Featured Project

Pinellas Bayway Bridge Replacement in St. Petersburg Beach, FL

Pinellas Bayway Bridge replacement construction began in February 2012. Completion is scheduled for the fall of 2014. It will connect Isla del Sol and St. Pete Beach using a four-lane, high level fixed span 65 foot high bridge. This will allow boats to pass underneath without impacting motorists and will improve traffic flow by reducing congestion.

As the Concrete Specialty Engineer, Mr. Roush calculated and wrote the mass concrete plan and designed the cooling pipe system for the bridge substructure in order to remove the heat as it builds up during the curing period, and to reduce the scheduling time for form removal.

Pictures show first how the cooling pipe system is installed within the reinforcing steel cage.  This system is then lifted as a unit into the formwork before the concrete placement.  The last 2 pictures show the system after placement in the reinforcing steel cage for one of the footings of this bridge. At this point, Mr. Roush does an inspection of the cooling system and the temperature monitoring devices for compliance with his mass concrete plan.

As the construction progresses, he monitors the temperature reports and recommends necessary steps to control temperature extremes that may cause thermal cracking, thermal stress, and other negative factors within the concrete.  His ongoing actions insure the integrity of the concrete for this infrastructure.