Sudbury Reservoir

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Sudbury Reservoir
Metropolitan Water District map (Boston, MA, 1910).jpg
Metropolitan Water District system, 1910
Relief map of USA Massachusetts.png
Red pog.svg
Location in Massachusetts
Location Middlesex County and Worcester County, Massachusetts, United States
Coordinates 42°19′21″N71°30′45″W / 42.32250°N 71.51250°W / 42.32250; -71.51250 [1]
Area4,943 acres (20.00 km2) [2]
Elevation249 ft (76 m) [1]
Established1894-1898
Governing body Massachusetts Department of Conservation and Recreation
Website Sudbury Reservoir

The Sudbury Reservoir (2.02 square miles) is an emergency backup Boston metropolitan water reservoir in Massachusetts, located predominantly in Southborough and Marlborough, with small sections in Westborough and Framingham. [3] It was created when the Sudbury Dam was constructed to impound the Stony Brook branch of the Sudbury River; no part of the reservoir lies in the town of Sudbury. Nearly 5,000 acres (2,000 ha) in the Sudbury Reservoir watershed are administered by the Massachusetts Department of Conservation and Recreation as a limited-access public recreation area. [2]

Contents

History

A section of the reservoir as seen from Middle Road in Southborough Sudbury Reservoir at Middle Road.jpg
A section of the reservoir as seen from Middle Road in Southborough

The reservoir was first begun in 1878, as part of a system of reservoirs fed from the Sudbury River to supplement the Lake Cochituate system in Natick. Today's reservoir was created by excavation from 1894 to 1898, with construction undertaken in sections. It was begun by the City of Boston but completed by the newly formed Metropolitan Water Board (predecessor to the modern Massachusetts Water Resources Authority). All told, construction required moving about 4.5 million cubic yards (3.4 million cubic metres) of soil and boulders. Water began to fill the reservoir on February 8, 1897, with construction of the reservoir's new Sudbury Dam on the Stony Brook Branch of the Sudbury River completed later that year. [4]

When completed, the reservoir's surface area was 2.02 square miles (5.2 km2), its average depth was 17 feet (5.2 m) and maximum depth was 65 feet (20 m), and its capacity was 7.253 billion US gallons (27.46 billion litres). [5] The reservoir was fed from the Wachusett Reservoir on the west by the Wachusett Aqueduct (1898), and by local streams. To improve the water quality of the local streams, filter beds were constructed adjacent to the reservoir. The reservoir's water was delivered to the Weston Reservoir to the east by the Weston Aqueduct (1901), or via a channel to the Framingham reservoirs and the Sudbury Aqueduct to the Chestnut Hill Reservoir.

In 1947, the obsolete Whitehall, Hopkinton, Ashland and Cochituate reservoirs became state parks; and in 1976, the entire Sudbury System was officially reclassified as an emergency water supply. Today only the Sudbury Reservoir and the Foss Reservoir (Framingham Reservoir No. 3) remain as reserve drinking water supplies with the Weston and Sudbury aqueducts serving as reserve transmission. [2] In an emergency the Sudbury and Foss reservoirs can be placed into service either as a primary source, as an alternate pass-through for Quabbin/Wachusett reservoir water in the event of a transmission problem blocking the normal transmission pathways, or as a supplemental source in a major drought. In all cases, the water would be untreated and would likely require boiling for consumption.

Permitted activities

The area's limited public access allows for picnicking, hiking, snowshoeing, cross-country skiing, and shoreline fishing with restrictions. [2]

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<span class="mw-page-title-main">Lake Cochituate</span> Reservoir in Middlesex County, Massachusetts

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<span class="mw-page-title-main">Ashland Dam and Spillway</span> United States historic place

The Ashland Dam and Spillway is a historic site at the north end of Ashland Reservoir in Ashland State Park in Ashland, Massachusetts. Ashland Reservoir was constructed in 1885, impounding a portion of Cold Spring Brook, a tributary of the Sudbury River. The dam and spillway were built as part of Boston's second major water works effort, which impounded large portions of the upper Sudbury River. They were listed on the National Register of Historic Places in 1990.

