcin and published by . This book was released on 1980 with total page 79 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 good condition. The size classification is considered to be high. In accordance with recommended guidelines, the Spillway Design Flood (SDF) for this facility ranges between the 1/2 PMF (Probable Maximum Flood) and the PMF. Due to the high potential for damage to downstream structures and possibly loss of life, the SDF is considered to be the PMF. Results of the hydrologic and hydraulic analysis is indicate the facility will pass and/or store approximately 75 percent of the PMF prior to embankment overtopping. As a result, the spillway is deemed inadequate, but not seriously inadequate.

National Dam Safety Program. Lake Ontelaunee Dam (National I.D. Number PA-00709), Schuylkill River Basin, Maiden Creek, Berks County, Pennsylvania. Phase I Inspection Report

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ISBN 13 :
Total Pages : 60 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis National Dam Safety Program. Lake Ontelaunee Dam (National I.D. Number PA-00709), Schuylkill River Basin, Maiden Creek, Berks County, Pennsylvania. Phase I Inspection Report by : John H Frederick (Jr)

Download or read book National Dam Safety Program. Lake Ontelaunee Dam (National I.D. Number PA-00709), Schuylkill River Basin, Maiden Creek, Berks County, Pennsylvania. Phase I Inspection Report written by John H Frederick (Jr) and published by . This book was released on 1978 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Phase I investigation described in this report was made as a part of the National Dam Safety Program. This program is being implemented by the Secretary of the Army, through the Corps of Engineers, in response to the National Dam Inspection Act, Public Law 92-367, dated August 8, 1972. The purpose of this Phase I investigation was to determine, by visual inspection, whether a need exists to implement emergency measures to counteract an existing condition or conditions deemed to pose immediate hazards to human life or property.

National Dam Safety Program. Kahle Lake Dam (NDI Number PA-00825, Penn DER Number 61-20), Ohio River Basin, Mill Creek, Venango County, Pennsylvania. Phase I Inspection Report

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ISBN 13 :
Total Pages : 87 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis National Dam Safety Program. Kahle Lake Dam (NDI Number PA-00825, Penn DER Number 61-20), Ohio River Basin, Mill Creek, Venango County, Pennsylvania. Phase I Inspection Report by : Chuan Yuan Chen

Download or read book National Dam Safety Program. Kahle Lake Dam (NDI Number PA-00825, Penn DER Number 61-20), Ohio River Basin, Mill Creek, Venango County, Pennsylvania. Phase I Inspection Report written by Chuan Yuan Chen and published by . This book was released on 1979 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt: Kahle Lake Dam is a zoned, earthfill embankment with a maximum height of 45 feet and a total length between abutments of 1300 feet. The embankment has a crest width of 19 feet and side slopes of 3H:1V (Horizontal to Vertical) upstream and 2.5H:1V downstream. The upper 10 feet of the upstream slope is provided with 18 inch thick riprap for wave and ice protection. The auxiliary spillway, located in the left abutment, consists of a concrete weir, a concrete chute, and a stilling basin. The weir has an overall length of 81 feet with the crest elevation 6 feet below the top of dam. Flow over the weir discharges into a reinforced concrete chute. The chute width varies from 81 feet at the weir to 60 feet at the stilling basin. The bottom of the chute has a slope of 5H:1V and an overall length of 144.33 feet. Reinforced concrete training walls are provided from the weir to the end of the stilling basin.

National Dam Safety Program. Geist (Crum Creek) Storage Dam. Delaware County, Pennsylvania. (National I.D. Number PA-00348). Delaware River Basin. Phase I Inspection Report

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ISBN 13 :
Total Pages : 70 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis National Dam Safety Program. Geist (Crum Creek) Storage Dam. Delaware County, Pennsylvania. (National I.D. Number PA-00348). Delaware River Basin. Phase I Inspection Report by : WOODWARD-CLYDE CONSULTANTS PLYMOUTH MEETING PA.

Download or read book National Dam Safety Program. Geist (Crum Creek) Storage Dam. Delaware County, Pennsylvania. (National I.D. Number PA-00348). Delaware River Basin. Phase I Inspection Report written by WOODWARD-CLYDE CONSULTANTS PLYMOUTH MEETING PA. and published by . This book was released on 1978 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Phase I investigation described in this report was made as a part of the National Dam Safety Program. This program is being implemented by the Secretary of the Army, through the Corps of Engineers, in response to the National Dam Inspection Act, Public Law 92-367, dated August 8, 1972. The purpose of this inspection is to determine if the dam constitutes a hazard to human life or property.

