Structural Repair of Double T Parking Garage in Milwaukee, WI

Fortress Anchors and Carbon Fiber Reinforcement Restore Medical Clinic Garage

The Challenge

The parking garage at Tosa Center Medical Clinic in Milwaukee was experiencing a common but serious issue found in many Double T concrete structures—weld failure at the 3.5" JVI flanges. A total of 225 weld locations across 10-foot spans had failed, compromising the structural reliability of the garage and posing a safety risk for vehicles and pedestrians.

The Solution

To restore structural performance and prevent future movement, Fortress Stabilization Systems provided a targeted, durable solution:

• Fortress Double T “Horseshoe” Anchors:
  Each failed weld was repaired using Fortress's proprietary Double T anchors, designed specifically for this type of structural connection. These anchors were installed in approximately 10 minutes per location and successfully tested to confirm zero movement after installation, ensuring long-term performance.

• Parking Deck Reinforcement:
  In addition to anchoring the flanges, the parking deck was repaired using two rows of extended-length Carbon Fiber/Kevlar® ReGrid™ (functioning as oversized Crack Stitches) to reinforce areas with surface damage and cracking.

• Deck Coating and Seam Repair:
  After the structural reinforcement was complete, the deck received a new coating system and seam repairs to restore surface durability and protect against future wear and moisture infiltration.

The Outcome

The garage is now fully stabilized, with 225 critical connection points reinforced using high-strength, non-corrosive Double T anchors. Combined with carbon fiber deck reinforcement and new protective coatings, the structure is better equipped to withstand future stress, traffic loads, and environmental exposure.

Why It Matters

Weld failures in Double T parking structures are more common than many property owners realize. Without a permanent fix, these issues can lead to costly damage or even closure. Fortress Double T anchors and ReGrid reinforcement offer fast, non-invasive solutions that restore structural integrity without extended downtime.

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