Precast Concrete Association of Virginia - sided bridges and culverts
Three‑sided, flat‑decked rectilinear precast units placed segmentally onto a concrete foundation can be used to form a bridge. The units are tied together by grouted keyways preformed into the foundation and between units, or mechanically by lateral ties of post-tensioning strands or rods. Most three‑sided bridge systems offer clear span units from 6 to 42 feet coupled with vertical clearances from 2 to 14 feet. This flexibility, coupled with the ability to cast skew angles up to 45 degrees, transitional and radial shapes, allows for a wide range of opening configurations. All of this ‑ and more ‑ allows for a completely precast project that is quick and efficient!