Opening WS of Golden Gate bridge being built in 1934. The V.O. is explaining that the horizontal cross struts above the road way level will help the tower legs act as a unit in resisting lateral forces. CU of cable saddle being lifted to top of tower leg. V.O. explains, each saddle is a three piece steel casting. MCU of men working on the towers. V.O. explains, the saddles are mounted on rollers to allow movement, later they will be fixed into position. Placing the cable saddles in November of 1934, essentially complete the north tower. Cuts to WS of pier floating in the ocean, V.O. explains difficult under water constructions. Cuts to MLS of three partial towers still being constructed with cargo sailing through. As the tower progresses upward Calmar line ships continue their deliveries of fabricated steel work to Alameda. MCU of San Francisco tower. V.O. explains the pattern to electing the S.F. tower is the same as the building of the Marin tower. CU of tilted up view of a tower. MWS of wheel on wire being pulled on wire cable. V.O. explains the cable contractors links the south and north shore together with 80,000 miles of wire. CU of wire being made. MS of spinning carriages shuttling from anchorage to mid-span. CU of men working on wiring on the bridge.