National Dam Safety Program. Unnamed Tributary to Harmon Creek, NDI Number PA-01123 PennDER Number 63-81. SCS Number PA-485. Ohio River Basin. Washington County, Pennsylvania. Phase I Inspection Report

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ISBN 13 :
Total Pages : 96 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis National Dam Safety Program. Unnamed Tributary to Harmon Creek, NDI Number PA-01123 PennDER Number 63-81. SCS Number PA-485. Ohio River Basin. Washington County, Pennsylvania. Phase I Inspection Report by : John A. Dziubek

Download or read book National Dam Safety Program. Unnamed Tributary to Harmon Creek, NDI Number PA-01123 PennDER Number 63-81. SCS Number PA-485. Ohio River Basin. Washington County, Pennsylvania. Phase I Inspection Report written by John A. Dziubek and published by . This book was released on 1980 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: PA 485 is a zoned earthfill embankment with a total length of 630 feet, including the emergency spillway on the left abutment. The height and crest width of the embankment are 78 feet and 14 feet, respectively. The embankment was constructed using three zones of fill material. The principal spillway is a drop-inlet structure consisting of a two stage reinforced concrete riser connected to a 30 inch diameter reinforced concrete outlet pipe. The emergency spillway for the dam is located at the left abutment. It consists of a vegetated trapezoidal channel with a bottom width of 50 feet and 2H:1V side slopes. Hydrologic/hydraulic evaluations revealed that the spillway will pass the Probable Maximum Flood (PMF) without overtopping the dam. A spillway design flood (SDF) equal to the PMF is required for PA 485. The spillway is therefore considered to be 'adequate'. The visual inspection revealed several minor deficiencies which require remedial action by the owners of the dam.

National Dam Safety Program. Parker Dam (NDI Number PA 01126, PennDER Number 17-87), Susquehanna River Basin, Laurel Run, Clearfield County, Pennsylvania. Phase I Inspection Report

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ISBN 13 :
Total Pages : 71 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis National Dam Safety Program. Parker Dam (NDI Number PA 01126, PennDER Number 17-87), Susquehanna River Basin, Laurel Run, Clearfield County, Pennsylvania. Phase I Inspection Report by : John A. Dziubek

Download or read book National Dam Safety Program. Parker Dam (NDI Number PA 01126, PennDER Number 17-87), Susquehanna River Basin, Laurel Run, Clearfield County, Pennsylvania. Phase I Inspection Report written by John A. Dziubek and published by . This book was released on 1980 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: Parker Dam is classified as a 'Significant' hazard - 'Small' size dam. The dam and reservoir, owned by the Commonwealth of Pennsylvania, Department of Environmental Resources, are used for recreational purposes. The dam and appurtenant structures were found to be in good overall condition at the time of the inspection. A spillway design flood (SDF) in the range of the 100-year flood to the 1/2 Probable Maximum Flood (1/2 PMF) is required for Parker Dam. Since the dam is in the middle of the 'Small' size category according to storage capacity, the 1/2 PMF was selected as the SDF. Hydrologic/hydraulic evaluations, performed in accordance with procedures established by the Baltimore District of the U.S. Army Corps of Engineers, revealed that the available spillway capacity is much greater than the maximum flow expected during the SDF. Therefore, the dam will not be overtopped during the SDF and the spillways are considered to be 'adequate'.

National Dam Safety Program. Penn Nursery Dam (NDI I.D. Number PA-00470, Penn DER I.D. Number 14-117), Susquehanna River Basin, Potter Run, Centre County, Pennsylvania. Phase I Inspection Report

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ISBN 13 :
Total Pages : 82 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis National Dam Safety Program. Penn Nursery Dam (NDI I.D. Number PA-00470, Penn DER I.D. Number 14-117), Susquehanna River Basin, Potter Run, Centre County, Pennsylvania. Phase I Inspection Report by : Bernard M. Mihalcin

Download or read book National Dam Safety Program. Penn Nursery Dam (NDI I.D. Number PA-00470, Penn DER I.D. Number 14-117), Susquehanna River Basin, Potter Run, Centre County, Pennsylvania. Phase I Inspection Report written by Bernard M. Mihalcin and published by . This book was released on 1980 with total page 82 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 good 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 possibly loss of life, the SDF is considered to be the PMF. Results of the hydrologic and hydraulic analysis indicate the facility will pass and/or store approximately 92 percent of the PMF prior to embankment overtopping. Based on screening criteria contained in the recommended guidelines, the spillway is considered to be inadequate, but not seriously inadequate. Deficiencies noted by the inspection team included a seepage condition along a portion of the downstream embankment toe approximately 160 feet to the right of the left abutment hillside and a minor vertical crack in the concrete spillway overflow wall.