How much floodwater can one acre of wetland absorb?

One acre of wetland can absorb and store 1–1.5 million gallons of floodwater (approximately 3–4.5 acre-feet), releasing it gradually to reduce peak flows downstream.

Are wetlands more cost-effective than concrete levees for flood control?

Yes. Wetland restoration typically costs 2–5 times less per unit of flood protection than concrete levees or dams, with lower maintenance costs and additional co-benefits like carbon sequestration and habitat provision.