Prentiss Bridge
U.S. National Register of Historic Places
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Location	Great Brook near Chester Turnpike, Langdon, New Hampshire
Coordinates	43°9′11″N 72°23′38″W / 43.15306°N 72.39389°W / 43.15306; -72.39389
Area	0.3 acres (0.12 ha)
Built	c. 1874 (1874)
Architectural style	Town lattice truss
NRHP reference No.	73000179[1]
Added to NRHP	May 24, 1973

The Prentiss Bridge is a historic covered bridge in Langdon, New Hampshire. Built about 1874, it spans Great Brook just east of the modern alignment of Chester Turnpike, which it carried until it was bypassed by a modern bridge in 1955. At 36 feet (11 m) in length, it is the shortest 19th-century covered bridge built for use on a public roadway in New Hampshire that is still standing.^[2] The bridge was listed on the National Register of Historic Places in 1973.^[1]

Description and history

The Prentiss Bridge is located in a rural setting in southern Langdon, spanning Great Brook east of Chester Turnpike, about 0.2 miles (0.32 km) south of its junction with Lower Cemetery Road. It is a Town lattice truss, 36 feet long and 15 feet (4.6 m) wide, set on stone abutments. Its exterior is finished in vertical board siding, with a ventilation gap between the siding and the gabled roof.^[2]

Bridges are known to have stood on the site since at least 1791, when the town requested a report on a bridge standing here. In 1794, the town appropriated funds to build a bridge near the mill of Jabez Rockwell and John Prentiss. In 1874, the town appropriated $1,000 to replace that structure; the present bridge was presumably built soon afterward. It remained in service on the Chester Turnpike until 1955.^[2] It is now open to foot traffic.