<span class="mw-page-title-main">Framingham Reservoir No. 1 Dam and Gatehouse</span> United States historic place

The Framingham Reservoir No. 1 Dam and Gatehouse is a historic water works facility in Framingham, Massachusetts. This complex is located at the end of Framingham Reservoir No. 1, which is also known as the Stearns Reservoir, off Winter Street and north of Long Avenue. Constructed from 1876 to 1878 as part of an expansion of the water supply of the city of Boston, this was designed by its first city architect George A. Clough. The historical purpose of the reservoir, which was located at the confluence of two branches of the Sudbury River, was primarily to control the river's water level, and secondarily to provide reserve supply capacity. The reservoir's reserve capacity was generally used only as a backup supply, as the reservoir's muddy bottom made it a less desirable source than reservoir No. 3 upstream. However the reservoir No. 1 system was nonetheless important due to its role in controlling the flow of the river downstream, and due to the gatehouse which controlled the water flows for all the Framingham reservoirs into the Sudbury Aqueduct. Reservoir No. 1 is no longer maintained as a reserve water source, although it is still owned by the Massachusetts Water Resources Authority, successor to the Boston Water Board which oversaw its construction. MWRA retains ownership as the gatehouse contains the connection between Reservoir No. 3 and the Sudbury Aqueudct which remain part of the emergency water systems.

<span class="mw-page-title-main">Framingham Reservoir No. 3 Dam and Gatehouse</span> United States historic place

The Framingham Reservoir No. 3 Dam and Gatehouse is a historic waterworks facility in Framingham, Massachusetts. The dam and gatehouse are located at the southeastern end of Framingham Reservoir No. 3, off Massachusetts Route 9. They were built 1876–78 as part of an expansion of the public water supply of the city of Boston. The dam is 2,280 feet (690 m) long, and impounds an area of 253 acres (102 ha) in the Sudbury River watershed. The reservoir is the largest of the three Framingham reservoirs that were built at that time. The dam's core is constructed of granite rubble laid in cement. There is a granite-lined overfall area 100 feet (30 m) long, which was originally topped by flashboards. At the end of the overfall area nearest Route 9 stands the gatehouse, a granite structure with a rectangular main block and a smaller wing. Both sections have a steeply pitched slate roof. The door is in a round-arch recess, and the building is capped by a cupola. It houses controls for two 4-foot (1.2 m) mains connected to the Sudbury Aqueduct via the gatehouse at Reservoir No. 1. The water is directed either directly beyond the dam into reservoir 1 or through the 4-foot mains to the Sudbury Aqueduct gatehouse.

<span class="mw-page-title-main">Sudbury Dam Historic District</span> Historic district in Massachusetts, United States

The Sudbury Dam Historic District is a historic district on the southeastern end of Sudbury Reservoir off Massachusetts Route 30 in Framingham and Southborough, Massachusetts. The district encompasses the Sudbury Dam, which impounds the reservoir, and an area encompassing several historic structures located below the dam. The area includes water-supply-related structures from three phases of development of the Greater Boston water supply system. It was listed on the National Register of Historic Places in 1990.

<span class="mw-page-title-main">Sudbury Aqueduct</span> United States historic place

The Sudbury Aqueduct is an aqueduct in Massachusetts. It runs for 16 miles (26 km) from Farm Pond at Waverly Street in Framingham to Chestnut Hill Reservoir in Boston’s Chestnut Hill neighborhood. A later built extension main runs from the Farm Pond gatehouse to the gatehouse at the Stearns Reservoir where additional mains connect to the Brackett and Foss Reservoirs Going east from Framingham, it runs through Sherborn before entering Natick. From Natick it runs east through Wellesley and Needham to the Charles River, which it crosses on the Echo Bridge into Newton. It ends at the Chestnut Hill Reservoir on the Newton side of the Newton-Boston line. The Massachusetts Water Resources Authority (MWRA) operates the aqueduct.

Shepard & Stearns was an architecture partnership that operated in Boston and greater New England.

References

  1. 1 2 "Sudbury Reservoir". Geographic Names Information System . United States Geological Survey, United States Department of the Interior.
  2. 1 2 3 4 "Sudbury Reservoir". MassParks. Executive Office of Energy and Environmental Affairs. Retrieved February 9, 2014.
  3. "Wachusett and Sudbury Reservoirs Fishing Regulations". Department of Conservation and Recreation, Division of Water Supply Protection. Retrieved November 26, 2019 via mass.gov.
  4. Third Annual Report. Boston: Metropolitan Water Board. 1898. pp. 66–72. Retrieved February 25, 2017.
  5. American Association for the Advancement of Science (1898). A Handbook of the Principal Scientific Institutions of Boston and Vicinity. Boston: Rockwell and Churchill Press. p. 85. Retrieved February 25, 2017.

Additional sources