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 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 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 Government Reports Announcements Index written by and published by . This book was released on 1982 with total page 672 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 1300 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 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 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 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 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 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 Potosi Lake Dam MO 30477 Mississippi Kaskaskia St Louis Basin Washington County Missouri Phase I Inspection Report written by Leonard M. Krazynski and published by . This book was released on 1980 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: Potosi Lake Dam is an earth dam constructed for recreational purposes. The main spillway is a 3-ft dia corrugated metal pipe (CMP), or culvert, which discharges into an unlined earth channel. A 2-ft dia CMP serves as the auxiliary spillway and discharges into the same channel. A siphon (12-in. dia steel pipe) crosses the dam at about the midpoint. It crosses under the road and rests on the downstream slope. It discharges at the dam toe. The inspection and evaluation indicate that the dam is in generally poor condition. Specific deficiencies that were noted are inadequate spillway capacity, the high potential for spillway blockage, the dense growth of large trees and brush on the downstream slope and along the upstream crest, and lack of maintenance and periodic inspections. Hydrologic/Hydraulic studies indicate that the 10 percent probability-of-occurrence event (10-yr flood) will cause overtopping of the dam. These analyses also indicate that the dam will be overtopped for a hydrologic event which produces greater than eight percent of the Probable Maximum Flood.
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 Lake Sherwood Dam MO 11017 Mississippi Kaskaskia St Louis Basin St Louis County Missouri Phase I Inspection Report written by Walter G. Shifrin and published by . This book was released on 1979 with total page 92 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 White Smith Austin Lake Dam MO 30584 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 87 pages. Available in PDF, EPUB and Kindle. Book excerpt: White, Smith, Austin Lake Dam is located in Warren County, Missouri at the headwaters of Schlanker Branch. The purpose of the dam is to impound water for recreational use as a private lake. The lake is utilized by landowners adjacent to the lake. The crest of the embankment has a thick grass cover. Trees and large brush currently densely vegetate the downstream slope of the embankment. One small area on the downstream embankment slope near the center of the dam has recently been cleared of trees and brush. The upstream slope has brush and small trees growing on the right side of the embankment, while the vegetation on the left side has recently been cut.
Download or read book National Dam Safety Program Gudaitis Lake Dam MO 30702 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 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gudaitis Lake Dam is in the small size classification based on its maximum height of 25 ft and on its reservoir storage volume of about 180 ac-ft. The small dam classification includes dams between 25 and 40 ft in height or having storage capacities between 50 and 1000 ac-ft. The inspection and evaluation indicate the dam is in fair condition. This evaluation is primarily based on hydrologic analyses that indicate that a flood greater than 12 percent of the PMF will effectively overtop the dam. The dam will also be effectively overtopped by the one percent probability-of-occurrence (100 year) flood event. A 40 ft wide zone of slow seepage was noted at the toe of the dam, but the seepage water was not transporting any soil particles at the time of our inspection. The downstream face of the dam is heavily vegetated with relatively young trees up to 12 in. in diameter. This vegetation obscured portions of the dam from inspection. The spillway discharge channel is narrow and shallow and is bordered by many large trees. Deep gulley erosion is occurring where this channel traverses steeper slopes. Flood flows in this channel could cause overtopping of the channel and erosion of the channel walls, resulting in possible erosion at the toe of the dam.
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 Pine Lake Dam MO 30447 Mississippi Kaskaskia St Louis Basin Jefferson County Missouri Phase I Inspection Report written by Albert B Becker (Jr) and published by . This book was released on 1978 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt: Certain deficiencies were noticed during the visual inspection and are considered to have an adverse effect on the overall safety and future operation of the dam and spillway. The upstream slope of the dam is irregular (maximum slope ratio is approximately 1v on 1.3h) beginning at a level about 12 feet below the top of the dam. Excessive irregularities of the face of the dam are indications of instability and/or erosion, both of which are considered detrimental to the safety of the dam. A substantial cover of small trees and brush that may conceal animal burrows exists on the upstream and downstream slopes of the dam. The tree roots and animal burrows can provide a pathway for lake seepage that may develop into a piping condition. The upstream slope has a grass cover to protect it from erosion by wave action. Grass cover is not considered adequate to prevent erosion by wave action for a fluctuating lake level. Loss of material can result in instability and settlement of the dam crest. A dense growth of brush and small trees obstructs the spillway crest and outlet channel.
