A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The examination of documents and visual inspection of Basic Creek Dam and appurtenant structures did not reveal conditions which constitute a hazard to human life or property. The discharge capacity of the spillway is inadequate for all storms in excess of 52% of the PMF (Probable Maximum Flood). During the 1/2 PMF event the water surface will approximate the top of dam elevation and the outflow will be 6801 cfs. The spillway is, therefore, assessed as 'inadequate'. The following problem areas were observed which require remedial action within 1 year of notification to the owner: Repair the areas of deteriorated concrete which are leaking (approx. 50 gpm) between the 24 inch and 48 inch valves within the intake chamber; Repair the deteriorated concrete and control the seepage within the diversion tunnel; Monitor the seepage within the intake chamber, particularly above the 12 inch valve, and repair as required; Repair the voids in the concrete spillway apron; Monitor the seepage from the horizontal joints of the spillway; Periodically monitor the concrete deterioration of the dam and appurtenances; Periodically remove the debris in the downstream channel; Remove the trees and brush on the slopes, crest and abutments of the embankments.
The examination of documents and visual inspection of Basic Creek Dam and appurtenant structures did not reveal conditions which constitute a hazard to human life or property. The discharge capacity of the spillway is inadequate for all storms in excess of 52% of the PMF (Probable Maximum Flood). During the 1/2 PMF event the water surface will approximate the top of dam elevation and the outflow will be 6801 cfs. The spillway is, therefore, assessed as 'inadequate'. The following problem areas were observed which require remedial action within 1 year of notification to the owner: Repair the areas of deteriorated concrete which are leaking (approx. 50 gpm) between the 24 inch and 48 inch valves within the intake chamber; Repair the deteriorated concrete and control the seepage within the diversion tunnel; Monitor the seepage within the intake chamber, particularly above the 12 inch valve, and repair as required; Repair the voids in the concrete spillway apron; Monitor the seepage from the horizontal joints of the spillway; Periodically monitor the concrete deterioration of the dam and appurtenances; Periodically remove the debris in the downstream channel; Remove the trees and brush on the slopes, crest and abutments of the embankments.
National Dam Safety Program. Basic Creek Dam (Inventory Number NY 84), Lower Hudson River Basin, Albany County, New York. Phase I Inspection Report
G. Koch (author)
1981
140 pages
Report
No indication
English