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Mianus River Railroad Bridge

Coordinates: 41°1′51″N 73°35′41″W / 41.03083°N 73.59472°W / 41.03083; -73.59472
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Mianus River Railroad Bridge
Mianus River Railroad Bridge in 1977
Mianus River Railroad Bridge is located in Connecticut
Mianus River Railroad Bridge
Mianus River Railroad Bridge is located in the United States
Mianus River Railroad Bridge
LocationMetro-North Right-of-way at Mianus River, Greenwich, Connecticut
Coordinates41°1′51″N 73°35′41″W / 41.03083°N 73.59472°W / 41.03083; -73.59472
Area1 acre (0.40 ha)
Built1904 (1904)
ArchitectAmerican Bridge Company
Architectural styleDeck Girder, Bascule
MPSMovable Railroad Bridges on the NE Corridor in Connecticut TR
NRHP reference No.87000845[1]
Added to NRHPJune 12, 1987

The Mianus River Railroad Bridge, also known as the Cos Cob Bridge, is a bascule drawbridge built in 1904 over the Mianus River, in Greenwich, Connecticut. It was listed on the National Register of Historic Places in 1987.[1] The bridge carries the Northeast Corridor, the busiest rail line in the United States, both in terms of ridership and service frequency.[2][3] It is operated by the Metro-North Railroad, successor to Conrail, Penn Central, and the New York, New Haven and Hartford Railroad, which erected it, and is owned by the Connecticut Department of Transportation.

It is a rolling lift type moveable bridge, and was prefabricated by the American Bridge Company, to replace a previous unsafe bridge on the site. It has a total length of 1,059 feet (323 m), divided into 11 spans. Seven of these are deck truss spans, while the others are deck girder spans, all set on stone abutments. The main movable span is 107 feet (33 m) long; four of the truss spans are 120 feet (37 m) in length.[4]

It is one of eight moveable bridges on the Northeast Corridor through Connecticut surveyed in one multiple property study in 1986.[5] In November 2024, the Connecticut Department of Transportation was awarded a $6.4 million federal grant to "explore options for replacement" of the bridge.[6]

See also

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References

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  1. ^ a b "National Register Information System". National Register of Historic Places. National Park Service. March 13, 2009.
  2. ^ "Amtrak Sets Ridership Record And Moves The Nation's Economy Forward - America's Railroad helps communities grow and prosper" (PDF) (Press release). Amtrak. October 14, 2013. Retrieved 2014-09-03.
  3. ^ "Transportation Statistics Annual Report" (PDF). Bureau of Transportation Statistics, U.S. Department of Transportation. November 2005. Archived from the original (PDF) on 2014-10-21. Retrieved 2007-02-18.
  4. ^ Anne Baggerman (August 10, 1977). "National Register of Historic Places Inventory-Nomination: Mianus River Railroad Bridge / Cos Cob Bridge". National Park Service. and Accompanying two photos, from 1986
  5. ^ Bruce Clouette, Matthew Roth and John Herzan (February 4, 1986). "Movable Railroad Bridges on the NE Corridor in Connecticut TR". National Park Service. Retrieved 2016-02-26.
  6. ^ "FY 2024 Federal-State Partnership for Intercity Passenger Rail Program for the Northeast Corridor (FSP-NEC) Selections: Project Summaries" (PDF). Federal Railroad Administration. November 2024. p. 1.
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