Z Scale › 4028 Wood Truss Rod Bridge (55' Span) Image 1 of 1 4028 Wood Truss Rod Bridge (55' Span) $29.00 Footprint: 2-7/8" to 3-1/4" between supports. Purchase Added! Footprint: 2-7/8" to 3-1/4" between supports. Reviews Reviewer Name Review Date Star Rating Description Posted on Etsy Product Show More