Surveying overall impacts and locating damage are not project costs, but can be claimed as management costs. Detailed inspections to determine the extent of damage and how to repair it are part of the project.
Inspection reports, the length or area inspected versus damaged, and time and cost records.
Scope system-wide inspections (sewer, storm drains) carefully. FEMA pays only the damaged share, so a broad inspection can cost you more than it recovers.