Chapter 8 › V.A.4.iv–v Closed Basin Flooding; Gravel Roads

What about roads in closed basins that stay flooded, and gravel roads?

FEMA term

Closed basin flooding; gravel roads

Short answer

For closed basins where water can’t drain, FEMA may fund raising the grade of critical routes facing long-term loss of use. Gravel loss must be proven, not assumed, and only the damaged sections are eligible.

What FEMA requires

Closed basins: only routes critical to restoring traffic service, judged by functional class, essential services and detour availability. A permanent reroute may be funded if more cost-effective.
Raising chronic low spots is not the intent of the program.
Gravel: show actual loss with work logs and invoices for gravel placed in that section within 12 months before the incident, and photos of displaced gravel.
Washboarding (corrugation) is ineligible; rutting is ineligible except from emergency vehicles or a required single-access reopening.

Documentation

Closed basin: evidence the basin hit historic highs during the incident period, water level and rainfall records, and projected closure duration. Gravel: logs, invoices and photos. Source: PAPPG Tables 25–27.

Watch out · Govstar practitioner advice

Keep gravel placement logs by road section every year. They are the only reliable proof of gravel loss after a flood.

Govstar summarizes FEMA’s Public Assistance Program and Policy Guide in plain language and links to the official text. Govstar is independent and not affiliated with FEMA. This is general guidance, not legal advice.