You can find the print files for these bridges on my thingiverse account
( HERE ).
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Here is some info on some 6 ft high plate girder bridges of different lengths that you can print along with the links to the print files. These are all double track and are in N scale lengths of 32.5 ft. (2.5”), 40 ft. (3”), 50 ft. (3.75”) & 80 ft. (6”). The 80 ft. and maybe the 50 ft. might not be found in real life unless there was an additional support midway under the bridge?

One 6 foot high span was used above by the tunnel portal and some others of a different length were used at the top of the two supporting towers. More pictures of those
( HERE )). You can also find print file links for the Warren Truss roadway bridge
( HERE ). The following will provide more info on the different spans.

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At this time there are some abutments that a straight with ‘winged end’s the sweep in the same direction. If you need to change that angle one way or the other you could probably cut them off…..file them to a different angle….and glue them back together.

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You can find the print files for these bridges on my thingiverse account
( HERE ).
You can find a couple hundred other items that you can print on my website
( HERE ).
Sumner