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A covered bridge is a timber-truss bridge with a roof, decking, and siding, which in most covered bridges create an almost complete enclosure. The purpose of the covering is to protect the wooden structural members from the weather. Uncovered wooden bridges typically have a lifespan of only 20 years because of the effects of rain and sun, but a covered bridge could last over 100 years. In the United States, only about 1 in 10 survived the 20th century. The relatively small number of surviving bridges is due to deliberate replacement, neglect, and the high cost of restoration.
The Bartonsville Covered Bridge is a wooden covered bridge in the village of Bartonsville, in Rockingham, Vermont, United States. The bridge is a lattice truss style with a 151-foot span, carrying Lower Bartonsville Road over the Williams River. It was built in 2012, replacing a similar bridge built in 1870 by Sanford Granger. The 1870 bridge, which was listed on the National Register of Historic Places, was destroyed in 2011 in flooding caused by Hurricane Irene.
Whites Bridge is a 120-foot-long (37 m) Brown truss covered bridge, originally erected in 1869 in Keene Township, Michigan, United States, near Smyrna on the Flat River. Carrying Whites Bridge Road across the Flat River, it is located north of the Fallasburg Bridge and south of Smyrna. The original bridge was among the area's best-known 19th century structures. The bridge was completely destroyed by fire, on the morning of July 7, 2013. In July 2016, approval was granted for rebuilding a replica bridge, which was completed in April 2020.
The Cornish–Windsor Covered Bridge is a 156-year-old, two-span, timber Town lattice-truss, interstate, covered bridge that crosses the Connecticut River between Cornish, New Hampshire, and Windsor, Vermont. Until 2008, when the Smolen–Gulf Bridge opened in Ohio, it had been the longest covered bridge in the United States.
The Columbia Bridge is a covered bridge, carrying Columbia Bridge Road over the Connecticut River between Columbia, New Hampshire and Lemington, Vermont. Built in 1911–12, it is one of only two New Hampshire bridges built with Howe trusses, and is one of the last covered bridges built in the historic era of covered bridge construction in both states. It was listed on the National Register of Historic Places in 1976.
The Bedell Bridge was a Burr truss covered bridge that spanned the Connecticut River between Newbury, Vermont and Haverhill, New Hampshire. Until its most recent destruction in 1979, it was, with a total length of 382 feet (116 m), the second-longest covered bridge in the United States. The bridge was divided into two spans of roughly equal length, and rested on a central pier and shore abutments constructed from mortared rough stone. The eastern abutment has been shored up by the addition of a concrete footing. The bridge was 23 feet (7.0 m) wide, with a roadway width of 18.5 feet (5.6 m). Because the state line is the western low-water mark of the Connecticut River, most of the bridge was in New Hampshire; only the western abutment is in Vermont.
Old Blenheim Bridge was a wooden covered bridge that spanned Schoharie Creek in North Blenheim, New York, United States. With an open span of 210 feet (64 m), it had the second longest span of any surviving single-span covered bridge in the world. The 1862 Bridgeport Covered Bridge in Nevada County, California, currently undergoing repairs due to 1986 flooding is longer overall at 233 feet (71 m) but is argued to have a 208 feet (63 m) clear span. The bridge, opened in 1855, was also one of the oldest of its type in the United States. It was destroyed by flooding resulting from Tropical Storm Irene in 2011. Rebuilding of the bridge commenced in 2017 and was completed in 2018.
The Bellows Falls Arch Bridge was a three-hinged steel through arch bridge over the Connecticut River between Bellows Falls, Vermont and North Walpole, New Hampshire. It was structurally significant as the longest arch bridge in the United States when it was completed in 1905.
The Bath Covered Bridge is a historic covered bridge over the Ammonoosuc River off US 302 and NH 10 in Bath, New Hampshire. Built in 1832, it is one of the state's oldest surviving covered bridges. It was listed on the National Register of Historic Places in 1976, and underwent a major rehabilitation in the 2010s.
