I've made six 4-track bridges.
My kuids 2:210518:
2202, 2203, and 2204 are non-animated deck plate girder spans.
2205, 2206, and 2205 are non-animated thru plate girder spans.
1268 and 1270 are animated swing spans (normally open and close at the approach of a train).
Perhaps one of those will fit your scene.
Ben