Steel truss decking
For many years, glued laminated decking has been a preferred choice for existing steel truss bridges for both vehicular and pedestrian applications. And for good reasons...Take a look at dead loads. Timber weighs in at 50 PCF while concrete tips the scales at 150 PCF. That's a factor of 3 whereas the thickness required doesn't come near that factor increase.
Glued laminated timber also benefits from the quick assembly time it provides thanks to extensive prefabrication of the material at the plant. Panels can be manufactured continuous over multiple floor beams increasing the structural design while saving on installation times. In most cases, a deck for a truss can be set within two days depending upon site characteristics. And of course, treated decking is resistant to road salts, which probably was a main contributor to the need for a bridge repair.
Feel free to contact us at 607.562.8110 to learn more about decking for trussed bridge structures.