A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
National Dam Inspection Program. Lake Antietam Dam, (ID Number PA. 00716) Schuylkill River Basin, Antietam Creek, Berks County, Pennsylvania. Phase I Inspection Report
Lake Antietam Dam is a 60-foot high masonry structure with an upstream compacted fill embankment with an impervious core approximately 8 feet wide. The dam is approximately 230 feet long with a crest width of 17 feet. The embankment impounds a 16-acre reservoir within a 5.5 square mile drainage basin. The upstream slope is 2.25H:IV, and is riprapped from the crest to elevation 498 with hand-placed stone. The downstream slope is composed of stacked masonry block and has a curved surface, as shown on Plate 5, Appendix E. The dam was founded on trap rock, and does not have a cutoff trench or a grout curtain. There is a 4-foot high parapet wall along the downstream side of the crest. The spillway is excavated into solid rock on the left abutment, and has a skewed spillway with a crest width of 66 feet discharging into a channel which narrows to 30 feet at the end. Thereafter, water discharges into the natural streambed below the dam. The intake tower is located 125 feet upstream from the crest, and contains one discharge pipe, as shown on Plate 5. It is noted that this discharge pipe is no longer operational, and that the reservoir no longer serves as a water supply source. The dam contains a pond drain with a control valve at a valve house located at the downstream toe of the dam.
National Dam Inspection Program. Lake Antietam Dam, (ID Number PA. 00716) Schuylkill River Basin, Antietam Creek, Berks County, Pennsylvania. Phase I Inspection Report
Lake Antietam Dam is a 60-foot high masonry structure with an upstream compacted fill embankment with an impervious core approximately 8 feet wide. The dam is approximately 230 feet long with a crest width of 17 feet. The embankment impounds a 16-acre reservoir within a 5.5 square mile drainage basin. The upstream slope is 2.25H:IV, and is riprapped from the crest to elevation 498 with hand-placed stone. The downstream slope is composed of stacked masonry block and has a curved surface, as shown on Plate 5, Appendix E. The dam was founded on trap rock, and does not have a cutoff trench or a grout curtain. There is a 4-foot high parapet wall along the downstream side of the crest. The spillway is excavated into solid rock on the left abutment, and has a skewed spillway with a crest width of 66 feet discharging into a channel which narrows to 30 feet at the end. Thereafter, water discharges into the natural streambed below the dam. The intake tower is located 125 feet upstream from the crest, and contains one discharge pipe, as shown on Plate 5. It is noted that this discharge pipe is no longer operational, and that the reservoir no longer serves as a water supply source. The dam contains a pond drain with a control valve at a valve house located at the downstream toe of the dam.
National Dam Inspection Program. Lake Antietam Dam, (ID Number PA. 00716) Schuylkill River Basin, Antietam Creek, Berks County, Pennsylvania. Phase I Inspection Report
1978
93 pages
Report
No indication
English