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The Mount Orne Bridge is a
covered bridge 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 woo ...
over the
Connecticut River The Connecticut River is the longest river in the New England region of the United States, flowing roughly southward for through four states. It rises 300 yards (270 m) south of the U.S. border with Quebec, Canada, and discharges at Long Island ...
between
Lancaster, New Hampshire Lancaster is a New England town, town located along the Connecticut River in Coös County, New Hampshire, Coös County, New Hampshire, United States. The town is named after the city of Lancaster, Lancashire, Lancaster in England. As of the 2020 ce ...
, and
Lunenburg, Vermont Lunenburg is a town in Essex County, Vermont, United States. The population was 1,246 at the 2020 census, the most populous in Essex County. Lunenburg contains the villages of West Lunenburg, South Lunenburg, Mill Village (Northern Lunenburg) ...
. It joins Elm Street (
New Hampshire Route 135 New Hampshire Route 135 (abbreviated NH 135) is a north–south state highway in New Hampshire. The highway runs along the Connecticut River from Woodsville in the town of Haverhill to Lancaster. The southern terminus of NH 135 is at New Ha ...
) in South Lancaster with River Road (Town Highway 1) in Lunenburg. Built in 1911, it is one of two
Howe truss A Howe truss is a truss bridge consisting of chords, verticals, and diagonals whose vertical members are in tension and whose diagonal members are in compression. The Howe truss was invented by William Howe in 1840, and was widely used as a bridg ...
bridges across the Connecticut River. It was listed on the
National Register of Historic Places The National Register of Historic Places (NRHP) is the United States federal government's official list of districts, sites, buildings, structures and objects deemed worthy of preservation for their historical significance or "great artistic v ...
in 1976.


Description and history

The Mount Orne Covered Bridge is located in a rural area of eastern Lunenburg and southwestern Lancaster. It spans the
Connecticut River The Connecticut River is the longest river in the New England region of the United States, flowing roughly southward for through four states. It rises 300 yards (270 m) south of the U.S. border with Quebec, Canada, and discharges at Long Island ...
in a roughly northwest-southeast orientation. It consists of two spans of wood-and-iron
Howe truss A Howe truss is a truss bridge consisting of chords, verticals, and diagonals whose vertical members are in tension and whose diagonal members are in compression. The Howe truss was invented by William Howe in 1840, and was widely used as a bridg ...
es, resting on stone
abutments An abutment is the substructure at the ends of a bridge span or dam supporting its superstructure. Single-span bridges have abutments at each end which provide vertical and lateral support for the span, as well as acting as retaining walls ...
and piers which have been partially faced in concrete. The overall length of the bridge is , with the western span measuring and the eastern span less. The bridge has an overall width of , with a roadway of . The bridge is covered by a corrugated metal gable roof, and is sided in vertical boarding that extends only partway to the eaves. The siding extends around to the insides of the portals. The bridge was built in 1911 by the Berlin Construction Company, replacing one that was washed away by flooding in 1905. It is one of only two Howe truss bridges over the Connecticut River; the other, the Columbia Bridge, was built in 1912. The two bridges are among the last to be built during the historic period of covered bridge construction in either state. The costs of construction and maintenance are shared by the two towns. In 1983, the bridge temporarily closed on July 5 for repair work; it was reopened and rededicated on November 23. In November 2023, the bridge was closed (for an as yet undetermined amount of time) due to damage caused by an oversized vehicle driving through it.


See also

*
List of crossings of the Connecticut River This is a list of bridges and other crossings of the Connecticut River from its mouth at Long Island Sound upstream to its source at the Connecticut Lakes. The list includes current road and rail crossings, as well as ferries carrying a state high ...
*
List of covered bridges in Vermont Below is a list of covered bridges in Vermont. There are just over 100 authentic covered bridges in the U.S. state of Vermont, giving the state the highest number of covered bridges per square mile in the United States. A covered bridge is consid ...
*
List of covered bridges in New Hampshire This is a list of New Hampshire covered bridges, old, new, and restored. There are 58 historic wooden covered bridges currently standing and assigned official numbers by the U.S. state of New Hampshire. There are additional covered bridges extant ...
*
List of bridges on the National Register of Historic Places in Vermont This is a list of bridges and tunnels on the National Register of Historic Places in the U.S. state of Vermont. See also * List of covered bridges in Vermont * List of non-authentic covered bridges in Vermont References {{DEFAULTSORT:List ...
*
List of bridges on the National Register of Historic Places in New Hampshire This is a list of bridges on the National Register of Historic Places in the U.S. state of New Hampshire. Current listings Former listing See also *List of covered bridges in New Hampshire Notes References {{National Register of Histo ...
* National Register of Historic Places listings in Essex County, Vermont * National Register of Historic Places listings in Coös County, New Hampshire


References


External links

* {{Connecticut River 1911 establishments in Vermont 1911 establishments in New Hampshire Buildings and structures in Lunenburg, Vermont Bridges over the Connecticut River Covered bridges on the National Register of Historic Places in New Hampshire Covered bridges on the National Register of Historic Places in Vermont Bridges completed in 1911 Wooden bridges in Vermont Wooden bridges in New Hampshire Tourist attractions in Coös County, New Hampshire Bridges in Coös County, New Hampshire Bridges in Essex County, Vermont Tourist attractions in Essex County, Vermont National Register of Historic Places in Coös County, New Hampshire National Register of Historic Places in Essex County, Vermont Lancaster, New Hampshire Road bridges on the National Register of Historic Places in New Hampshire Road bridges on the National Register of Historic Places in Vermont Howe truss bridges in the United States Interstate vehicle bridges in the United States