This Engineering and Construction Bulletin (ECB) establishes interim policy and guidance for the design of fiber reinforced polymer hydraulic composite structures (HCS). The purpose of this ECB is to ensure quality, consistency, and standardization while USACE personnel gain knowledge and experience with HCS and more explicit guidance is developed.

This ECB requires the use of Unified Facilities Criteria (UFC) for fire protection and life safety for Civil Works design and construction projects, and inspection, testing, and maintenance.