National Program for Inspection of Non-Federal Dams. Paper Goods Pond Dam (CT 00253), Connecticut River Basin, Berlin, Connecticut. Phase I Inspection Report PDF Download
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Author: CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV.
Publisher:
ISBN:
Category :
Languages : en
Pages : 98
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Book Description
The Paper Goods Pond Dam is a concrete and masonry structure. It is approximately 70 feet long, 30 feet high and has an average top width of 4 feet. The Paper Goods Pond Dam was probably constructed in 1920 with subsequent improvements in 1939. The present owner and operator of the dam is Sherwood Industries, Inc., which uses the pond for industrial water supply. Based on visual inspection and past operational performance, the dam is judged to be in FAIR condition. Seepage was noted through the southwest abutment and along the southern downstream channel wall. The 10 inch supply main presently has no control at the dam. The test flood for this dam is 1/2 the Probable Maximum Flood (PMF). The test flood has an inflow equal to 6415 cfs and an outflow discharge equal to 6400 cfs with a stillwater elevation of 125.0 which will overtop the dam by 5.5 feet. The maximum outflow capacity of the spillway with the water surface at the top of the dam is 1190 cfs, which is 19 percent of the test flood outflow.
Author: CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV.
Publisher:
ISBN:
Category :
Languages : en
Pages : 98
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Book Description
The Paper Goods Pond Dam is a concrete and masonry structure. It is approximately 70 feet long, 30 feet high and has an average top width of 4 feet. The Paper Goods Pond Dam was probably constructed in 1920 with subsequent improvements in 1939. The present owner and operator of the dam is Sherwood Industries, Inc., which uses the pond for industrial water supply. Based on visual inspection and past operational performance, the dam is judged to be in FAIR condition. Seepage was noted through the southwest abutment and along the southern downstream channel wall. The 10 inch supply main presently has no control at the dam. The test flood for this dam is 1/2 the Probable Maximum Flood (PMF). The test flood has an inflow equal to 6415 cfs and an outflow discharge equal to 6400 cfs with a stillwater elevation of 125.0 which will overtop the dam by 5.5 feet. The maximum outflow capacity of the spillway with the water surface at the top of the dam is 1190 cfs, which is 19 percent of the test flood outflow.
Author: CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV.
Publisher:
ISBN:
Category :
Languages : en
Pages : 79
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Book Description
Paper Mill Pond consists of a 17 foot long concrete spillway and a 15 foot long concrete dam, all completely surrounded by buildings of Amerbelle Corporation. At top of a dam elevation, the dam impounds 90 acre-feet. Outlet works consist of a drawdown conduit of unknown size and twin 8-inch line for process water. Under normal conditions, the entire flow of the Hockanum River discharges over the spillway. This dam has a maximum height of 16.7 feet with the top of dam 5.5 feet above the spillway crest. The dam is in fair condition with some seepage from the face of dam and some deteriorated concrete. In addition to the operable outlet works, there is the 48-inch metal penstock that was originally used to supply water to the generator turbine. This outlet is plugged and the pipe partially filled and collapsed.
Author: CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV.
Publisher:
ISBN:
Category :
Languages : en
Pages : 67
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The drainage area is 2.0 square miles and the reservoir has 825 acre-feet of storage capacity. The assessment of the dam is based on a visual inspection, past operational performance and hydraulic/hydrologic computations. The dam is judged to be in FAIR condition with several areas that require attention. These areas include seepage through the dam in the vicinity of the low-level discharge pipes and wet spots along the toe of the dam, vegetation on the embankments as well as along the toe of the dam and the inoperable status of the low-level discharge pipe. The test flood outflow will not overtop the dam and will leave 0.4 feet of freeboard.
Author: CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV.
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ISBN:
Category :
Languages : en
Pages : 71
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Papermill Pond Dam is a 573 ft. long composite rubble masonry, concrete, and earth embankment dam consisting of a 124.5 ft. long gravity masonry overflow section, and 84 ft. long earth embankment to the right of the overflow section and a 365 ft. long earth embankment to the left of the overflow section. About 160 ft. of the upstream face of the left embankment is paved with concrete. It is a run-of-the-river dam which is used for storing process water for a paper mill located upstream on the left bank of the river. In the left embankment there is an intake which controlled flows through a conduit to a turbine facility in a mill building located immediately downstream of the dam. The turbine has been abandoned and the mill building is in the process of being razed. The spillway for the dam is equipped with 2.3 ft. high permanent wooden flashboards. The dam is judged to be in generally good condition, but is rated as in fair condition owing to the absence of a dewatering facility. There is brush growth on both embankments. Mortar is missing from the joints of the rubble masonry section of the spillway. There is a crack in the concrete apron on the left embankment and the construction joints of the apron have opened up. Minor erosion has taken place on the downstream slope of the left embankment. The spillway can pass 7,750 cfs or about 72 percent of the routed test flood outflow without overtopping the right embankment.
Author: CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV.
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Category :
Languages : en
Pages : 56
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Mill Pond Dam is an earth-covered, irregular natural rock formation 600 ft. long, with a top width varying from 10 to 20 ft. and a maximum height of 19 ft. The outlet for the dam is a natural rock weir spillway approximately 35 ft. wide, which is overpassed by a footbridge. The crest of the spillway is about 3 ft. below the lowest point on the dam crest. Based on visual inspection, the Mill Pond Dam is judged to be in good condition; however, during the inspection, there was a light snow cover of approximately 2 inches which may have obscured problems, such as erosion or seepage. A test flood of a 100 year frequency was selected in accordance with the Corps of Engineers' Guidelines. The calculated test flood inflow of 1,000 cfs results in a routed outflow of 990 cfs. With the water level at the top of the dam the spillway capacity is 575 cfs which is 58% of the outflow flood. The storage capacity of the Mill Pond is 52 ac.-ft. at the top of the dam.
