Download or read book National Dam Inspection Program Tamarack Lake Dam A NDI PA 00181 PennDER No 20 47A SCS No PA 461A Ohio River Basin Mill Run Crawford County Commonwealth of Pennsylvania Phase I Inspection Report written by C. Y. Chen and published by . This book was released on 1979 with total page 95 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tamarack Lake is impounded by two separate dams at opposite ends of the reservoir. Tamarack Lake Dam 'A' is located at the northern end of the reservoir and consists of a main embankment, emergency spillway channel, riser intake and outlet conduit, and a diversion dam located to the left of the emergency spillway channel. Tamarack Lake Dam 'B' is located at the southern end of the reservoir and consists of a main embankment, emergency spillway channel, riser intake and outlet conduit, and a saddle dike located to the left of the emergency spillway channel. Tamarack Lake Dam 'A' is 22 feet high and approximately 1000 feet long. A clay core and cutoff trench extend throughout the length of the dam. The minimum width of the core and cutoff trench is 10 feet. The cutoff trench varies in depth below the original ground surface from 4 to 13 feet with the lowest elevation (1195.0 feet) near the location of the outlet conduit.
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 with total page 1354 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 1979 with total page 948 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 Government Reports Annual Index Keyword A L written by and published by . This book was released on 1979 with total page 1324 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Dam Inspection Program Meadville Dam NDI Number PA 00177 PennDER Number 20 48 SCS Number PA 460 Ohio River Basin Mill Run Crawford County Pennsylvania Phase I Inspection Report written by Chuan Yuan Chen and published by . This book was released on 1979 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: Meadville Dam, locally known as Rainbow Lake, is a zoned earthfill dam with a crest height of 40 feet and an embankment length of 420 feet. The upstream face has a slope of 3H:1V (Horizontal to Vertical) with a 10-foot wide berm at E1. 1164.0 feet. This berm provides access to the riser unit. The downstream face has a slope of 2H:1V. The crest of the embankment is 15 feet wide. A cutoff trench is provided in the embankment, with a minimum depth of 3 feet and a bottom width of 12 feet. The protective dike around adjacent Meadville High School is also a zoned earthfill embankment. The upstream face near the auxiliary spillway has a slope of 3H:1V and the downstream face has a slope of 2H:1V. After a transition section at original Station 12+00, both the upstream and downstream slopes are 5H:1V. The dike has an approximate crest length of 1335 feet (excluding the auxiliary spillway).
Download or read book National Dam Inspection Program PA 474 PA No Name Number 35 NDI Number PA 00249 PennDer Number 43 50 SCS Number PA 474 Ohio River Basin Saw Mill Run Mercer County Pennsylvania Phase I Inspection Report written by Chuan Yuan Chen and published by . This book was released on 1979 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: PA 474 (also referred to as PA No Name No. 35) was designed by the U.S. Department of Agriculture, Soil Conservation Service (SCS) for floodwater detention. The dam consists of a zoned earth embankment, a vegetated earth emergency spillway channel, a riser intake with a 36-inch diameter outlet conduit, and a saddle dike located to the right of the main embankment. The crest length of the main embankment is 1640 feet. The maximum height of the dam at the original steambed is 30 feet. The dam crest is at E1. 1264.3 feet and the top width is 14 feet. The inclination of the upstream face is 2.5H;1V (Horizontal to Vertical) with a 10-foot wide berm at E1. 1242 feet. The downstream slope is 2.5h:1V. A filter trench was installed in the downstream prism of the embankment from original Station 4+92 to 9+77. A portion of the filter trench is provided with 6-inch diameter filter drainpipe. The two outlets of the filter drainpipes exit into the impact basin approximately 1 foot downstream of the baffle wall. To the right of the main embankment is a small knoll which separates the saddle dike from the main embankment. This knoll consists primarily of sandy silt (ML) soils and is approximately 540-feet long between the two embankments. The crest length of the dike is 670 feet and the maximum height is 9 feet. The crest width of the homogeneous embankment (dike) is 14 feet. The inclination of both the upstream and downstream slopes of the dike is 2.5h:1V. (Author).
