Download or read book National Program of Inspection of Non Federal Dams Tennessee Mary s Creek Dam Number 9 Inventory Number TN 15739 Wolf River Basin Near Cross Roads Shelby County Tennessee Phase I Investigation Report written by William Culbert (Jr) and published by . This book was released on 1981 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dam is a linear earthen structure 678 feet long and 23.7 feet high with a crest width of 10 feet. The upstream and downstream slopes are 1V:3.1H and 1V:3. OH respectively. The structure impounds a 10.5 acre lake at normal pool with 42 acre-feet of storage. At the top of the dam the pool area increases to 18 acres with an impoundage of 148 acre-feet. The drainage area is predominantly farmland, pasture, and woods. It has an average ground slope of approximately 5.7%. The embankment is well grassed and virtually free of undesirable vegetation. It has a relatively uniform cross section with well defined boundaries. Only minor erosion was observed on the embankment, along the upstream slope at the water surface and along the cattle trail traversing the dam.
Download or read book National Program of Inspection of Non Federal Dams Tennessee Marys Creek Dam Number 8 Inventory Number TN 15727 Wolf River Basin Near Cross Roads Shelby County Tennessee Phase I Investigation Report written by William Culbert (Jr) and published by . This book was released on 1981 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dam is uniform well grassed and clear of any deleterious vegetation. The upstream slope of the embankment shows appreciable sloughing near the principal spillway. Scattered minor depressions appear sporadically along the downstream slope, presumably the result of dispersive soil. There are no indications of seepage on the slope or in the area downstream of the dam. No signs of differential settlement or other slope instabilities were observed. Appreciable erosion occurs near the water surface and along the upstream left side slope, apparently the result of cattle congregating in these areas. The dam is in the high hazard potential and small size classifications. OCE guidelines require such dams to pass the one-half probable maximum flood (1/2 PMF) to full PMF. Hydraulic and hydrologic analyses reveal that the emergency spillway is capable of passing the 1/2 PMF without causing the dam to overtop not breach during the storm. The upstream dam will overtop under the 1/2 PMF. Should failure of the upstream dam occur, analysis indicates that Mary's Creek Dam will be overtopped by 0.2 feet for 1.8 hours. The dam is given a condition classification of 'deficient' because of the erosion near the emergency spillway entrance and elsewhere along the upstream slope.
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1982 with total page 1262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Marys Creek Dam No 9 written by and published by . This book was released on 1981 with total page 0 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 1982 with total page 1220 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 Phase 1 Investigation Report written by and published by . This book was released on 1981 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Program of Inspection of Non Federal Dams Tennessee Colonial Country Club 16th Hole Dam Inventory Number TN 15774 Wolf River Basin Near Memphis Shelby County Tennessee Phase I Investigation Report written by William E. Bush and published by . This book was released on 1981 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: Colonial Country Club-16th Hole Dam has a 4.5 acre lake and is located in Shelby County, Tennessee in the Countrywood subdivision, and is an earth fill embankment 25 feet high and 344 feet long. The crest varies from 10 feet to 15 feet in width. Facilities for discharge from the reservoir are located in the west abutment and include a timber covered concrete structure with a 5.3 foot by 0.77 foot opening that is located in the emergency spillway ten feet landward from the control section of the emergency spillway. The emergency spillway has a cross-tie weir nine feet long. Excess water not intercepted by the service spillway is carried in a swale located between the toe of the dam and the foundations of two houses. The embankment slopes are one vertical on three horizontal. The upstream slope is partially protected by light riprap. Both the upstream and downstream slopes have undesirable vegetation. The dam is in the small size category and has a downstream hazard potential classification of high by the Corps of Engineers and I by the State of Tennessee. On the basis of hydraulic analysis, the dam flood storage (15.7 acre-feet) and spillways are adequate to safely pass the 1/2 Probable Maximum Flood (PMF), which Office of the Chief of Engineers (OCE) Guidelines specify to be the design flood for a dam in the small size and high hazard categories. (Author).
