Stormwater Management
Definition
Systems and practices that control rainwater runoff to prevent flooding, reduce pollution, and protect water quality. Traditional stormwater management uses pipes and detention basins; modern approaches include green infrastructure like rain gardens, bioswales, permeable pavement, and urban tree canopy that absorb rainwater where it falls rather than channeling it into sewers and streams.
Louisville Context
Louisville’s aging combined sewer system creates severe stormwater challenges. MSD has begun investing in green infrastructure—having installed over 250 green stormwater projects since 2009—but still relies heavily on expensive underground storage. Development regulations now require new construction to manage stormwater on-site, reducing burden on public systems.
Why It Matters
Poor stormwater management causes basement flooding, street flooding, and sewage overflows that contaminate waterways. The approach Louisville takes—expensive tunnels versus green infrastructure—affects your sewer rates, neighborhood flooding risk, and community benefits like parks and tree canopy.
Dave’s Proposal
Dave will create an Office of Green Infrastructure within Metro Government to coordinate stormwater management across MSD, Public Works, and Parks. His $1.025 billion budget includes funding to expand tree canopy and rain gardens that manage stormwater while cooling neighborhoods and improving quality of life.