Download or read book National Dam Inspection Program Camp Delmont Dam NDI I D PA 00938 PA DER 46 244 Delaware River Basin Unami Creek Pennsylvania Phase I Inspection Report written by Peter C. Johnson and published by . This book was released on 1981 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt: Camp Delmont Dam is a concrete capped rockfilled timber crib structure with steel and timber sheetpile abutments about 190 feet long, with a maximum height of 19 feet. The dam has a maximum storage capacity of 236 acre feet and a maximum height of 19 feet which places it in the 'Small' size category. Because of the chance for appreciable damage to several cottages located downstream of the site and little chance for loss of life due to failure of the dam, the dam is judged to be a 'Significant' hazard structure. Due to the inhabitable dwellings located downstream of the dam, fifty percent of the Probable Maximum Flood (PMF) was selected as the appropriate Spillway Design Flood (SDF). An examination of the results of the hydrologic and hydraulic analyses indicates that the spillway and adjacent roadway are capable of passing 36% of the PMF without overtopping the dam abutments. The selected SDF for the dam is fifty percent of the PMF. Since the spillway is not capable of passing the SDF, the spillway is classified as 'Inadequate'. Further examination of the hydrologic and hydraulic analyses indicates that the spillway and adjacent roadway are capable of passing the 100 year event without overtopping the dam abutments. Based on visual observations and a review of the information obtained from Pennsylvania Department of Environmental Resources, Camp Delmont Dam appears to be in good condition.
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 Government Reports Annual Index written by and published by . This book was released on 1981 with total page 948 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 with total page 1070 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Roundup Miracle of the Musselshell written by and published by . This book was released on 1958 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Dam Inspection Program Deep Creek Dam NDS I D Number PA 00200 DER I D Number 46 8 Delaware River Basin Deep Creek Montgomery County Pennsylvania Phase I Inspection Report written by Mary F. Beck and published by . This book was released on 1980 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: Deep Creek Dam is owned by the Montgomery County Commissioners and maintained by the Parks Department. The dam and reservoir are used for recreational purposes. The dam and its appurtenant facilities are considered to be in fair condition. The dam is classified as a Small size structure with a High hazard classification consistent with its potential in the event of sudden failure for extensive property and loss of life downstream along Perkiomen Creek. In accordance with criteria established by Federal (OCE) Guidelines, the spillway design flood for this 'Small' size dam and 'High' hazard classification is 0.5 to the full Probable Maximum Flood (PMF). As the total storage capacity is nearer the lower limited for the Small size classification, and as the watershed controlled by Deep Creek Dam is small compared to the watershed controlled by downstream knight Dam, the selected spillway design flood is 0.5 PMF. Hydrologic and hydraulic calculations indicate that the spillway structure is capable of discharging about 0.21 PMF without overtopping the embankment at the right abutment. If the right abutment and embankment were raised to the original design elevation, the spillway would be capable of discharging about 0.38 PMF without overtopping. The 0.4 PMF is judged to cause failure of the embankment by overtopping, but failure does not significantly increase the danger to human life or property; thus, the spillway rating for this structure is considered to be Inadequate but not Seriously Inadequate.
Download or read book National Dam Inspection Program Solebury Farm Dam NDI ID PA 00944 PA DER 9 152 Delaware River Basin Honey Hollow Creek Pennsylvania Phase I Inspection Report written by O'BRIEN AND GERE ENGINEERS INC PHILADELPHIA PA. and published by . This book was released on 1981 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solebury Farm Dam is located on Honey Hollow Creek in Solebury Township, Bucks County, Pennsylvania. At the time of the inspection, the water surface was approximately one inch above the spillway crest. The overall appearance of the dam is fair, although the thick overgrowth on the dam made a complete visual assessment difficult. The alignment of the upstream embankment face appears to be good. Although no slope protection exists, no distressed areas were noted. The vertical alignment of the top of the dam varies approximately one foot over the 150 foot length of the dam with the design top of the dam being the low point. The downstream embankment face appears to be uniform. No areas of slope failure were noted. Seepage estimated at 2 gpm was evident about 10 feet from the toe of the dam and 20 feet from the spillway outlet channel. The seepage appeared to be clear at the time of the inspection. The entire embankment is overgrown with trees and brush. Trunk diameters range up to 12 inches with heights approaching 30 feet. The spillway is excavated into bedrock which appears to be resistant to weathering. No areas of scour or rock deterioration were observed.
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 National Dam Inspection Program Lake Akiba Dam NDI ID PA 00640 PA DER 45 120 Delaware River Basin Sandspring Creek Pennsylvania Phase I Inspection Report written by and published by . This book was released on 1981 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lake Akiba Dam is a 360-foot long, 22-foot high earth embankment dam, constructed in 1926 to provide a lake for recreational use. The maximum storage capacity of Lake Akiba is 280 acre-feet. The dam has a crest width of approximately seven feet and side slopes both upstream and downstream which average 2H:1V. Based upon the visual inspection of the dam review of the information provided by the Pennsylvania Department of Environmental Resources (Der), the Lake Akiba Dam is considered to be in fair condition. The spillway, however, is in poor condition an should be investigated immediately.
Download or read book National Dam Inspection Program Lake Quinn Dam NDI ID Number PA 00145 DER ID Number 64 43 Delaware River Basin Tributary of 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 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: The visual inspection and review of available design and construction information indicate that Lake Quinn Dam is in fair condition. Deficiencies noted during the inspection included the lack of functional drawdown facilities and minor seepage through the masonry near the right abutment. Based on the size and hazard classification of the dam, the recommended Spillway Design Flood (SDF) varies between 1/2 the Probable Maximum Flood (PMF) and the PMF. The 1/2 PMF has been selected as the SDF due to the size of the dam and reservoir, and the downstream conditions. The hydrologic and hydraulic computations indicate that the combination of reservoir storage and spillway discharge capacity will pass only 3 percent of the PMF without overtopping the dam. Overtopping the dam could cause failure, which would lead to a significant increase in downstream loss of life and property damage. Therefore, the spillway for Lake Quinn Dam is considered to be seriously inadequate, and the dam is judged to be unsafe, non-emergency.
