Missouri-Kansas City Basin, Fayette New City Lake Dam, Howard County, Missouri, Phase 1 Inspection Report, National Dam Safety Program PDF Download

Author: United States. Army. Corps of Engineers. St. Louis District
Publisher:
ISBN:
Category : Dams
Languages : en
Pages : 106

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Author: Harold P. Hoskins
Publisher:
ISBN:
Category :
Languages : en
Pages : 34

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Book Description
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 in consideration of the small volume of water impounded, the large floodplain downstream and the two houses downstream, 50% of the Probable Maximum Flood is the appropriate design flood. The spillway of this dam meets this criteria. The spillway will pass the 100-year event as well as 75% of the Probable Maximum Flood (PMF) 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. Seepage and stability analyses comparable to the requirements of the 'Recommended Guidelines for Safety Inspection of Dams' were not available, which is considered a deficiency. These analyses should be obtained in the future.

Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 206

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Book Description

Author: Rey S. Decker
Publisher:
ISBN:
Category :
Languages : en
Pages : 64

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Book Description
The purpose of the inspection was to make an assessment of the general conditions 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 spillway does not meet the criteria set forth in the recommended guidelines for a small dam having a high hazard potential. Considering the number of residences in the downstream floodplain, the Probable Maximum Flood is the appropriate spillway design flood. The spillway will pass the 100-year flood (flood having a one percent chance of being exceeded in any year) without overtopping the dam. The spillway will pass 30% 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.

Author: United States. Army. Corps of Engineers. St. Louis District
Publisher:
ISBN:
Category : Dams
Languages : en
Pages : 102

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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 155

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This dam appears to be in satisfactory condition. However, the dam does not have adequate spillway capacity. Considering the number of inhabited dwellings, a state highway and an oil depot being located downstream of the dam, the PMF is considered the appropriate spillway design flow for A.C. Schneider Lake Dam. The inspection and evaluation indicates that the reservoir/spillway system can accommodate approximately 5 percent of the Probable Maximum Flood without overtopping the dam. It also indicates that the reservoir/spillway system can not accommodate the one-percent chance flood without overtopping, however, the reservoir/spillway system of A.C. Schneider Lake Dam can accommodate the ten-percent chance flood without overtopping. Other deficiencies noted by the inspection team were: the erosion gully along the downstream left abutment/embankment contact, the trees on the downstream and upstream slope of the dam, wave erosion on the upstream slope, the unsupported length of the principal spillway pipe at the outlet, the eroded gulley in the emergency spillway channel, some vegetative growth around the principal spillway inlet, a need for periodic inspection by a qualified engineer and a lack of maintenance schedule. The lack of seepage and stability analyses on record is also a deficiency that should be corrected.

Author: United States. Army. Corps of Engineers. St. Louis District
Publisher:
ISBN:
Category : Dams
Languages : en
Pages : 174

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Author: Paul R. Zaman
Publisher:
ISBN:
Category :
Languages : en
Pages : 51

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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 on visual inspection, in order to determine if the dam poses hazards to human life or property. Based on these guidelines, this dam is classified as a small size dam with a high downstream hazard potential. The inspection and evaluation indicates the spillway does not meet the criteria set forth in the guidelines for a dam having the above size and hazard potential. The spillway will not pass the probable maximum flood or 50 percent of the probable maximum flood without overtopping but will pass 40 percent of the probable maximum flood, which is greater than the 100-year flood. Deficiencies visually observed by the inspection team were erosion, absence of the riprap, protection on the upstream slope, sloughing of the upstream embankment, and erosion of the downstream embankment slope. Seepage and stability analyses required by the guidelines were not available. There were no observed deficiencies or conditions existing at the time of the inspection which indicated an immediate safety hazard.

Author: C. L. Metzler
Publisher:
ISBN:
Category :
Languages : en
Pages : 55

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Book Description
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 the spillways do not meet the criteria set forth in the guidelines for a dam having the above size and hazard potential. The spillways will pass 55 percent of the probable maximum flood, which is greater than the 100-year flood, without over topping the dam. The spillway design flood recommended by the guidelines is the probable maximum flood. 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. Deficiencies visually observed by the inspection team were minor seepage through the spillway weir wall, erosion on the upstream embankment, minor deterioration of the concrete weir, separation of riprap, brush growth on both faces of the structure, and a slide area on the downstream face. There were no observed deficiencies or conditions existing at the time of the inspection which indicated an immediate safety hazard. Future corrective action and regular maintenance will be required to correct or control the described deficiencies.

Author: Rey S. Decker
Publisher:
ISBN:
Category :
Languages : en
Pages : 74

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Book Description
The purpose of the inspection was to make an assessment of the general conditions of the dam with respect to safety, based upon available data visual inspection, in order to determine if the dam poses hazards to human life or property. The inspection and evaluation indicate that the spillways do not meet the minimum criteria set forth in the recommended guidelines for an intermediate dam having a high hazard potential. The Probable Maximum Flood is the appropriate spillway design flood. The spillway will pass the 100-year flood (a flood having a 1 percent probability of being exceeded in any year) without overtopping the dam. The spillways will pass 22 percent 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.