The Contoocook Railroad Bridge is a covered bridge on the former Contoocook Valley Railroad line spanning the Contoocook River in the center of the village of Contoocook, New Hampshire, United States. It is referred to in the National Register of Historic Places as the Hopkinton Railroad Covered Bridge, for the town of Hopkinton, New Hampshire, in which the village of Contoocook is located.
The Great Eddy Covered Bridge, also called the Big Eddy Covered Bridge or Waitsfield Covered Bridge, is a wooden covered bridge that crosses the Mad River in Waitsfield, Vermont on Bridge Street. Built in 1833, it is one of Vermont's oldest covered bridges. It was listed on the National Register of Historic Places in 1974.
The Longley Covered Bridge, also known as the Harnois Covered Bridge, is a wooden covered bridge that crosses the Trout River in Montgomery, Vermont on Longley Bridge Road. Built in 1863, this Town lattice truss bridge is the oldest of a group of area bridges built by brothers Sheldon & Savannah Jewett. It was listed on the National Register of Historic Places in 1974. The bridge is closed to traffic, and has been bypassed by an adjacent temporary bridge.
The Hammond Covered Bridge is a Town lattice covered bridge spanning Otter Creek in Pittsford, Vermont. The bridge was built in 1842 by Asa Norse, and originally carried Kendall Hill Road, which now passes just to its south. The bridge was added to the National Register of Historic Places on January 21, 1974.
The Hall Covered Bridge, located in southern Rockingham, Vermont, carries Hall Bridge Road across the Saxtons River, just north of its junction with Vermont Route 121. It is a Town lattice truss bridge, built in 1982 as a replica of a circa-1867 bridge that was destroyed by an overweight truck in 1980. The bridge was listed on the National Register of Historic Places in 1973.
Scott Covered Bridge is a covered bridge spanning the West River in Townshend, Vermont. Built in 1870, it is at 277 feet (84 m) one of the longest covered bridges in the state, exhibiting three different forms of support: a Town lattice truss, kingpost trusses, and laminated arches. The bridge was listed on the National Register of Historic Places in 1973. It is closed to all traffic.
The Centre Covered Bridge, also known as the Sanborn Covered Bridge, is a historic covered bridge, spanning the Passumpsic River next to U.S. Route 5 (US 5) north of the village of Lyndonville, Vermont. Built in 1872, it was moved to its present location and taken out of service in 1960. It is one of three surviving Paddle-Ford truss bridges in Vermont. It was listed on the National Register of Historic Places in 1974.
The West Milton Bridge is a steel girder bridge carrying Bear Trap Road across the Lamoille River in Milton, Vermont, United States. It was built as a replacement for a 1902 Pennsylvania truss bridge, which was relocated to the site of the Swanton Covered Railroad Bridge, and is listed on the National Register of Historic Places.
The River Road Covered Bridge was a historic covered bridge, carrying Veilleux Road across the Missisquoi River in Troy, Vermont. Built in 1910, the Town lattice truss was the only surviving covered bridge in Troy from the historic period of covered bridge construction when it burned on February 6, 2021. It also exhibited some distinctive variations in construction from more typical Town lattices. It was listed on the National Register of Historic Places in 1974.
The Lyme–East Thetford Bridge is a historic bridge over the Connecticut River between Lyme, New Hampshire, and East Thetford, Vermont. From the New Hampshire side it carries East Thetford Road, which becomes Vermont Route 113 as it enters Vermont. A Parker truss bridge completed in 1937, it is 471 feet (144 m) long. The bridge was added to the National Register of Historic Places in 2020.
References
- ↑ "History of the Covered Bridge". Mills Riverside Park. Jericho Underhill Park District. Retrieved 31 August 2022.
- 1 2 Caswell, William S. World Guide to Covered Bridges (2021 ed.). Concord, New Hampshire: National Society for the Preservation of Covered Bridges. pp. 137–154. ISBN 978-0-578-30263-8.
- ↑ WCAX News Team (6 February 2021). "Landmark covered bridge in Troy collapses from fire damage". WCAX. Gray Television, Inc. Retrieved 6 February 2021.
