A Guide to Assessing Green Infrastructure Costs and Benefits for Flood Reduction

Communities can use this guide to assess the potential costs and benefits of green infrastructure to reduce flooding. The framework can be adapted to inform planning-scale assessments and spark discussion about green infrastructure options to mitigate flooding and provide other watershed benefits.

Following a step-by-step, watershed-based approach, the document guides users through documenting the costs of flooding, projecting increased flooding and associated costs under future land use and climate conditions, and calculating benefits and costs of reducing flooding with green infrastructure over the long term.