Download or read book National Program for Inspection of Non Federal Dams Chaffin Pond Dam MA 00621 Merrimack River Basin Holden Massachusetts Phase I Inspection Report written by CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV. and published by . This book was released on 1979 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chaffin Pond Dam is actually a section of roadway embankment approximately 135 ft. long, 11 ft. high and with a minimum width of 100 ft. Three submerged culvert outlets pass through the dam between upstream and downstream headwalls, allowing the water level to be the same on both sides of the dam. The control entrance to the assumed 30-in. diameter outlet on the left side has slots for stoplogs; however, none are in place. The control for a 4-ft. box culvert in the center is an open wood gate. The third outlet culvert is also gated but apparently blocked. Water from Chaffin Pond flows to outlet works at a second pond downstream from the dam where water is drawn for hydraulic research purposes. The dam is in poor condition, based on a visual examination of the structure. The headwalls have experienced major structural failures and the potential for a collapse of the upstream headwall with possible obstruction of flow to the outlet does exist. Hydraulic analyses indicate that the test flood would surcharge the pond by 680 acre-ft. and raise the pond level to about 4.2 ft. below the top of the dam. Therefore, no overtopping would be expected.

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1985 with total page 1224 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book National Program for Inspection of Non Federal Dams Lake Wampanoag Dam MA 00010 Merrimack River Basin Ashburnham Massachusetts Phase I Inspection Report written by CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV. and published by . This book was released on 1980 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lake Wampanoag Dam is approximately 660 feet long including the spillway and has a maximum height of approximately 22 feet. It consists of an earth embankment with riprap at the upstream face and a loamed and seeded crest and downstream face. Based on the size classification (intermediate) and hazard potential classification (high), the spillway test flood is the PMF.

Download or read book National Program for Inspection of Non Federal Dams Crocker Pond Dam MA 00638 Merrimack River Basin Westminster Massachusetts Phase I Inspection Report written by CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV. and published by . This book was released on 1980 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: Crocker Pond Dam is a 520-foot long earthfill dam built in 1933 for storage. The facility has a maximum height of 38.5 feet and includes a spillway, flood gate, gate house and outlet structures. The spillway is a concrete ogee weir, 120-feet long (including the closed flood gate). There are five separate outlets for the dam, and 8-foot wide by 12-foot high flood gate, which when closed is part of the spillway; a 42-inch diameter main low level outlet; a 24-inch diameter auxiliary low level outlet; a 3-foot square drain; and a 3-foot square trash chute. The following deficiencies were observed at the site: spalled, cracked and deteriorated concrete on the east and west approach channel sidewalls, the spillway face, the sidewall between the spillway and the flood gate, the east and west sidewalls of the spillway, and the west face of the gate house; burrow holes and foot paths on the downstream face of the dam; missing stones along the downstream bench of the east section of the dam; logs and debris caught on the spillway weir and trees overhanging the west side of the downstream channel. The test flood would overtop the dam by 2.2 feet with no flashboards in place andf 3.8 feet with flashboards in place. Hydraulic analyses indicate that the spillway without flashboards can discharge 10,500 cfs, or 57 percent of the test flood outflow before the dam is overtopped with flashboards, the spillway can discharge 6,300 cfs or 34 percent of the test flood outflow before the dam is overtopped. This assumes that the flood gate remains closed during the test flood.

Download or read book National Program for Inspection of Non Federal Dams Snows Mill Pond Dam MA 00878 Merrimack River Basin Fitchburg Massachusetts Phase I Inspection Report written by CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV. and published by . This book was released on 1979 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dam consists of an earth dike, about 250 ft. long on the left bank of the river, and a z-shaped stone masonry spillway about 212 ft. long. The dam itself is generally in good condition. There was no evidence of settlement, lateral movement or other signs of structural failure. It is small in size with a high hazard potential.

Download or read book Government Reports Annual Index written by and published by . This book was released on 1985 with total page 1022 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book National Program for Inspection of Non Federal Dams Bailey Pond MA 00180 Merrimack River Basin Amesbury Massachusetts Phase I Inspection Report written by CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV. and published by . This book was released on 1979 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bailey Pond Dam, Amesbury, Mass., is a 180 foot long earth embankment with concrete walls forming a portion of the upstream face of the dam and the approach channel to the spillway. The height of the dam is 15 ft. which is the height of the inlet chamber below the spillway. The dam and spillway are generally in fair condition. A test flood equal to 1/4 the PMF was selected.

Download or read book National Program for Inspection of Non Federal Dams Quinapoxet Reservoir Dam MA 00929 Merrimack River Basin Holden Massachusetts Phase I Inspection Report written by CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV. and published by . This book was released on 1980 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dam is about 1050 ft. long including the spillway and has a maximum height of about 45 ft. The facility is considered to be in good condition. Evidence of minor seepage was observed on the downstream slope of the dam adjacent to the left wall of the spillway discharge channel. The size is intermediate, and the hazard potential classification is high. (Author).

Download or read book National Program for Inspection of Non Federal Dams Simonds Pond Dam MA 00874 Merrimack River Basin Leominster Massachusetts Phase I Inspection Report written by CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV. and published by . This book was released on 1981 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt: Simonds Pond is approximately 365 feet long and has a hydraulic height of 26 feet. The storage capacity is 86.5 acre-feet. The dam has a concrete cap and stone abutments. The emergency spillway is 48 feet long and occupies the center portion of the dam. As a result of the visual inspection and a review of available data, Simonds Pond Dam is considered to be in poor condition. Major concerns are: significant seepage at the toe of the dam; missing mortar and poor condition of the joints of the spillway; extensive spalling and cracking of the concrete cap on the top of the dam and spillway; deterioration of the spillway apron; extensive spalling of the concrete gatehouse foundation; and inadequate spillway capacity. The test flood inflow was estimated to be 2,500 cfs and resulted in an outflow discharge estimated to be 2,460 cfs, which would overtop the dam by approximately 1.3 feet. The maximum spillway capacity with the water level at the dam crest was estimated to be 700 cfs, which is approximately 28 percent of the test flood discharge.

