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Wachusett Reservoir

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Type
  
Reservoir

Basin countries
  
Surface elevation
  
117 m

Shore length1
  
21 mi (34 km)

Catchment area
  
108 sq mi (280 km)

Area
  
18.13 km²

Width
  
1.77 km

Islands
  
Cemetery Island

Wachusett Reservoir wwwmwrastatemausimagessitewidewaterimages

Location
  
Worcester County, Massachusetts, United States

Primary inflows
  
Nashua River, Quinapoxet River, Stillwater River, Quabbin Aqueduct

Primary outflows
  
Wachusett Aqueduct, Cosgrove Tunnel, Nashua River

Cities
  
West Boylston, Clinton, Boylston, Sterling, Lancaster

Similar
  
Quabbin Reservoir, Mount Wachusett, Wachusett Dam, Old Stone Church, Quinsigamond State Park

Wachusett reservoir salmon fishing


The Wachusett Reservoir is the second largest body of water in the state of Massachusetts. It is located in central Massachusetts, northeast of Worcester. It is part of the water supply system for metropolitan Boston maintained by the Massachusetts Water Resources Authority (MWRA). It has an aggregate capacity of 65 billion US gallons (250,000,000 m3) and an area of almost 7 square miles (18.2 km²). Water from the Wachusett flows to the covered Norumbega Storage Facility via the Cosgrove Tunnel and the MetroWest Water Supply Tunnel. The reservoir has a maximum depth of 120 feet (36.5 m) and a mean depth of 48 feet (14.6 m).

Contents

Map of Wachusett Reservoir, Massachusetts, USA

The reservoir serves as both an intermediate storage reservoir for water from the Quabbin Reservoir as well as a water source itself as it is also fed by its own watershed. The reservoir is fed by the Quinapoxet, and Stillwater rivers, along with the Quabbin Aqueduct, which carries water from the Quabbin Reservoir. It is part of the Nashua River Watershed and is the headwaters of the Nashua River. Because it is an intermediate storage reservoir, its water levels are kept relatively constant while the Quabbin Reservoir fluctuates based on precipitation and demand. At times when the Wachusett Reservoir becomes high due to its own watershed producing a large amount of runoff such as during snow melting, the flow from the Quabbin is shut off and water from the Ware River flows backwards down the Quabbin Aqueduct into the Quabbin Reservoir for storage.

Wachusett reservoir underwater smallmouth bass and exploration


HistoryEdit

In 1897, the Nashua River above the town of Clinton was impounded by the Wachusett Dam. 4,380 acres (17.5 km²) were flooded in the towns of Boylston, West Boylston, Clinton, and Sterling. Work was completed in 1905 and the reservoir first filled in May 1908. Its water was originally delivered to the Sudbury Reservoir via the Wachusett Aqueduct, with the Cosgrove Tunnel (completed in 1965) providing redundancy. Interconnections at the Sudbury Reservoir eventually delivered the water to the Weston Reservoir via the Weston Aqueduct; these downstream facilities were relegated to backup roles in the late 20th and early 21st century by the construction of the MetroWest Water Supply Tunnel and covered storage facilities.

West Boylston's prominent landmark — The Old Stone Church — was left remaining as a reminder of those that lost their homes and jobs to the building of the reservoir. It is one of the most photographed sites in the area.

When it was built, the Wachusett Reservoir was the largest public water supply reservoir in the world and the largest body of water in Massachusetts. It has since been surpassed by the Quabbin Reservoir. (See that article for a history of reservoir building in Massachusetts.)

Recreation and fishingEdit

Because the reservoir is the water supply for Boston, not all areas around it are open to the public. Regulations designed to ensure pure water include the prohibiting of boats, ice fishing, wading, swimming, overnight camping, alcoholic beverages, littering, animals, bikes, and motor vehicles from the reservoir and abutting property. These regulations are controversial to recreation and fishing proponents, who argue the rules are not needed to protect water quality. A network of fire roads provides easy access for hikers and cross-country skiers.

In 1999, the reservoir contained 12 native and 12 introduced species of fish. The limited access, combined with abundant, high-quality habitat, produced state records for brown trout, land-locked salmon, smallmouth bass, and white perch. Approximately 80% of the 37 mile (59.5 km) shoreline is usually open to angling from April 1 through November 30, depending on ice conditions.

References

Wachusett Reservoir Wikipedia


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