Download or read book National Dam Inspection Program Clear Lake Dam NDI ID Number PA 175 DER ID Number 20 3 Ohio River Basin East Branch Oil Creek Crawford County Pennsylvania Phase I Inspection Report written by R. Jeffrey Kimball and published by . This book was released on 1981 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inspection and review of data of the Clear Lake Dam did not reveal any problems which require emergency action. The dam appeared to be in poor condition and poorly maintained. The Clear Lake Dam is a high hazard-small size dam. The spillway design flood (SDF) for a dam of this size and classification is in the range of the 1/2 PMF to the 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 capable of controlling approximately 6% of the PMF. Based on criteria established by the Corps of Engineers, the spillway is termed seriously inadequate. Clear Lake Dam is classified as an unsafe non-emergency dam. A detailed stability and seepage analysis should be conducted by a registered professional engineer knowledgeable in dam design and construction and should be conducted in conjunction with a hydrologic and hydraulic analysis of the structure to increase spillway capacity and the stability of the structure. The method used to block the penstock should be investigated by a registered professional engineer knowledgeable in dam design and construction. Repairs should be conducted accordingly.
Download or read book National Dam Inspection Program Saul Run Dam NDI Number PA 00251 PennDER Njmber 43 48 Ohio River Basin Saul Run Mercer County Pennsylvania Phase I Inspection Report written by BAKER (MICHAEL) JR INC BEAVER PA. and published by . This book was released on 1979 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: Saul Run Dam, a flood water retarding dam designed by the U.S. Department of Agriculture, Soil Conservation Service (SCS), is also known by its SCS number PA-458. The homogeneous earth embankment has a crest length of approximately 1700 feet and a miximum hength///eight of about 40 feet. The dam crest at El. 1113.6 feet has a width of 16 feet. The upstream slope has an inclination of 3H:1V (horizontal:vertical) and an 8-foot wide berm at El. 1085 feet. The downstream slope with an inclination of 2.5H:1V also has an 8-foot wide berm at El. 1084 feet. A foundation cutoff trench with a base width of 12 feet, 1H:1V side slopes, a length of about 100 feet, and a depth of about 5 feet to bedrock was constructed in the valley bottom (Plate 5). Cutoff trenches of similiar cross-section were also constructed in the soil abutments (Plate 5). The outlet works (principal spillway in SCS terminology) consist of a reinforced concrete riser connected to a 24-inch diameter reinforced concrete pipe is located beneath the embankment in the valley bottom. The outlet pipe, with six reinforced concrete anti-seep collars, was installed on a concrete cradle founded on bedrock.
Download or read book National Dam Inspection Program Greenwalt Dam NDI Number PA 00476 PennDER Number 65 52 Ohio River Basin Crabtree Creek Westmoreland County Pennsylvania Phase I Inspection Report written by and published by . This book was released on 1980 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on a review of available design information and visual observations of conditions as they existed on the date of the field inspection, the general condition of the Greenwalt Dam is considered to be in an unsafe, non-emergency condition.
Download or read book National Dam Inspection Program Unnamed Tributary to Harmon Creek NDI Number PA 01125 PennDER Number 63 84 SCS Number PA 480 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 87 pages. Available in PDF, EPUB and Kindle. Book excerpt: PA 480 was designed by the U.S. Department of Agriculture, Soil Conservation Service (SCS) for floodwater detention. The total length of the dam is 555 feet, including the emergency spillway on the right abutement; the maximum height of the dam is 66 feet. 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 low-level inlet on the concrete riser is a 9 inch high by 15 inch wide orifice; this inlet maintains the normal pool level. There is 25.1 acre-feet of storage at normal pool level, all of which is reserved for a 50-year accumulation of sediment. Hydraulic/hydrologic evaluations, revealed that the spillway will pass the Probable Maximum Flood (PMF) without overtopping the dam. A spillway design flood (SDF) in the range of the 1/2 Probable Maximum Flood (1/2 PMF) to the PMF is required for PA 480. The 1/2 PMF was selected as the SDF. The spillway is therefore considered to be 'adequate'.
Download or read book National Dam Inspection Program Lake Oneida Dam NDI Number PA 272 Ohio River Basin Connoquesnessing Creek Butler County Pennsylvania Phase I Inspection Report written by GAI CONSULTANTS INC MONROEVILLE PA. and published by . This book was released on 1978 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lake Oneida Dam is an earthfill embankment with a concrete corewall and a steel sheetpile cutoff. The overall length of the embankment is approximately 830 feet and its maximum height is approximately 38 feet. The facility is equipped with a concrete spillway at the right abutment and 30-inch diameter blow-off and supply lines encased in concrete beneath the embankment. The lines are gated in a control tower located within the upstream slope near the embankment center. Access to the gate house is provided by a foot bridge.
