New Hampshire’s Covered Bridges

New Hampshire holds 54 of the remaining 750 covered bridges in the United States.  It’s hard to believe at one point there were in excess of 10,000.  Recently I made the drive to explore three of them.

swift river covered bridge newengland_The Swift River bridge was built in 1869.  The road connecting the bridge to the main street has been cut off, ending it’s purpose for vehicles and equipment to cross the river.  A picnic table has been placed on one end for visitors to relax and enjoy the view.

swift river covered bridge newengland 2The town of Conway holds the Swift and Saco bridges, which are so close they can each be walked to in five minutes.  Albany has the Albany bridge, and it is only six miles west of Conway on the Kancamangus scenic highway.

swift river covered bridge newengland 3The arched trusses you see on each side of the floor are comprised of 16 boards laminated and bolted together.  This was very common among the bridges I visited.

albany covered bridge newengland 3These bridges were constructed in the mid 1800’s.  The main carpentry advancement of the time was mortis and tenon, where chisels and hand drills bore holes through the timbers to fit the tenons of posts.  Once they were joined, carpenters would shave and insert pegs to secure the joint.

covered bridge (18 of 40)Throughout the years and wear the wood has shrunk, split and come loose.  All have been retrofitted within the last 50 years you see a mixture of mortise and tenon, and bolts and nuts where you can see the intertwining of carpentry advancement.

saco covered bridge newengland 3The Saco River bridge is within walking distance of the Swift River bridge.  But unlike the Swift River bridge this one is still in use by the town.  Vehicles must take turns coming and going as the bridge’s width will not accompany more than one at a time.

saco covered bridge newenglandAll these bridges were easily visited in one afternoon.  If you are a history nut such as myself it is definitely worth the drive.  The Kancamangus highway to get here is 32 miles of pure stress releasing wilderness beauty.

saco covered bridge newengland 1This was the only bridge that I saw which had a walkway for pedestrians separated from the road.

albany covered bridge newengland 2The Albany bridge was built in 1858 and rehabbed in 1970.  This bridge is in a state park and is still in use by visitors driving through.

albany covered bridge newengland 3-2The bridges I visited all used the Paddleford truss system.  A series of interlocking counter-braces that significantly strengthen long span bridges.  Named after the creator, Peter Paddleford (1785-1859).

covered bridge (12 of 40)

2 comments

Will June 4, 2016 - 10:20 am

Those bolts are not an introduction of advanced carpentry to an inferior system – (Paddleford Trusses and most all joined timber trusses were and are highly advanced carpentry) They are simply poorly designed repairs limited by someone sticking to what they knew, rather than looking to the original system, something that they irrationally saw as inferior and outdated.

Reply
focusedtraveler June 4, 2016 - 11:28 am

Thank you for that information Will. Yes, the original design has and still is an excellent use. It’d be interesting to know who repaired the bridge and what rules of engagement they had to go off of on the repairs. Are the repairs dictated by the townships or can the carpenter have the decision making authority? Cheers Will.

Reply

Leave a Comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.