Download or read book Government Reports Annual Index Keyword A L written by and published by . This book was released on 1982 with total page 1016 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Program of Inspection of Non Federal Dams Tennessee Nolan Lake Dam Inventory Number TN 15741 Mississippi River Basin Near Memphis Tennessee Shelby County Tennessee Phase I Investigation Report written by William E. Bush and published by . This book was released on 1981 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nolan Dam has an 8.44 acre lake and is located in Shelby County, Tennessee, south of Winchester Road and east of Ross Road, and is an earth fill embankment 14.7 feet high and 640 feet long. The crest varies from 9 feet to 12 feet in width. Facilities for discharge from the reservoir are located in the east abutment and include an inlet section with a bottom width of eight feet and vertical broken concrete masonary walls two feet high. The emergency spillway is crossed by a farm road approximately 50 feet from the entrance and the fill contains four 18 inch corrugated metal pipes protected by a concrete headwall on both sides of the road. A four inch cast iron draw down pipe with a gate valve at the discharge end is located at approximately the center of the dam. The embankment slopes are approximately 1V on 3H on 2.3H to the top of the dam on the upstream slope. Neither slope has undesirable vegetation. A broken concrete masonry wall provides the vertical section of the upstream slope. Nolan Dam is in the small size category and has a downstream hazard potential classification of high by the Corps of Engineers and I by the State of Tennessee.
Download or read book National Program of Inspection of Non Federal Dams Tennessee McNairy Cypress Creek Watershed Dam Number 17 Inventory Number TN 10908 Tuscumbia River Basin Near Selmer McNairy County Tennessee Phase I Investigation Report written by George E. Moore and published by . This book was released on 1981 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: McNairy Cypress Creek Dam Number 17 is located in McNairy County, Tennessee, about 0.5 miles east of Selmer. The dam is an earthfill embankment 34.1 feet high and 960 feet long with a crest width of 15 feet. The dam impounds a 13 acre lake. McNairy Cypress Creek Dam Number 17 is in the small size category and has a downstream hazard potential classification of 'high' under OCE guidelines and category 1 by the State of Tennessee. On the basis of hydraulic analysis, the dam has adequate storage/spillway capacity to pass the 1/2 probable maximum flood (PMF) under antecedent moisture condition III (AMC III). The 1/2 PMF is the minimum storm required under OCE guidelines for a dam in the small size and high hazard potential classifications. At this time, the dam is considered not deficient. It is recommended that any erosion be repaired and a soil binding grass cover established on the embankment.
Download or read book National Program of Inspection of Non Federal Dams Tennessee Jennings Creek Watershed Dam Number 15 Inventory Number TN 08705 Cumberland River Basin Near North Springs Jackson County Tennessee Phase I Investigation Report written by William Culbert (Jr) and published by . This book was released on 1981 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dam is a linear earthen structure 310 feet long and 44.7 feet high with a crest width of 14 feet. The upstream and downstream slopes are 2.6H:1V and 2.5H:1V respectively. The embankment is free of undesirable vegetation except for some scattered 1/2 - 2 in. diameter heavenwood trees. Most of these are at the downstream right toe and abutment tie-in. No signs of sliding, cracking, or differential settlement were observed on the dam or in the area immediately downstream. Erosion was insignificant. On the basis of a federal hazard potential classification of 'high' and an 'intermediate' size classification, the dam should pass the full Probable Maximum Flood (PMF) of 28.5 in. of rain falling in 6 hours. Analysis reveals that the dam will overtop by about 3.4 ft. for 1.8 hours during this storm. The 1/2 PMF will also overtop the structure. The dam received a condition classification of 'significantly deficient' because of its spillway limitations. It is recommended that a qualified engineer be engaged to develop project modifications that will allow the dam to pass the PMF and that the owner perform various maintenance operations.
