COUNTY BRIDGE
Hancock and Greenfield, New Hampshire

bridge

Location:
One mile east of U.S. Route 202, three and one-half miles west of Greenfield on the Hancock-Greenfield (Forest) Road. It spans the Contoocook River between Hancock and Greenfield.
Style of Bridge:
Pratt truss (modified)
Year of Construction:
1937
Original Cost:
Unknown.
Structural Characteristics:
The bridge is 86'6" long with a clear span of 81'6". It has an overall width of 27'1" and a roadway width of 20'0" with a maximum vertical clearance of 13'9". It is posted for eight tons.
Maintained By:
New Hampshire Department of Transportation
World Guide Number:
29-06-02
New Hampshire Number:
8

bridge             bridge

Historical Remarks:
In 1852, a Long truss covered bridge was built on this site by Charles Gray of Hancock. In March 1936, a disastrous flood damaged the bridge beyond repair. The current bridge was designed by Henry Pratt of Antrim and constructed as a Federal Emergency Relief Administration project by the Hagan-Thibodeau Construction Company of Wolfeboro, New Hampshire. When it was rebuilt in 1937, the structure was set on concrete abutments and was reinforced using steel TECO timber connectors, bolts, and gusset plates. The TECO connectors gave the timber joints added strength and allowed the bridge to be rated at a twenty ton carrying capacity. Three tons of steel were used in the construction of the bridge. Asphalt shingles were replaced with wooden ones in September of 1981 at a cost of $77,000. The County Bridge is listed on the National Register of Historic Places.

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Table of Contents

New Hampshire Bridges

New Hampshire Covered Bridges
Compiled and edited by
Richard G. Marshall
Chief System Planning
New Hampshire Department of Transportation
Color photographs by Arthur F. Rounds
1994