วันพฤหัสบดีที่ 29 ธันวาคม พ.ศ. 2554

Concord covered bridge.

Concord Bridge is 131.7 feet long and 16 feet wide. It was built in 1872. This bridge is open to traffic. It is over Nickajack Creek Fast and high traffic makes a visit to this bridge dangerous. This bridge originally consisted of only two spans, each a queen-post truss with steel (or iron) tension rods. The center abutment, as can be seen in the photo of the steel beams above, seems to have been widened from a previous bridge using the same pier. In the 1950's steel beams were added to support the bridge and additional concrete piers were added. There is also a fourth all-steel support which can be seen in the downstream view.

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