North Carolina State University: What flood-study thresholds and fees does Wake County publish?

DIRECT ANSWER

Source guidance recorded on 2026-10-15. Confirm the applicable policy year, cohort and property jurisdiction before relying on time-sensitive facts.

A minor study covers flood-hazard-soil development with 25 or more but less than 100 acres of drainage and costs $500 per crossing/encroachment; a major study covers 100+ acres or a FEMA-mapped area and costs $1,000 per crossing/encroachment.