Download or read book National Program of Inspection of Non Federal Dams Tennessee Chancellor Son Dam Inventory Number TN 06939 Hatchie River Basin Near Saulsbury Hardeman County Tennessee Phase I Investigation Report written by George E. Moore and published by . This book was released on 1981 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report is based on the findings of a Phase I inspection of Chancellor and Son Dam in Hardeman County. The earthfill embankment is 24 feet high and 550 feet long with a crest width of 15 feet. The service spillway is a 36 inch concrete culvert passing through the embankment near the crest. The drawdown drain is a 10 inch corrugated metal pipe with a slide gate at the inlet and a plug in the outlet. The emergency spillway is a triangular earth channel at the left end of the dam. The available data is insufficient to assess the potential affect of the seepage on the embankment. The reservoir has sufficient storage/spillway capacity to pass the PMF, but the embankment portion of the emergency spillway would probably deteriorate rapidly under high stage flows. Also, the service spillway is not properly designed to pass large flows. The spillways are therefore considered to be seriously inadequate. Because of these findings, Chancellor and Son Dam is considered to have a condition classification of 'unsafe nonemergency'.
Download or read book National Program of Inspection of Non Federal Dams Tennessee Lever Lake Dam Inventory Number TN 18708 Harpeth River Basin Near Kingston Springs Williamson County Tennessee Phase I Investigation Report written by William Culbert (Jr) and published by . This book was released on 1981 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dam is a linear earthen structure 163 feet long and 26.4 feet high with a crest width of 11 feet. The upstream and downstream slopes are both 1.4H:1V. The surface area of the lake is 3.7 acres at normal pool and 5.8 acres at the top of the dam. The 104 acre drainage area of the reservoir is predominantly woodland and meadow with an average ground slope of approximately 14%. Reportedly, water seeps slowly through fissures in the natural ground into a 0.4 acre lake 200 feet right of Lever. This dam was built for the purpose of maintaining pressure on the seeps and thereby maintaining the pool level of the larger lake. OCE guidelines recommend that small, high hazard dams such as Lever pass the one-half Probable Maximum Flood (1/2 PMF) to the full PMF. Analysis reveals that the dam will be overtopped by 0.6 feet for 0.6 hours under the 1/2 PMF. The reservoir contains the 100-year frequency storm maintaining 3 feet of freeboard. The dam is given a condition classification of 'unsafe - nonemergency' because of its spillway limitations and because the steepness of its downstream slope constitutes a stability concern. It is recommended that a qualified engineer be retained to study the embankment stability and the hydraulic limitations of the spillway and make recommendations for their correction.
Download or read book National Program of Inspection of Non Federal Dams Tennessee Grand Valley Dam Number 1 Inventory Number TN 06924 Hatchie River Basin Near Hickory Valley Hardeman County Tennessee Phase I Investigation Report written by William E. Bush and published by . This book was released on 1981 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: Grand Valley Dam No. 1 is located in Hardeman County, Tennessee several miles east of Hickory Valley, Tennessee and is an earth fill embankment 37 feet high and 1800 feet long. The crest width is 26 feet. Facilities for discharge from the reservoir are located near the south abutment and consist of a concrete service spillway 11 feet by 8 feet with two 9.0 foot by 0.83 feet openings and a 42 inch CM pipe barrel through the dam and an emergency spillway constructed as a low area in the top of the dam. The emergency spillway has gentle side slopes and a 50 foot wide bottom section. The entrance and exit slopes are 1V on 3H on the upstream slope and 1V on 4H on the downstream slope. No protection is provided for the exit slope. The upstream slope is vertical from the waterline for approximately two feet. The slope from that point to the crest is one vertical on three horizontal. The downstream slope is generally one vertical on four horizontal. Both the upstream and downstream slopes have ineffective vegetation. The dam is in the intermediate size category and has a downstream hazard potential classification of high by the USCE and 'I' by the State of Tennessee. On the basis of hydraulic analysis, the dam has flood storage (572 acre-feet) and spillways inadequate to safely pass the Probable Maximum Flood (PMF).
