A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The Fresh Air Fund Dam consists of a 880 feet long homogeneous earth embankment with rip rap protection on the upstream slope. It is about 44 feet in height at its maximum, with a crest width of 20 feet. The structure has an upstream slope of 3 to 1 and a downstream slope of 2 1/2 to 1. A 4' x 4' concrete drop inlet spillway is located on the left end of the embankment. It empties into a 36 in. diameter corrugated metal pipe running through the embankment and into the original stream channel. A 12 in. steel reservoir drain pipe is located through the embankment at elevation 698. The right end of the embankment is adjacent to the grass lined emergency spillway which is 80 feet wide. The examination of documents and visual inspection of the Fresh Air Fund Dam No. 1 and appurtenant structures did not reveal conditions which constitute a hazard to human life or property. The dam, however, has a number of problem areas which require remedial action. The discharge capacity of the spillway is inadequate for all flows in excess of 85% of the PMF (Probable Maximum Flood). The spillway is therefore, assessed as inadequate.
The Fresh Air Fund Dam consists of a 880 feet long homogeneous earth embankment with rip rap protection on the upstream slope. It is about 44 feet in height at its maximum, with a crest width of 20 feet. The structure has an upstream slope of 3 to 1 and a downstream slope of 2 1/2 to 1. A 4' x 4' concrete drop inlet spillway is located on the left end of the embankment. It empties into a 36 in. diameter corrugated metal pipe running through the embankment and into the original stream channel. A 12 in. steel reservoir drain pipe is located through the embankment at elevation 698. The right end of the embankment is adjacent to the grass lined emergency spillway which is 80 feet wide. The examination of documents and visual inspection of the Fresh Air Fund Dam No. 1 and appurtenant structures did not reveal conditions which constitute a hazard to human life or property. The dam, however, has a number of problem areas which require remedial action. The discharge capacity of the spillway is inadequate for all flows in excess of 85% of the PMF (Probable Maximum Flood). The spillway is therefore, assessed as inadequate.
National Dam Safety Program. Fresh Air Fund Dam, Site 1 (Deer Lake) (Inventory Number NY288), Lower Hudson River Basin, Dutchess County, New York. Phase I Inspection Report
G. Koch (author)
1980
178 pages
Report
No indication
English