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Mianus River Bridge

1958 establishments in Connecticut1983 disasters in the United StatesBridge disasters caused by maintenance errorBridge disasters in the United StatesBridges completed in 1958
Bridges in Fairfield County, ConnecticutBridges on the Interstate Highway SystemBuildings and structures in Greenwich, ConnecticutDisasters in ConnecticutFormer toll bridges in ConnecticutGirder bridges in the United StatesInterstate 95Road bridges in ConnecticutTransportation disasters in ConnecticutUse mdy dates from March 2018

The Mianus River Bridge is a span that carries Interstate 95 (Connecticut Turnpike) over the Mianus River, between Cos Cob and Riverside, Connecticut. It is the second bridge on the site. The original bridge collapsed in 1983, killing three motorists. The replacement span is officially named the Michael L. Morano Bridge, after a state senator Michael L. Morano who represented Greenwich.

Excerpt from the Wikipedia article Mianus River Bridge (License: CC BY-SA 3.0, Authors).

Mianus River Bridge
Pierce Road,

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N 41.036666666667 ° E -73.591944444444 °
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Michael L. Morano Bridge

Pierce Road
06876
Connecticut, United States
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Mianus River Railroad Bridge
Mianus River Railroad Bridge

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. The bridge carries the Northeast Corridor, the busiest rail line in the United States, both in terms of ridership and service frequency. 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. It is one of eight moveable bridges on the Northeast Corridor through Connecticut surveyed in one multiple property study in 1986. The eight bridges from west to east are: this Mianus River Railroad Bridge, at Cos Cob, built in 1904; Norwalk River Railroad Bridge at South Norwalk, 1896; Saugatuck River Railroad Bridge at Westport, 1905; Pequonnock River Railroad Bridge at Bridgeport, 1902; Housatonic River Railroad Bridge, at Devon, 1905; Connecticut River Railroad Bridge, Old Saybrook-Old Lyme, 1907; Niantic River Bridge, East Lyme-Waterford, 1907; and Thames River Bridge (Amtrak), Groton, built in 1919. The Pequonnock River bridge—also on Metro-North's New Haven Line, as are the Norwalk, Westport, and Devon bridges—has since been replaced.

Cos Cob Power Station
Cos Cob Power Station

Cos Cob Power Station was a historic power station near the Metro-North Railroad tracks, the Mianus River and Sound Shore Drive in the Cos Cob area of Greenwich, Connecticut. The Spanish Revival style station building of 1907 was significant as part of the first mainline railroad electrification in the United States, using alternating current (AC) electrification. The New York City subway systems and a Hudson River railroad line used lower voltage direct current (DC) electrification, but for longer distances that would mean high transmission losses or frequent and closely spaced substations.: 11 A 1903 New York State law prohibited the use of steam locomotives in New York City. The New Haven line of the New York, New Haven and Hartford Railroad ran commuter trains into the city, and electrification all the way to New Haven would avoid massive congestion and delays to commuter trains if locomotives were changed at the New York City limits or at Stamford, CT. The "New Haven" chose AC electrification as proposed by Baldwin-Westinghouse, with locomotives which could operate on the third-rail DC system within city limits, and the AC system on the main line. The plant was built by Westinghouse in 1907 in Mission Style, and was located where the Mianus River empties into the Cos Cob Harbor of Long Island Sound. The plant used coal-fired steam turbines, and the three-phase alternators supplied single-phase power at 11 kV 25 Hz directly to the catenary. They also supplied power to the New York Central's Port Morris generating station to compensate the NYC for power consumed by New Haven trains on the NYC's third-rail supplied line to the Grand Central Terminal within the city limits. The station was designated a Historic Mechanical Engineering Landmark in 1982 by the American Society of Mechanical Engineers.The power station was decommissioned in 1986-87.The plant was listed on the National Register of Historic Places in 1990, but despite the listing and local and national debate, the plant was demolished in 2001. Part of the site is now a public park, and a plaque commemorating the plant is located at the nearby Cos Cob Railroad Station.