Arrigoni Bridge, Connecticut
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Abhe & Svoboda, Inc. abrasive blasted and painted approximately 1.1 million square feet of the bridge’s steel girder and overhead truss structure. The structural steel was abrasive blasted to SSPC-SP 10 using a recyclable steel grit abrasive, within a SSPC Class 1A containment. The coatings used were Carboline Organic Zinc-Rich Epoxy primer, Epoxy Mastic intermediate, and Urethane topcoat. Temperature and humidity control procedures were required on this project during the painting operations. The containments were heated to appropriate temperatures during winter months. Additional rehabilitation work included concrete repairs, epoxy injection, structural steel repair, bridge deck joint replacement, and electrical systems renovation. All work, including abrasive blasting and painting operations, was performed while maintaining three lanes of traffic on the bridge. In addition to the restoration work, Abhe & Svoboda, Inc. also performed traffic control. The average daily traffic across the bridge was 32,860 vehicles per day.
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