Download or read book National Dam Safety Program Pogue Lake Dam MO 30127 Mississippi Kaskaskia St Louis Basin Madison County Missouri Phase I Inspection Report written by Jean-Yves Perez and published by . This book was released on 1981 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pogue Lake Dam is a curved earth embankment, convex downstream, approximately 440 ft long and 18 ft in height, impounding a lake used for recreational purposes. The embankment is grass-covered on the crest and downstream face. The spillway is located at the right abutment (as the observer faces downstream), there are no control structures in the spillway, and the concrete slab at the spillway is severely broken. A low level outlet is located near the left end of the dam. This outlet structure is an 18-in. diameter metal pipe with a guillotine gate at its downstream end. The discharge channels from both the spillway and the outlet are eroded to bedrock. Our inspection and evaluation indicate the dam to be in generally fair to poor condition. This evaluation is primarily based on the hydrologic analyses which indicate that a flood greater than 13 percent of the PMF will effectively overtop the dam.
Download or read book Technical Abstract Bulletin written by and published by . This book was released on 1981 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Dam Safety Program Newman Lake Dam MO 30488 Mississippi Kaskaskia St Louis Basin Madison County Missouri Phase I Inspection Report written by Richard G. Berggreen and published by . This book was released on 1981 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Newman Lake Dam is classified as a small earth dam, based on its height of approximately 25 ft and storage capacity of 140 ac-ft. The small dam classification criteria are: height between 25 and 40 ft, or storage capacity between 50 and 1000 ac-ft. The St. Louis District (SLD), Corps of Engineers, has classified this dam as having a high hazard potential. The SLD estimated damage zone length extends approximately 4 mi downstream. Within this estimated damage zone are several dwellings, a church, an electric transmission line, and a buried petroleum pipeline. The contents of the damage zone were verified by aerial reconnaissance. Based on the findings of the visual inspection and analysis of other data, the dam appears to be in generally fair condition. No evidence was noted of disruption of the vertical or horizontal alignment of the dam crest, sinkhole development, cracking, slumping or animal burrows. The downstream slope is considered to be quite steep, on the order of 1.5(H) to 1(V) at the maximum section. Some wave erosion has occurred along the upstream slope. Trees growing on the downstream slope, some of which have been cut down, are considered a deficiency. Seepage and stability analyses for this dam comparable to the 'Recommended Guidelines for Safety Inspection of Dams' are not on record, which is also considered a deficiency.
Download or read book National Dam Safety Program Spring Lake Dam MO 30725 Mississippi Kaskaskia St Louis Basin Washington County Missouri Phase I Inspection Report written by Richard G. Berggreen and published by . This book was released on 1980 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dam has been classified as unsafe, non-emergency by the St Louis District as a result of the application of the following criteria: (a) Spillway will not pass 50 percent of the Probable Maximum Flood without overtopping the dam; (b) Overtopping of the dam could result in failure of the dam; and (c) Dam failure significantly increases the hazard to loss of life downstream.
Download or read book National Dam Safety Program Smitty s Catfish Pond Dam MO 30613 Mississippi Kaskaskia St Louis Basin Madison County Missouri Phase I Inspection Report written by Jean-Yves Perez and published by . This book was released on 1981 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: Smitty's Catfish Pond Dam is an earth dam impounding a lake used for recreational purposes. The embankment is constructed of locally-obtained, rocky, silty and clayey soil. The spillway is a vertical concrete wall near the maximum section. The downstream channel flows out of a small stilling pool at the toe of the spillway directly into the natural streambed for Greasy Creek. No control structures are present at this spillway. The results of the visual inspection indicate the dam is in generally poor condition. A small slump with a volume of 2 to 3 cu yd was noted on the downstream slope of the dam. This appeared to be a recent feature. The downstream slope is quite steep, generally 1.8(H) to 1(V), but is locally steeper than 1(H) to 1(V), and is judged to be only marginally stable. Animal burrows, to 8-in. in diameter, were noted at several locations on the downstream slope. Trees growing on the embankment could provide piping paths through the dam. Hydraulic and hydrologic analyses indicate the dam will be overtopped by a flood greater than 23 percent of the Probable Maximum Flood (PMF).
Download or read book National Dam Safety Program PJ s Bass Lake Dam MO 31189 Mississippi Kaskaskia St Louis Basin St Francois County Missouri Phase I Inspection Report written by Richard G. Berggreen and published by . This book was released on 1981 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dam has been classified as unsafe, non-emergency by the St. Louis District as a result of the application of the following criteria: (a) Spillway will not pass 50 percent of the Probable Maximum Flood without overtopping the dam; (b) Overtopping of the dam could result in failure of the dam; and (c) Dam failure significantly increases the hazard to loss of life downstream.