Author: CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV.
Publisher:
ISBN:
Category :
Languages : en
Pages : 78
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Upper Pond Dam is an earth embankment dam with a maximum height of 17 feet and a length of 390 feet. The dam embankment left of the spillway is approximately 10 feet in width, with 2 horizontal to 1 vertical upstream and downstream embankment slopes. The centrally located spillway is 72 feet in length and is a stone masonry structure. Stone masonry training walls approximately 5 feet in height are located at each side of the spillway. The outlet works consist of a concrete gate structure and an outlet channel. Based on the visual inspection, the Upper Pond Dam appears to be in poor condition. There was no movement or settlement of the crest observed. The horizontal alignment is good. The top of the outlet gate structure, however, is lower than the embankment crest. Some erosion was noted at the abutments, adjacent to the spillway section and adjacent to the outlet works. Trespassing on the slopes was not significant. Erosion scarps on the upstream slope extending 1-2 feet above waterline were noted. Several areas of broad shallow erosion on the upstream slope and upstream side of abutments were observed. Brush and many large trees (up to 2.5-ft.-dia.) with extensive root systems were noted on the slopes and crest of the dam. Standing water was observed in an area 35 feet downstream of the toe on the right side of the dam. The capacity of the spillway is inadequate to pass the 1/2 PMF test flood outflow of 5,195 CFS and would overtop the dam by about 0.9 feet. The spillway can pass about 33 percent of the test flood.
Author: CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV.
Publisher:
ISBN:
Category :
Languages : en
Pages : 34
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Book Description
Moulsons Pond Dam is a stone masonry dam approximately 80 feet long and 23 feet high. The spillway is L shaped with a concrete cap that extends almost the total length of the dam. A bridge spans over the river immediately downstream of the spillway. The top of road is the dam crest and the west bridge abutment is the west spillway abutment. There is a 2-foot high concrete abutment at the east end that is 8 feet below the top of the dam. At the west end of the dam there is a 6-foot diameter pipe that passes beneath the roadway into a sluiceway that goes to an old mill. There is no control for this sluiceway which is always open and the water discharges into the downstream channel. There is no low-level discharge pipe.
Author: CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV.
Publisher:
ISBN:
Category :
Languages : en
Pages : 87
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Book Description
The Pin Shop Pond Dam consists of an earth embankment with a 100 fokot long stone masonry overflow spillway located at the left end of the dam. Teh dam has a total length of 400 feet and a miximum height of 23 feet. The outlet works located to the left of the spillway consistk of an intake sluice gate which discharges into a stone masonry and concrete structure. A 16-inch gate valve drains the structure and discharges downstream of the spillway, A conduit to a downstream industrial complex is plugged with concrete. Based on the visual inspection, the dam is judged to be in poor condition. The future integrity of the dam can be affected by the lack of slope protection on the upstream slope, and continued erosion of the upstream and downstream slopes; trees on the embankment; continued undermining of the spillway apron; vegetation growing in open joints of the stone masonry training walls; the poor condition of the outlet works; and indagequate spillway capacity. The spillway has a capacity of 3,200 cfs and is capable of discharging 34 percent of the Test Flood outflow.
Author: CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV.
Publisher:
ISBN:
Category :
Languages : en
Pages : 32
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Book Description
The Nystrom Pond Dam consists of a concrete, stone masonry and earth structure with a total length of 104 feet and a maximum height of 15 feet. The dam was originally constructed as a stone masonry wall with an upstream earth embankment. The concrete portion of the dam was constructed on and against the downstream face of the stone masonry wall in 1963. In 1969, the dam was raised approximately 2 feet and timber flashboards were replaced by a concrete wier. A downstream earth embankment is present against the left end of the dam. The outlet works located at the left end of the spillway consist of a 12-inch cast iron pipe through the dam controlled by an upstream gate. A 3 foot high earth and stone masonry dike is located approximately 500 feet south of the main dam on the west side of the pond. The main dam appears to be in fair condition and requires some work. The dike is in poor condition with very little freeboard or top width in some areas. The top of the dike is 2.5 feet lower than the crest of the dam. The spillway has a capacity of 60 cfs before overtopping the dike and 390 cfs at the crest of the dam.
Author: CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV.
Publisher:
ISBN:
Category :
Languages : en
Pages : 111
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Book Description
The Merriman Pond Dam consists of an earth embankment with a maximum height of 16 feet, a top width that varies from 30 to 80 feet, and an overall length of 500 feet, including a 12.5 foot long overflow spillway located approximately 150 feet from the right end of the dam. A paved road extends the entire length of the dam with a steel beam and concrete bridge crossing the spillway discharge channel. The outlet works consist of an 8-inch low level outlet or blowoff located to the left of the spillway and controlled by a downstream valve. The dam impounds Merriman Pond which is used as the water supply for turf irrigation of an adjacent golf course. Based on the visual inspection, the dam is judged to be in poor condition. Features that could affect the future integrity of the dam are continued erosion of the upstream and downstream slopes, seepage through the embankment, the presence of trees, stumps and brush on the downstream slope and deterioration of the spillway wing walls. The Test Flood inflow of 680 cfs results in a routed outflow of 345 cfs that overtops the dam by 0.1 feet. The spillway capacity with the water level at the top of the dam is 330 cfs and is equal to 96 percent of the Test Flood routed outflow.
