01 1 EA 42LF – Run of 87” x 63” Arched Aluminum 10-gauge 3 x 1 Corrugated Pipe with Welded Flanged Joints (Flange Joints to have 53EA – 7/8” Holes Not Slotted holes larger than 7/8”) Pre-Fit at the plant to insure Flange Bolt Holes line up without Drilling, 9.08’ Tall x 18’ Long x 0.175” Thick Aluminum Headwall fully welded to pipe on 90-degree skew with 2EA Root Welds & 2EA – Finish Welds with 2EA – Various Height Wing Walls 4.5’ Long on the Inlet End, 9.08’ Tall x 22.5’ Long x 0.175” Thick Aluminum Headwall fully welded to pipe on 90-degree skew with 2EA Root Welds & 2EA – Finish Welds with 1EA – Various Height Wing Wall 4.5’ Long on the Outlet End. Please Note: Max Tie Back Rod length to be no longer Then 12.5’. **INCLUDES 1 ROLL TENSAR TX GEOGRID OR EQUIVALENT**