Download or read book National Dam Safety Program Mach Lake Dam MO 30133 Mississippi Kaskaskia St Louis River Basin Perry County Missouri Phase I Inspection Report written by Steven L. Brady and published by . This book was released on 1981 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this inspection was to make an assessment of the general condition of the dam with respect to safety, based upon available data and visual inspection, in order to determine if the dam poses hazards to human life or property. The inspection and evaluation indicates that the combined spillways do not meet the criteria set forth in the guidelines for a dam having the above size and hazard potential. The combined spillways will pass 14 percent of the Probable Maximum Flood without overtopping. The Probable Maximum Flood is defined as the flood discharge that may be expected from the most severe combination of critical meteorologic and hydrologic conditions that are reasonably possible in the region. The guidelines require that a dam of small size with a high downstream hazard potential pass 50 to 100 percent of the PMF. Considering the low height of dam (33 feet) and the small storage capacity (103 acre-ft), fifty percent of the PMF has been determined to be the appropriate spillway design flood. The 100-year flood (1 percent probability flood) will not overtop the dam. The 1 percent probability flood is one that has a 1 percent chance of being exceeded in any given year.
Download or read book National Dam Safety Program Pierce Lake Dam MO 30999 Mississippi Kaskaskia St Louis Basin Washington County Missouri Phase I Inspection Report written by Richard G. Berggreen and published by . This book was released on 1980 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Pierce Lake Dam, Missouri Inventory Number 30999, was inspected. This dam is classified as small due to its 37 ft height and storage capacity of 681 ac-ft. A small dam is one which is less than 40 ft in height and impounds less than 1000 ac-ft of storage. The St. Louis District, Corps of Engineers, has classified this dam high hazard; we concur with this classification. The estimated damage zone, as determined by the St. Louis District, Corps of Engineers, extends approximately five miles downstream. The community of Richwoods and several other occupied structures are located within the estimated damage zone. The inspection and evaluation indicate that the dam is in generally poor condition. Specific deficiencies that were noted are insufficient spillway capacity, very steep downstream slope, high erodibility of the embankment materials and lack of maintenance and periodic inspections. Also deemed as a deficiency is the lack of any stability or seepage analyses.
Download or read book National Dam Safety Program Spring Lake Dam MO 31180 Mississippi Kaskaskia St Louis River Basin Cape Girardeau County Missouri Phase I Inspection Report written by Nathan Wilcoxon and published by . This book was released on 1981 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spring Lake Dam is an earthfill structure approximately 21 feet high and 400 feet long at the crest. The appurtenant works consist of a drop-inlet pipe principal spillway and a trapezoidal channel cut into natural ground at the left abutment which acts as an emergency spillway. Our inspection and evaluation indicates that the spillway has not met the criteria set forth in the guidelines for a small size dam in the high hazard potential category. This structure has the capability to hold and pass approximately 40 percent of the Probable Maximum Flood (PMF) before overtopping. The dam appeared to be in fair condition. Deficiencies visually observed by the inspection team were: (1) a row of trees (approximately 8) along the upstream face of the dam; (2) a significant potential for restriction to flow into the principal spillway intake; (3) some minor erosion on the downstream face of the dam; (4) the emergency spillway channel is partially obstructed by six steel drums and a fence; and (5) minor seepage into the principal spillway conduit from within the embankment.
Download or read book National Dam Safety Program Ellis Lake Dam MO 31067 Mississippi Kaskaskia St Louis River Basin Perry County Missouri Phase I Inspection Report written by Steve Brady and published by . This book was released on 1981 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ellis Lake Dam was inspected by an interdisciplinary team of engineers. The purpose of the inspection was to make an assessment of the general condition of the dam with respect to safety, based upon available data and visual inspection, in order to determine if the dam poses hazards to human life or property. Our inspection and evaluation indicates that the combined spillways do not meet the criteria set forth in the guidelines for a dam of its size and hazard potential. The combined spillways will pass 13 percent of the Probable Maximum Flood without overtopping. The Probable Maximum Flood is defined as the flood discharge that may be expected from the most severe combination of critical meteorologic and hydrologic conditions that are reasonably possible in the region. The guidelines require that a dam of small size with a high downstream hazard potential pass 50 to 100 percent of the PMF. Considering the low height of the dam and the small storage capacity, 50 percent of the PMF has been determined to be the appropriate spillway design flood. The 1 percent probability flood will not overtop the dam. The 1 percent probability flood is one that has a 1 percent chance of being exceeded in any given year.
Download or read book Government Reports Annual Index written by and published by . This book was released on 1982 with total page 1008 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 Safety Program Powder Spring Lake Dam MO 30749 Mississippi Kaskaskia St Louis Basin Washington County Missouri Phase I Inspection Report written by Karl L. Freese and published by . This book was released on 1980 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: THIS REPORT WAS PREPARED UNDER THE National Program of Inspection of Non-Federal Dams. This report assesses the general condition of the dam with respect to safety, based on available data and on visual inspection, to determine if the dam poses hazards to human life or property. (Author).
