Seahive Phase II

Bridge scour — the erosion of sediment around bridge foundations — is the leading cause of bridge failure in the United States. This project investigates SEAHIVE®, a modular system of concrete perforated hexagonal prisms designed to reduce scour while supporting aquatic habitat. Phase II focused on producing internally prestressed units using glass fiber reinforced polymer tendons, eliminating steel to prevent corrosion. Units of up to 24 feet in length were manufactured and tested in compression and bending. The system has potential applications beyond bridge protection, including shoreline and port facility protection.