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Blair Bridge
Blair Rd, Campton,
NH 3223
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USA
Latitude & Longitude:
43° 48' 36.9396",
-71° 40' 0.156"
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New Hampshire State
Historical Marker
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Hiram W. Merrill (1822-1898) of Plymouth, N.H., built this bridge in 1870's to replace a span of 1829 that had been burned by an arsonist.The bridge employs a truss design patented by Col.Stephen Harriman Long (1784-1864) of Hopkinton,N.H. It is New Hampshire's only surviving example of Long's patent to retain wedges at the lower chords by which the trusses were prestressed during construction,stiffening the bridge against the weight of traffic. Covered bridge expert Miltion S. Graton(1908-1994) restored the structure in 1977.
Last updated: 9/21/2011 11:05 |
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See all Historic New Hampshire Bridges.
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Image Gallery
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Blair Bridge Historical Marker Location Map, Campton, New Hampshire
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