Mansfield Hollow Lake | |
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Lake Naubesatuck, Mansfield Lake [1] | |
Location | Mansfield & Windham, Connecticut |
Coordinates | 41°46′32″N72°11′00″W / 41.77556°N 72.18333°W [1] |
Type | Reservoir |
Primary inflows | Natchaug River, Fenton River, Mount Hope River |
Primary outflows | Natchaug River |
Catchment area | 163 sq mi (420 km2) [2] |
Basin countries | United States |
Max. length | 2.2 miles (3.5 km) |
Max. width | 2,400 feet (730 m) |
Surface area | 440 acres (180 ha): Normal pool [2] |
Max. depth | 23 ft (7.0 m) [2] |
Water volume | 90,000,000 cubic feet (2,500,000 m3): Normal pool [3] |
Surface elevation | 210 feet (64 m) [1] |
Settlements | Mansfield Center |
Mansfield Hollow Dam | |
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Official name | Mansfield Hollow Dam |
Location | Mansfield & Windham |
Construction began | 1949 |
Opening date | 1952 |
Mansfield Hollow Dam | |
NRHP reference No. | 03000194 |
Added to NRHP | April 12, 2003 |
Operator(s) | Army Corps of Engineers |
Dam and spillways | |
Impounds | Natchaug River |
Height | 68 ft (21 m) |
Length | 12,420 ft (3,790 m) |
Width (crest) | 15 ft (4.6 m) |
Width (base) | 265 ft (81 m) |
Reservoir | |
Creates | Mansfield Hollow Lake (Lake Naubesatuck) [4] |
Mansfield Hollow Lake is a reservoir resting on the border of Windham County and Tolland County, Connecticut. The reservoir provides drinking water for Willimantic and helps control flooding in the 159-square-mile Thames River watershed. [4] It was created by the Mansfield Hollow Dam and is entirely contained within Mansfield Hollow State Park and the Mansfield Hollow Wildlife Area. [5] Designed and constructed by the United States Army Corps of Engineers, the dam substantially reduces flooding along the Quinebaug, Shetucket, and Thames rivers. Construction of the project began in 1949 with completion in 1952 at a cost of US$6.5 million. [6] The Mansfield Hollow reservoir is located within the Shetucket River Watershed and is part of the Thames River Basin. Access to the site is available from US Route 6 and State Route 195. The damsite, covering an area of 25 acres (10 ha), was listed on the National Register of Historic Places in 2003. [7]
The project consists of a rolled earth fill dam with stone slope protection 12,420 feet (3,790 m) long and 68 feet (21 m) high. The spillway comprises a concrete weir 690 ft (210 m) in length. The weir's crest elevation is 16 feet (4.9 m) lower than the top of the dam. The permanent lake at Mansfield Hollow Dam, Naubesatuck Lake is 450 acres (1.8 km2) in size. The flood storage area for the entire project covers about 1,880 acres (7.6 km2) in the towns of Mansfield, Windham, and Chaplin, Connecticut. The entire project, including all associated lands, covers 2,472 acres (10.00 km2). The Mansfield Hollow Dam can store up to 8.3 billion US gallons (31,000,000 m3) of water for flood control purposes. This is equivalent to 6.1 inches (150 mm) of water runoff from its drainage area of 159 square miles (410 km2). [6]
Mansfield Hollow State Park is located on Bassetts Bridge Road in the town of Mansfield. The park offers boating (8 mph limit), fishing, a shaded picnic area and many miles of hiking, mountain biking and cross-country ski trails. A boat launch is located on Bassetts Bridge Road in the town of Mansfield, 1/2 mile east of the state park entrance. It is open daily from 8 a.m. to sunset. There is no entrance fee. This area is managed by the Connecticut Department of Energy and Environmental Protection. [8]
Mansfield Hollow Dam is located on Mansfield Hollow Road in the town of Mansfield. Visitors can picnic on the lawn both downstream of the dam and on the lake side of the dam. The top of the dam is popular for walking, jogging, and biking. The west half of the dam is approx. 1-mile (1.6 km) long, the east half is almost 2 miles (3.2 km) long. Parking is available at the State Park, Damsite, Commuter Parking Lot on US Route 6, and athletic field parking lot on State Route 89. The dam runs alongside Windham Airport.
Windham County is one of the eight historical counties in the U.S. state of Connecticut, located in its northeastern corner. As of the 2020 census, the population was 116,418, making it the least populous county in Connecticut. It forms the core of the region known as the Quiet Corner. Windham County is included in the Worcester, MA-CT Metropolitan Statistical Area, which is also included in the Boston-Worcester-Providence, MA-RI-NH-CT Combined Statistical Area. The entire county is within the Quinebaug and Shetucket Rivers Valley National Heritage Corridor, as designated by the National Park Service.
Mansfield is a town in Tolland County, Connecticut, United States. The town is part of the Capitol Planning Region. The population was 25,892 at the 2020 census.
The Shetucket River is a tributary of the Thames River, 20.4 miles (32.8 km) long, in eastern Connecticut in the United States.
The Department of Conservation and Recreation (DCR) is a state agency of the Commonwealth of Massachusetts, United States, situated in the Executive Office of Energy and Environmental Affairs. It is best known for its parks and parkways. The DCR's mission is "To protect, promote and enhance our common wealth of natural, cultural and recreational resources for the well-being of all." The agency is the largest landowner in Massachusetts.