Download or read book National Dam Inspection Program Freethy Dam NDI ID Number PA 00171 DER ID Number 64 160 Delaware River Basin Carley Brook Wayne County Pennsylvania Phase I Inspection Report written by Frederick Futchko and published by . This book was released on 1981 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on the criteria established for these studies, Freethy 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. Based on the size of the dam and reservoir, the 1/2 PMF is selected as the SDF. The existing spillway will pass only about 2 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 during storms of only 20 percent of the PMF. Failure of the dam would cause an increased hazard for loss of life downstream. Overall, the dam is judged to be in good condition.
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.
Download or read book National Dam Inspection Program Mountain Springs Lake Dam NDI ID Number PA 00770 DER ID Number 45 42 Delaware River Basin Appenzell Creek Monroe County Pennsylvania Phase I Inspection Report written by Jack B. Rader and published by . This book was released on 1980 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on visual inspection, available records, calculations and past operational performance, and according to criteria established for these studies, Mountain Springs Lake Dam is judged to be unsafe, non-emergency, because the spillway capacity is rated as seriously inadequate. The existing spillway will pass only about 10 percent of the Probable Maximum Flood (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. Failure of the dam would cause an increased hazard for loss of life downstream. As a whole, the dam is judged to be in fair condition. No stability problems were evident for the dam or appurtenant structures. The ability of the outlet works to function is unknown. There are no known upstream closure facilities. Maintenance of the dam is not adequate. Both the dam and the dike are overgrown with trees.
Download or read book National Dam Inspection Program Trout Lake Dam NDI ID Number PA 00769 DER ID Number 45 43 Delaware River Basin Appenzell Creek Monroe County Pennsylvania Phase I Inspection Reports 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 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: Trout Lake Dam is an earth embankment dam with a concrete overflow spillway. The dam is approximately 390 feet long and has a maximum height of about 24 feet. The dam is located along Pennsylvania Route 715, about 1 mile south of Reeders, Pennsylvania. The spillway is capable of discharging 25 percent of the Probable Maximum Flood (PMF) without overtoppong of the earth embankment. Failure of the dam would significantly increase the hazard to loss of life downstream of the dam. Therefore, the spillway is classified as 'seriously inadequate' and the dam is classified as 'unsafe(non-emergency)'. The spillway capacity should be increased. Further detailed hydrologic and hydraulic studies should be performed prior to the design of additional spillway capacity. Based on visual observations and review of the information obtained from the Pennsylvania Department of Environmental Resources, Dam Safety Section, Trout Lake Dam is considered to be in poor condition.
Download or read book National Dam Inspection Program Lake Como Dam NDI ID Number PA 00130 DER ID Number 64 16 Delaware River Basin Kinneyville Creek Wayne County Pennsylvania Phase I Inspection Report written by and published by . This book was released on 1981 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lake Como Dam is a composite structure consisting of an upstream earth embankment and a downstream near-vertical stone wall. The dam is 12.2 feet high and 196 feet long, including spillway. The spillway is located near the middle of the dam, consisting of a 28.3-foot long sharp crested concrete weir, terminating with vertical concrete endwalls. There are no facilities to drain the reservoir. Based on visual inspection, field survey, available records, calculations and past operational performance, Lake Como Dam is judged to be in fair condition. Because the spillway capacity of 535 cfs is less than the estimated 1240 cfs peak discharge of the 100-year flood, the spillway capacity is rated as inadequate. Considering the rotted condition of the plank sheeting to the right of the spillway wall, further deterioration of the sheeting may cause leakage and the stability of the dam could, in time, be affected.
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 Green Lane Reservoir Dam NDI PA 00618 PA DER 46 250 Delaware River Basin Perkiomen Creek Montgomery County Pennsylvania Phase I Inspection Report written by D'APPOLONIA CONSULTING ENGINEERS INC PITTSBURGH PA. and published by . This book was released on 1979 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt: Green Lane Reservoir Dam is a concrete gravity structure approximately 780 feet long, with a maximum height of about 87 feet. A 424 foot upgated spillway (crest Elevation 286.0) is centered along the length of the dam. The non-overflow section (Elevation 297.0) has a top width of 14 feet. Below Elevation 281.0, the upstream slope is battered on a 1 horizontal to 14.55 vertical (1H:14.55V); the downstream slope is 1H:1.35V. Both faces are vertical above Elevation 281.0. A 3-foot high parapet has been constructed on the non-overflow section. The dam is founded on firm bedrock. The foundation rock was mass grouted to depths up to 30 feet to reduce loss of water through seepage. The non-overflow sections are founded in rock on both sides of the stream valley. This rock has also been grouted to reduce seepage. The spillway is a concrete Ogee with a maximum height of approximately 77 feet. A flip bucket type energy dissipator with a 25-foot radius has been constructed at the toe of the spillway. Training walls extend downstream from the dam on both sides of the spillway. The walls are constructed to Elevation 255.0 and retain and protect the channel banks immediately below the dam. A water intake facility is located in the non-overflow section at the north end of the spillway. The intake is separated into two parallel chambers by an internal wall. Flow can be directed between the two chambers by a 36-inch sluice gate positioned in the wall. Openings at four different stages control water entering the intake. Each opening is fitted with a removable screen to prevent debris from entering.
