South Line Freight Improvement Retaining Wall for SANDAG

Unique Features:

The result of a VECP submittal by Faltiron Construction the Stresswall option was selected due to speed of erection and cost savings due to elimination of shoring that would have been required for any other wall option at that location. Typical shots show the “slot cut” excavation method wherein the existing emabankment was substantially left in place instead of removal which would have been required for other wall types. By cutting 4″ wide slots into the embankment at 15′ centers the precast counterforts could be placed w/o total wall excavation or any site shoring.

Slot Cut for Counterfort Base

Wall in foreground w/ base
held by barrier clamp

S. Wall Counterfort Base Placed and Filled in Slot Cuts

Aligning and Leveling Counterfort Base in Trench

S, Abut. Wall Corner Counterfort

Initial Hand Torque of Post Tension Bars

Applying Lock Off Loads to P.T. Bars

Installing Upper Counterfort Base

Placing Threadbars in Counterfort Bases

Setting Counterfort Face and Fill Placed