URETEK ICR A portion of the Cape Hatteras Ferry Terminal’s seawall was in serious need of repair. The seawall needed a solution to prevent further damage and ensure safety to the area. Seawall stabilization THE CUSTOMER Hatteras, North Carolina is home to the iconic Cape Hatteras Lighthouse , boasting over 50 miles of beautiful shoreline. While the year-round population is about 3,000-4,000 people, this number spikes in the summer months to over 50,000+ visitors per week. The Coast Guard Station at Hatteras Inlet is also located on the southern end of the island. The nearby ferry terminal for this wonderful island is both necessary, and enjoyable for residents and visitors alike. Customer North Carolina Department of Transportation Location Hatteras, North Carolina Type Infrastructure Interesting Fact Hatteras Island is part of the Cape Hatteras National Seashore, over half of the island is undeveloped, natural terrain. Ferry Bulkhead Details THE CHALLENGE When the original seawall was constructed, the concrete piles were installed using water jetting, a process of using high pressure water to create cavities to install concrete piles into the ground to support structures above. Once the row of piles were in place, concrete panels were set and sealed in between the piles. The seal between the precast panels and the piles at the ferry terminal were causing soil to pull through the wall, and into the ocean. As a result, sinkholes began to form behind the seawall near the Coast Guard Station Hatteras Inlet. The NCDOT contacted URETEK for an environmentally friendly, non-invasive solution to prevent further loss of soil behind the seawall.