Download or read book National Dam Safety Program Lake Boutin Dam MO 40008 Mississippi Kaskaskia St Louis River Basin Cape Girardeau County Missouri Phase I Inspection Report written by Nathan Wilcoxon and published by . This book was released on 1981 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lake Boutin Dam is an earthfill structure approximately 45.5 feet high and 674 feet long at the crest. The dam has no drawdown facilities and the spillway is a trapezoidal channel cut into natural ground at the left abutment. Our inspection and hydrologic and hydraulic analyses indicate that the spillway capacity of the dam does not meet the criteria set forth in the guidelines for a dam having the above size and hazard potential. The dam will hold and pass approximately 50 percent of the Probable Maximum Flood (PMF) without overtopping. The overall condition of the dam appeared to be poor and several deficiencies were noted during the inspection.
Download or read book National Dam Safety Program B K Lake Number 1 Dam MO 30506 Mississippi Kaskaskia St Louis Basin Warren County Missouri Phase I Inspection Report written by Walter G. Shifrin and published by . This book was released on 1979 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on the criteria in the guidelines, the dam is in the high hazard potential classification, which means that loss of life and appreciable property loss could occur in the event of failure of the dam. Within the estimated five mile damage zone downstream of the dam are seven houses, six buildings, and one road crossing which may be subjected to flooding, with possible damage and/or destruction, and possible loss of life. B & K Lake No. 1 Dam is in the small size classification since it is less than 40 feet high and impounds less than 1,000 acre-feet of water. B & K Lake No. 1 Dam being a small size dam with a high hazard potential, is required by the guidelines to pass from one-half of the Probable Maximum Flood to the Probable Maximum Flood without overtopping. Since there is high hazard potential downstream of the dam, the appropriate spillway design flood for this dam is the Probable Maximum Flood. It was determined that the reservoir/spillway system can accommodate 17 percent of the Probable Maximum Flood without overtopping the dam. Our evaluation also indicates that the reservoir/spillway system can accommodate the 100-year flood without overtopping the dam.
Download or read book National Dam Safety Program Allgeyer Lake Dam MO 30376 Mississippi Kaskaskia St Louis Basin Montgomery County Missouri Phase I Inspection Report written by Rey S. Decker and published by . This book was released on 1979 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of the inspection was to make an assessment of the general condition of the dam with respect to safety, based upon available data and visual inspection, in order to determine if the dam poses hazards to human life or property. The inspection and evaluation indicates that the spillways do not meet the criteria set forth in the recommended guidelines for a small dam having a high hazard potential. Considering the small volume of water impounded and the large floodplain downstream one-half of the Probable Maximum Flood is the appropriate spillway design flood. The spillways will not pass the 100-year flood (flood having a one percent chance of being exceeded in any year) without overtopping the dam. The spillways will pass 7% of the Probable Maximum Flood without overtopping the dam. The Probable Maximum Flood (PMF) is defined as the flood that may be expected from the most severe combination of critical meteorologic and hydrologic conditions that are reasonably possible in the region.
Download or read book National Dam Safety Program Dresser Number 4 Dam MO 30474 Mississippi Kaskaskia St Louis Basin Washington County Missouri Phase I Inspection Report written by Kenneth B. King and published by . This book was released on 1979 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of Dresser No. 4 Dam is to impound tailings from a barite separation and beneficiation operation. The dam completely encircles the impoundment except for a 300-foot wide breach at the north (up-stream) end where the structure failed in 1975. The dam cannot retain water in its present state because of this breach in the dam. This dam is classified as large. The U.S. Corps of Engineers has classified it as having a high downstream hazard potential to indicate that failure of this dam could threaten life and property. The damage zone, estimated by the U.S. Corps of Engineers, extends about 6 miles downstream of the dam. Since the embankment cannot retain water, the overtopping potential of the embankment was not analyzed. Instead, studies were made to estimate the amount of flow that could occur in the diversion ditch (located to the west and south of the impoundment) under different flood conditions. It was calculated that the diversion ditch could pass a 100-year flood probably without significant erosion of the ditch or adjacent embankment toe. However, it was estimated that the ditch cannot pass 50 percent of the Probable Maximum Flood without significant erosion of the ditch and adjacent embankment materials.
Download or read book National Dam Safety Program Dorlac Lake Dam MO 30731 Mississippi Kaskaskia St Louis Basin Washington County Missouri Phase I Inspection Report written by Richard G. Berggreen and published by . This book was released on 1981 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt: The St Louis District (SLD), Corps of Engineers, has classified this dam as having a high hazard potential. The dam is classified intermediate size based on its height of about 45 to 50 feet. The downstream face is steep, on the order of 33 to 35 degrees, is constructed of cohesionless sand gravel, and could be severely eroded if overtopped. Scattered large trees up to 12 in. diameter are growing on the downstream face of the dam. The reservoir storage volume is completely filled with fine tailings and storage of water is limited to two small ponds at the upstream end of the impoundment, and shallow, intermittent ponds on the surface of the tailings. Hydraulic/hydrologic analyses indicate the dam and informal spillway will pass the 1 percent probability-of-occurrence event (100-year flood) without overtopping the embankment. These analyses further indicate the dam will be overtopped by a storm which produces greater than 55 percent of the Probable Maximum Flood (PMF). Based on the inspection of the Dam, it is recommended that further study be conducted without undue delay, under the guidance of an engineer experienced in the design and construction of tailings dams.
