Rapid Response Techniques for Disasters Near Roadway Work Zones: Temporary Low-Water Crossings

Work zone traffic management requires consideration of both normal conditions and potential emergencies. When a main road or bridge is under construction, communities are often dependent on minor roads that are vulnerable to adverse events such as floods, landslides, or forest fires. If an adverse event does occur, in some cases construction can be halted and the main route put back into service to help first responders and the public address the emergency. In other situations, temporary facilities must be established to provide access to the stricken area, support evacuations, or allow traffic to bypass damaged facilities. Waterway crossings are often required on these temporary routes. This brochure provides information on installing low-water crossings (LWCs) to provide temporary access or emergency access to areas that would otherwise be impacted by construction.