The span length given for this bridge is a rough estimate. Whatever the exact span length is, one thing is clear: this is a very long-span example of a pin-connected Pratt through truss. Typically spans of this length would be something more complicated that a regular Pratt, such as a Whipple or Parker truss. This bridge crosses at a fairly high height over the water, and at the eastern end of the bridge a series of steel stringer approach spans brought the bridge roadway back to ground level.
This bridge was reportedly abandoned in the 1950s. Nothing has been done with the bridge since then. The deck is long-gone, although deck stringers remain for the approach spans. Some of the approach spans are in imminent danger of collapse, and indeed have already partially collapsed with visible sagging. The reason for this is obvious. The steel bent closest to the main span that supports the approach spans has had the concrete foundations they rest on washed away. One of the columns was during the site visible observed to be completely washed out and essentially hanging off the bridge, and others were partially washed out with the foundation tipping over.
For a bridge with obvious historic significance due to its pin-connected design and span length, the neglect is unacceptable. The bridge is actually located in a National Recreation Area, which is managed by the National Park Service. The National Park Service needs to step up and restore this bridge for pedestrian use which would make it an attraction for the area.
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