Precast concrete top center module/segment/section for bridge pier, with steel reinforcing bars and long steel bolts protruding to be imbedded in cast in place concrete connection between precast concrete tie-beam and top of the pier. This segment is shown in place in other photos. Portions of the sides of the module are corrugated to provide resistance to sliding/shear relative to the modules at its side. In the background are portions of two precast concrete modules from which the piers are constructed. Woodrow Wilson Bridge replacement, Potomac River between Virginia and Maryland, Capitol Beltway, I-95/I-495. November 2006.