Thetford Center Covered Bridge

The Thetford Center Covered Bridge is a historic covered bridge, carrying Tucker Hill Road across the Ompompanoosuc River in Thetford, Vermont. It is the state's only known example of the Haupt patent truss system. It was listed on the National Register of Historic Places in 1974.[1]

Thetford Center Covered Bridge
U.S. National Register of Historic Places
U.S. Historic district Contributing property
Location	Tucker Hill Rd. over Ompompanoosuc River, Thetford, Vermont
Coordinates	43°49′55″N 72°15′12″W
Area	1 acre (0.40 ha)
Architectural style	Haupt patent truss
Part of	Thetford Center Historic District (ID98000220)
NRHP reference No.	74000247[1]
Significant dates
Added to NRHP	September 17, 1974
Designated CP	March 5, 1998

Description and history

The Thetford Center Covered Bridge is located a short way west of the village of Thetford Center, spanning the south-flowing Ompompanoosuc River, a tributary of the Connecticut River. The bridge has a span of 128.5 feet (39.2 m), and rests on dry laid stone abutments that have been capped in concrete and a central concrete pier. The bridge is covered by a metal roof and sheathed in vertical board siding. The portal ends project beyond the deck by about 1 foot (0.30 m). The deck is now supported by steel I-beams, and the original bridge trusses support only the bridge superstructure. The bridge has a total width of 20.5 feet (6.2 m), with an 18-foot (5.5 m) wide roadway (one lane). The bridge trusses are a variant of a multiple kingpost truss. Each truss has verticals and diagonals in that style, but is further augmented by a laminated arch, consisting of heavy planks pegged together.[2]

The bridge's construction date is unknown. It is the only example of the Haupt patent truss known in the state, and may be the only example in the northeastern United States. The alterations made to support the deck with I-beams, including capping the abutments and adding the central pier, were made in 1963.[2]

See also

•  Transport portal
•  Engineering portal
• National Register of Historic Places listings in Orange County, Vermont
• List of Vermont covered bridges
• List of bridges on the National Register of Historic Places in Vermont

References

1. "National Register Information System". National Register of Historic Places. National Park Service. July 9, 2010.
2. Hugh Henry (1974). "NRHP nomination for Thetford Center Covered Bridge". National Park Service. Retrieved 2016-09-12. with photos from 1974