Cornwall Bridge

The Cornwall Bridge (also known as Bridge No. 560) is a two-lane, concrete arch bridge carrying U.S. Route 7/Connecticut Route 4 over the Housatonic River and the Housatonic Railroad in Northwestern Connecticut. It was built in 1930 by C.W. Blakeslee and Sons for the Connecticut Highway Department and consists of 6 open-spandrel arches spanning 674 feet (205 m), and is a fairly large example of concrete open-spandrel construction.[2] The bridge was reconstructed in 1994 and was listed on the National Register of Historic Places in 2004.[1]

Cornwall Bridge
View of the NRHP listed Cornwall Bridge Railroad Station through an arched span of the Bridge, March 24, 2012
Coordinates41°49′10″N 73°22′22″W
Bridge No. 560
Arealess than one acre
ArchitectConnecticut Highway Department; Blakeslee, C.W. & Sons
NRHP reference No.04001090[1]
Added to NRHPSeptember 29, 2004
Carries2 lanes of US 7 / Route 4
CrossesHousatonic River
LocaleSharon and Cornwall, Connecticut
Official nameBridge No. 560
Maintained byConnecticut Department of Transportation
Characteristics
Designopen spandrel concrete arch
Total length674 feet (205 m)
History
Opened1930
Location

Description and history

The Cornwall Bridge is located in southwestern Cornwall and southeastern Sharon, near the village known as Cornwall Bridge. It is oriented east-west, principally crossing the south-flowing Housatonic River, but also the tracks of the Housatonic Railroad which parallels the river's east bank, and roads named River Road on each side. The bridge has six spans of open-spandrel concrete construction, the longest at 180 feet (55 m) spanning the river. The five smaller spans (two on the west bank, three on the east) are each 76 feet (23 m) in length. In addition to the arched portion of the structure, there are three concrete girder approach spans on each side, giving the bridge a total length of 859 feet (262 m). It carries two lanes of traffic, with no sidewalks.[2]

The open spandrel design was chosen to minimize the bridge's footprint and use of concrete, which would have been much more extensive and expensive with more typical designs. It is one of six open-spandrel bridges in the state, and is the largest of those. The bridge was built as part of a state program to modernize the infrastructure of the state's principal travel arteries.[2]

The village on the Cornwall side is called Cornwall Bridge, having been so named because a bridge of some sort has stood here for many years. The present bridge was built in 1930, and the 19th-century covered bridge was demoted to carrying only pedestrians. The covered bridge then washed away when the Housatonic flooded in 1936. After the state replaced the bridge, the industrial and commercial center of the Village of Cornwall Bridge slowly moved up the hill away from the river, to the current intersection of US Route 7 and Connecticut Route 4.[3] The Cornwall Bridge Railroad Station remains below the new bridge, although it has not received service since 1972.

See also

References
  1. "National Register Information System". National Register of Historic Places. National Park Service. March 13, 2009.
  2. "NRHP nomination for Bridge No. 560". National Park Service. Retrieved 2015-01-08.
  3. Cornwall Historical Society, “Cornwall Bridge,” http://www.cornwallhistoricalsociety.org/research-and-collections/common-topics-and-subject-guides/the-eight-cornwalls/cornwall-bridge/

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