Ramp king with folding tailgate

Ramp mechanism

Reinforced concrete bridge decking and method of making same

Reinforced concrete structures

Reinforced elastomer products

Reinforced elastomeric bearing

Reinforcement rib and overhead structure incorporating the same

Removable bridge for crossing streams or small rivers

Repair and reinforcement method for preexisting structures...

Resilient bearings

Resilient supporting device, more particularly for...

Retaining arrangement for an inflatable member in a dock...

Reusable composite bridge structure

Road expansion joint

Road joint seal and end dam construction

Road spillway

Roadway structure for road bridges

Rocker bearing for bridges or similar structures

Rolling track for roller bascule bridges