Download or read book National Dam Safety Program Ward Run NDI Number PA 01124 PennDER Number 63 75 SCS Number PA 483 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 87 pages. Available in PDF, EPUB and Kindle. Book excerpt: PA 483 is a 74-foot high, zoned-earthfill floodwater retarding dam designed by the U.S. Department of Agriculture, Soil Conservation Service (SCS). The dam is owned and operated by the Washington County Commissioners. The dam consists of a 360 foot long embankment, a vegetated earth side channel emergency spillway, and an intake riser and outlet conduit (principal spillway). The dam and appurtenant structures were found to be in good overall condition at the time of the inspection. Hydraulic/hydrologic evaluations revealed that the spillway will pass the Probable Maximum Flood (PMF) without overtopping the dam. PA 483 is a 'High' hazard, 'Intermediate' size dam requiring evaluation for a spillway design flood (SDF) equal to the PMF. Therefore, the spillway is assessed as 'adequate.' The inspection revealed certain items of remedial work which should be performed immediately by the owner.
Download or read book National Dam Inspection Program Big Beaver Dam Pa No Name Number 14 NDI Number PA 00258 PennDER Number 4 11 Ohio River Basin Tributary of Clark s Run Beaver County Pennsylvania Phase I Inspection Report written by John A. Dziubek and published by . This book was released on 1980 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: Big Beaver Dam is an earth embankment with a maximum height of 25 feet and a total length of 320 feet. The spillway, located at the right abutment, consists of a cut stone lined broad crested weir and chute. The spillway crest is 9.6 feet long perpendicular to the flow and 12 feet long parallel to the flow. The chute has an overall width of 10 feet and a length of 75 feet; the spillway crest is located 3.5 feet below the low spot of the crest of the dam. The outlet works for the dam consist of an 8 inch cast-iron pipe with the upstream end submerged approximately 30 feet out from the center line of the dam. The dam was found to be in fair overall condition at the time of inspection. The spillway will pass approximately 37 percent of the Probable Maximum Flood (PMF) before overtopping will occur.
Download or read book National Dam Inspection Program Lake Saxony Dam NDI Number PA 01073 Penn DER Number 10 63 Ohio River Basin Sarver Run Butler County Pennsylvania Phase I Inspection Report written by ACKENHEIL AND ASSOCIATES INC PITTSBURGH PA. and published by . This book was released on 1981 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lake Saxony Dam is located across Sarver Run, in Jefferson Township, Butler County, Pennsylvania. The dam is approximately one mile east of Saxonburg, Pennsylvania. Lake Saxony Dam is classified as a 'high' hazard dam. In the event of a dam failure, at least nine inhabited dwellings on the floodplain below the dam would be subjected to possible damage and loss of more than a few lives could result. The field inspection of Lake Saxony Dam was performed on 2 December 1980, and consisted of: Visual observations of the embankment crest and slopes, groins and abutments; Visual observations of the principal and emergency spillways including intake structures, outlet structures, and approach and discharge channels; Visual observations of the embankment's downstream toe area including drainage channels and surficial conditions; Transit stadia field measurements of relative elevations along the embankment crest centerline, spillway, and across the embankment slopes; Visual observations of the reservoir shoreline and watershed; Visual observations of downstream conditions and evaluation of the downstream hazard potential. The visual observations and measurements were made during periods when the reservoir and tailwater were at normal operating levels.
Download or read book National Dam Inspection Program Butler s Lake Dam NDI Number PA 01067 PennDER Number 2 29 Ohio River Basin Drennen Branch Allegheny County Pennsylvania Phase I Inspection Report written by ACKENHEIL AND ASSOCIATES INC PITTSBURGH PA. and published by . This book was released on 1981 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of the investigation is to make a determination on whether or not the dam constitutes a hazard to human life or property. Butler's Lake Dam is classified as a 'high' hazard dam. Butler's Lake Dam is owned by Butler's Golf Course, Elizabeth, Pennsylvania 15037. The field inspection of the Butler's Lake Dam was performed on 11 December 1980, and consisted of: Visual observations of the embankment crest and slopes, groins and abutments; Visual observations of the principal (and emergency) spillway including approach and discharge channels and overflow crest; Visual observations of portions of the outlet works intake structure and conduit; Visual observations of the embankment's downstream toe area including drainage channels and surficial conditions; Visual observations of the reservoir shoreline, inlet stream channel, and watershed; Visual observations of downstream conditions and evaluation of the downstream hazard potential; Transit stadia surveys of relative elevations along the embankment crest centerline, spillway, and across the embankment slopes. The visual observations were made during periods when the reservoir was at normal operating level. There was no defined tailwater.
Download or read book National Dam Inspection Program Keystone Dam NDI Number PA 480 Ohio River Basin McCune Run Westmoreland County Pennsylvania Phase I Inspection Report written by GAI CONSULTANTS INC MONROEVILLE PA. and published by . This book was released on 1978 with total page 84 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 is to determine if the dam constitutes a hazard to human life or property.
