Structural Design of Closure Structures for Local Flood Protection Projects

Technical Engineering and Design Guides, as adapted from the U.S. Army Corps of Engineers, No. 21

This guide provides a framework for the structural design of closure structures for openings in levees and floodwalls of inland local flood protection projects.

Topics include:

• design requirements for aluminum and steel stoplog closure structures;
• design requirements for steel swing, miter, trolley, and rolle gate closure structures;
• design and selection of closure types, focusing on structural analyses, appurtenant components, and corrosion protection;
• design provisions for operational, functional, maintenance, aesthetics, safety, security, construction, and economic considerations;
• design process and coordination;
• facilities requiring closures;
• closure structure types;
• stress, loading, and design analysis criteria;
• gate operating equipment;
• seal assemblies;
• embedded metals; and
• corrosion protection criteria.