The Quinebaug River is a river in south-central Massachusetts and eastern Connecticut, with watershed extending into western Rhode Island. The name "Quinebaug" comes from the southern New England Native American term, spelled variously Qunnubbâgge, Quinibauge, etc., meaning "long pond", from qunni-, "long", and -paug, "pond". The river is one of the namesake rivers in the Quinebaug and Shetucket Rivers Valley National Heritage Corridor.
Folsom Dam is a concrete gravity dam on the American River of Northern California in the United States, about 25 mi (40 km) northeast of Sacramento. The dam is 340 ft (100 m) high and 1,400 ft (430 m) long, flanked by earthen wing dams. It was completed in 1955, and officially opened the following year.
Hop Brook Lake is spread over three communities in New Haven County, Connecticut, United States. These communities are Naugatuck, Middlebury, and Waterbury. A dam was created across Hop Brook in Naugatuck and the lake that was created is known as Hop Brook Lake.
Lake Waramaug is a 656-acre (265 ha) lake occupying parts of the towns of Kent, Warren and Washington in Litchfield County, Connecticut, United States, approximately 24 miles (39 km) north of Danbury. The lake is named after Chief Waramaug, who wintered in the area surrounding Lake Waramaug.
The Conant Brook Dam is located on Conant Brook in Monson, Massachusetts, about 7.4 miles (11.9 km) upstream from the confluence of Conant Brook and the Quaboag River. It is approximately 15 miles (24 km) east of Springfield, Massachusetts.
The East Brimfield Dam is located on the Quinebaug River in Sturbridge, Massachusetts, approximately 20 miles (32 km) southwest of Worcester, Massachusetts.
The Westville Dam is located on the Quinebaug River between Southbridge and Sturbridge, about 1.3 miles (2.1 km) west of the Southbridge town center and 18 miles (29 km) southwest of Worcester, Massachusetts.
The Last Green Valley National Heritage Corridor is a federally designated National Heritage Corridor in northeastern Connecticut and portions of Massachusetts. It has a rural character with rolling hills, farmland and classic New England scenery. This area was designated because it is one of the last remaining stretches of green in the Boston to Washington, D.C. heavily urbanized corridor. The valley also has the largest stretch of dark night sky in the Northeast megalopolis corridor. It contains some of the largest unbroken forests in Southern New England, in a region of Connecticut known as the Quiet Corner.
Mansfield Hollow State Park is a public recreation area occupying 251 acres (102 ha) of leased lands on the western shore of 500-acre (200 ha) Mansfield Hollow Lake in the town of Mansfield, Connecticut. The state park is one portion of the 2,300 acres (930 ha) leased by the Connecticut Department of Energy and Environmental Protection from the U.S. Army Corps of Engineers for recreational and wildlife management purposes. Geologic features of the park include remnants of the last glacial period, where retreating glaciers left kames, eskers, and kettles. Recreational opportunities include facilities for boating, fishing, picnicking, hiking, mountain biking, and cross-country skiing. The park is traversed by the southeastern leg of the Nipmuck Trail.
Joshua's Tract Conservation and Historic Trust, or Joshua's Trust, is a non-profit 501(c)(3) land trust operating in northeast Connecticut. Joshua's Trust was incorporated in 1966 to help conserve property of significant natural or historic interest. As of 2011, the Trust protects more than 5,000 acres, maintains 42 miles (68 km) of trails that are open to the public, holds educational outreach programs, and publishes the Joshua's Tract Walkbook.
The Natchaug River is a 17.9-mile-long (28.8 km) river in Windham and Tolland Counties in northeastern Connecticut. The name Natchaug comes from the Nipmuc language and is believed to mean land between rivers.
Quinebaug Lake State Park is a public recreation area covering 181 acres (73 ha) in the town of Killingly, Connecticut. The state park offers opportunities for fishing and non-motorized boating on Wauregan Reservoir. The park is managed by the Connecticut Department of Energy and Environmental Protection.
Farm River State Park is a privately operated, publicly owned recreation area on the western shore of the Farm River estuary in the town of East Haven, Connecticut. Public access to the 62-acre state park is limited and boating is restricted to those with passes obtained from Quinnipiac University, which manages the park for the Connecticut Department of Energy and Environmental Protection. Park activities include nature trail hiking, bird watching, and fishing.
West Thompson Lake is a 200-acre lake in Thompson, Windham County, Connecticut.
Quaddick Reservoir is a man-made body of water in the town of Thompson, Connecticut. The reservoir has three sections: Lower, Middle, and Upper. It originated with the completion of a dam on the Five Mile River in 1865. Quaddick State Park sits on the eastern shore of the Middle Reservoir.
Batavia Kill is a 21-mile-long (34 km) tributary of Schoharie Creek, that flows across the towns of Windham, Ashland and Prattsville in the U.S. state of New York. Its waters reach the Hudson River via Schoharie Creek and the Mohawk River. Since it drains into the Schoharie upstream of Schoharie Reservoir, it is part of the New York City water supply system. From the source to Maplecrest, Batavia Kill drains the northern slopes of the Blackhead Mountains, which include Thomas Cole Mountain, Black Dome, and Blackhead Mountain, the fourth-, third-, and fifth-highest peaks in the Catskills, respectively.