Re: Another Bridge Question - Steel Deck at milepost 416

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stanames
Would you happen to know is this is the longest plate girder span on the NG?

There is another multiple span one near Arboles whose spans may be of a similar length.

For that particular type of bridge that appears to be the longest between Chama and Durango.
There were other bridges that had longer spans, but not with deck plate girder.

Bridge 377A, over Amargo Creek, had a 109’ iron through span. In 1928 it was replaced with a 48’ through plate girder and 56’ pile trestle

Bridge 386A, over the Navajo River, had a 64’ pony truss and 86’ Howe truss replaced in 1926 with a second hand 146’ through truss span.

Bridge 387A, over the San Juan River, during 1926 bridge replacement had 185’ foot steel span and 64’ deck plate girder installed.

Bridge 404A, over the Piedra River, a 129’ 6” steel span installed during 1916, and came from the 3rd Division.

Pine River bridge, during 1915 bridge replacement, had a 129’ 6” iron span, from 3rd Division installed, and a 64 foot through girder installed. Bridge also consisted of a 64’ Howe truss and 22’ trestle, but those were removed and filled during 1926.

As mentioned other bridges had longer spans, such as Animas River, and the bridge to the San Juan Smelter, but none were deck plate girders.

Jimmy