ASDSO Dam Safety Toolbox

Dam Safety Warning Signs Best Practices (FEMA P-2188)

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Federal Emergency Management Agency, 2021

The Federal Emergency Management Agency’s (FEMA) Dam Safety Warning Signs Best Practices is a compilation of existing leading practices from industry leaders including the American International Standards Institute (ANSI) Association of State Dam Safety (ASDSO), Bureau of Reclamation (Reclamation), Canadian Dam Association (CDA), Federal Energy Regulatory Commission (FERC), Federal Highway Administration (FHA), United States Army Corps of Engineers (USACE), United States Coast Guard (USCG), United States Society on Dams (USSD) and more.

These best practices have been developed to address the need to accurately and consistently warn against the hazardous conditions resulting from dams and their operations nationally.

Overall, the Dam Warning Signs Best Practices aims to accomplish the following:

  • Provide guidance on proven and practiced dam warning sign design, messaging, and monitoring best practices.
  • Promote consistent and recognizable safety signage nationally.
  • Reduce the risk of injury or death resulting from dam operations.

Document Download:

2021 (current)

Errata/Special Notes:


Revision ID: 6725
Revision Date: 03/22/2023