Blueprints 3 Grace Memorial Bridge - Old Cooper River Bridge, Charleston South Carolina Tweet TRESTLE DETAILS-BENTS 3E & 4E. SHEET NO. 19A TRESTLE DETAILS AT BENT 36D, 37D, AND PIER 5. SHEET NO. 20 TRESTLE DETAILS BENTS 17, 18, 19, 20, & 21E, SHEET NO. 21 TRESTLE DETAILS-SPAN 22W, SHEET NO. 22 TRESTLE DETAILS-SPAN 18W, SHEET NO. 23 TRESTLE DETAILS BENTS 10W & 11W, SHEET NO. 24