Download or read book National Program for Inspection of Non Federal Dams Eagle Lake Dam MA 00979 Merrimack River Basin Holden Massachusetts Phase I Inspection Report written by CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV. and published by . This book was released on 1978 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dam comprises a concrete ogee spillway section with earthfill abutments behind concrete wing walls. The total height of the dam is about 20 ft. It is small in size with a high hazard classification. The potential hazard to property, and possible human life, is the proximity of the industrial complex to the reservoir and the inadequacy of the channel through the complex to convey high flows, be they the result of high and continued precipitation or a failure of the dam.

Download or read book National Program for Inspection of Non Federal Dams Reservoir Number One MA 00337 Merrimack River Basin Framingham Massachusetts Phase I Inspection Report written by CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV. and published by . This book was released on 1979 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt: Total length of the dam is about 800 ft. with a height of about 22 ft. Although there were some minor deficiencies noted the dam is considered to be in good condition. It is intermediate in size with a hazard potential of high.

Download or read book National Program for Inspection of Non Federal Dams Lake Gardner Dam MA 00152 Merrimack River Basin Amesbury Massachusetts Phase I Inspection Report written by CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV. and published by . This book was released on 1978 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book National Program for Inspection of Non Federal Dams Mill Pond Reservoir Main Dam MA 01121 Merrimack River Basin Burlington Massachusetts Phase I Inspection Report written by CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV. and published by . This book was released on 1980 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dam is comprised of a 1,300 foot long, 49.5 foot high earth fill embankment having a concrete core wall. The reservoir is a pump storage facility, having no inlet stream or spillway. Between the design high water level, elevation 144, and the top of dam, elevation 147.5, there is 221 acre-feet of available storage. This capacity is sufficient to store all the runoff, 203 acre-feet, from the drainage area. There will be no test flood outflow. The dam will not be overtopped. The following remedial measures should be instituted by the Owner: grass and brush on the dam should be cut and maintained; animal burrows should be filled-in and prevented from reoccuring; trespassing on the dam should be prevented; a formal warning system for the downstream impact area should be developed and the dam should be inspected once every year by a qualified registered professional engineer.

Download or read book National Program for Inspection of Non Federal Dams Pierce Pond Dam MA 00883 Merrimack River Basin Leominster Massachusetts Phase I Inspection Report written by CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV. and published by . This book was released on 1980 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dam is a 470 ft. long earthfill dam with a maximum height of 14 ft. There are deficiencies which must be corrected to assure the continued performance of the dam. Generally the dam is in poor condition. It is small in size with a hazard potential of high. (Author).

Download or read book National Program for Inspection of Non Federal Dams Nagog Pond Dam MA 00129 Merrimack River Basin Acton Massachusetts Phase I Inspection Report written by CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV. and published by . This book was released on 1978 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dam is a concrete gravity section keyed into bed-rock. The top of the dam is approximately 168 ft. long and 15 ft. high. The dam is in good condition, based on a visual examination of the structure. Although some deficiencies were noted, there was no evidence of settlement, lateral movement or other signs of structural failure or other conditions which would warrant urgent remedial treatment. Based on size and hazard classification in accordance with Corps of Engineers guidelines, the test flood for this dam is the 100-year flood. With the water level at top of dam, the spillway has a capacity of 60 cfs. Hydraulic analyses indicate the test flood outflow of 22 cfs (17.7 csm) can be passed with a freeboard of 0.76 ft. remaining.

Download or read book National Program for Inspection of Non Federal Dams Meetinghouse Pond Dam MA 01018 Merrimack River Basin Westminster Massachusetts Phase I Inspection Report written by CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV. and published by . This book was released on 1978 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: Meetinghouse Pond Dam comprises two earthen embankments with an included spillway. The major embankment, the dam, is approximately 230 feet long and 15 feet high. The other embankment, the dike, is approximately 170 feet long and approximately 6 feet high. It is located to the north of the dam and includes a masonry spillway with wooden flashboards. The dam is in good to fair condition. Hydraulic analyses indicate that the spillway can safely pass the test flood provided the flashboards are not in place; otherwise the spillway dike will be overtopped. Recommendations for remedial work include the clearing of brush and trees from the dike, dam, spillway and discharge channel; the filling of animal burrows; the providing of additional riprap protection; the re-shaping of the dam crest to limit vehicle traffic; and performing maintenance work on the spillway and gate house. Additional investigations of the spillway dike are recommended to determine if seepage is present at high water levels and to determine and modify as necessary the freeboard.

Download or read book National Program for Inspection of Non Federal Dams Stevens Pond Outlet Dam MA 00232 Merrimack River Basin Lawrence Massachusetts Phase I Inspection Report written by CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV. and published by . This book was released on 1978 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dam appears to be in good condition, The 'V' spillway is 90 ft. long with effective abutments of about 10 ft. on either end. The dam is about 15 ft. high at the abutments. Although the dam is in the small size category the hazard potential is extremely high and thus the situation was analyzed using the full probable maximum flood. A failure of the dam would overflow the left bank immediately below the dam, flood nearby buildings and streets.