Download or read book National Program of Inspection of Non Federal Dams Tennessee Inventory Number TN 11101 Cumberland River Basin Jennings Creek Watershed Dam Number 16 Near North Springs Macon County Tennessee Phase I Investigation Report written by William Culbert (Jr) and published by . This book was released on 1981 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dam is a linear earthen structure 325 feet long and 47.1 feet high with a crest width of 13 feet. The upstream and downstream slopes are 2.4H:1V and 2.7H:1V respectively. It is in the intermediate size and high ahzard potential classifications. The lake area is 7 acres at normal pool, increasing to 23 acres at the top of the dam. The service spillway is a 2 ft x 6 ft (inside diameter) concrete riser with a 15-in. steel cylinder concrete pipe. The drawdown consists of a 16-in. diameter formed opening feeding into the riser controlled by a 24-in. slide headgate. The emergency spillway is an open channel excavated in rock at the right side of the embankment. It has a base width of 25 feet and is trapezoidal in shape. The dam is well grassed and free of undesirable vegetation. Its slopes are uniform and well defined and exhibit no signs of structural instability. Some minor erosion exists on the downstream slope in two areas where construction equipment and 4-wheel drive vehicles have destroyed the grass cover. No cracks, signs of seepage, sliding, or differential settlement were observed on the dam or in the area immediately downstream. The dam is given a safety classification of 'significantly deficient' because of its spillway limitations. It is recommended that a qualified engineer be engaged to develop project modifications that will allow the dam to pass the PMF, and that the owner perform various maintenance operations. (Author).
Download or read book National Program of Inspection of Non Federal Dams Tennessee Coon Creek Dam OFDBA Site 60 6 Inventory Number TN 04508 Obion River Basin Near Lenox Tennessee Dyer County Tennessee Phase I Investigation Report written by Robert Ramsey and published by . This book was released on 1981 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report is based on the findings of the Phase I investigation of OFDBA Site 60-6 on February 4, 1981 in accordance with 'Recommended Guidelines for Safety Inspection of Dams' Office of the Chief of Engineers. The earth dam is 54 feet high and 726 feet long with a crest width of 25 feet. At normal pool the dam impounds a 125 acre lake (2137 acre-feet) used for flood control. It is in the intermediate size and high hazard potential category. The downstream slope is 2.6H:1V and the upstream slope is 3H:1V. The embankment has moderate slopes and exhibited no signs of instability or uncontrolled seepage. Erosion is a major problem at this time as indicated by the presence of deep holes and gullies on the upper portion of the embankment and in the emergency spillway. Large holes were also observed below the right toe of the dam near the creek channel. The emergency spillway is a 250 foot wide grassed channel at the left abutment. There was no evidence that the spillway had ever carried flow. The principal spillway is a 36 inch diameter CMP riser with a 30 inch concrete pipe outlet. An 18 inch manually operated headgate is located at the base of the riser and is used to lower the lake level. A hydraulic and hydrologic analysis indicated that the spillway is capable of passing the recommended probable maximum flood (PMF). The dam is classified as 'unsafe non-emergency' due to the erosion on the embankment and the large holes just below the dam.
Download or read book National Program of Inspection of Non Federal Dams Tennessee Construction Products Dam Inventory Number TN 11320 Middle Fork Forked Deer River Basin Near Carroll Madison County Tennessee Phase I Investigation Report written by Robert Ramsey and published by . This book was released on 1981 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt: The earth dam is 15 ft. high, 675 ft. long, and has a crest width of 13 feet. It is in the small size and high hazard potential category. The dam impounds a 5.5 acre lake used for recreation and water supply. The embankment slopes are moderate and have a well established grass cover. Vehicles have cut deep ruts into the crest. The principal spillway is a 36 inch diameter CMP riser with a 30 inch diameter CMP outlet. A slide headgate is located at the base of the riser to regulate the lake level. The emergency spillway is a irregular shaped earth channel at the left abutment. The channel is relatively flat and in good condition. The dam is classified as 'significantly deficient' because the spillway will not safely pass the recommended one-half Probable Maximum Flood.
