Flood Related Documents

Multi-Hazards Mitigation Plan/Floodplain Management Plan

The current Floodplain Management Plan has been consolidated into the Louisville Metro Hazard Mitigation Plan. The Hazard Mitigation Plan is a 5-year plan developed to meet the requirements of the Disaster Mitigation Act of 2000 and the Community Rating System. The plan covers 13 hazards likely to affect the Louisville Metro area: flood, dam/levee failure, drought, earthquake, extreme heat, hail, hazardous materials, karst/sinkholes, landslide, severe storms, severe winter storms, tornadoes, and wildfire. 

The current Louisville Metro Multi-Hazards Plan can be found below:

2023 Louisville Metro Hazard Mitigation Plan

Watershed Master Plan

The Watershed Master Plan was developed for Louisville Metro by MSD. MSD assumed responsibility of the community’s public stormwater system, along with the flood protection system, in 1987. The basis of this WMP was MSD’s original Watershed Master Plan, which was created in 1988 as part of the Stormwater Drainage Master Plan. The purpose of this plan is to help effectively manage present and future regional stormwater drainage in Louisville Metro.

Watershed Master Plan

Watershed Master Plan Maps

Map Index

HS-1 Hydric Soils Open Space Map

Middle Fork Beargrass Creek Watershed

Middle Fork Beargrass Creek Aerial

Middle Fork Beargrass Creek Drainage

Middle Fork Beargrass Creek Soils

Middle Fork Beargrass Creek Land Use

Middle Fork Beargrass Creek Floodplain

Muddy Fork Beargrass Creek Watershed

Muddy Fork Beargrass Creek Aerial

Muddy Fork Beargrass Creek Drainage

Muddy Fork Beargrass Creek Soils

Muddy Fork Beargrass Creek Land Use

Muddy Fork Beargrass Creek Floodplain

South Fork Beargrass Creek Watershed

South Fork Beargrass Creek Aerial

South Fork Beargrass Creek Drainage

South Fork Beargrass Creek Soils

South Fork Beargrass Creek Land Use

South Fork Beargrass Creek Floodplain

Cedar Creek Watershed

Cedar Creek Aerial

Cedar Creek Drainage

Cedar Creek Soils

Cedar Creek Land Use

Cedar Creek Floodplain

Floyds Fork Watershed

Floyds Fork North Aerial

Floyds Fork South Aerial

Floyds Fork North Drainage

Floyds Fork South Drainage

Floyds Fork North Soils

Floyds Fork South Soils

Floyds Fork North Land Use

Floyds Fork South Land Use

Floyds Fork North Floodplain

Floyds Fork South Floodplain

Goose Creek Watershed

Goose Creek Aerial

Goose Creek Drainage

Goose Creek Soils

Goose Creek Land Use

Goose Creek Floodplain

Harrods Creek Watershed

Harrods Creek Aerial

Harrods Creek Drainage

Harrods Creek Soils

Harrods Creek Land Use

Harrods Creek Floodplain

Mill Creek Watershed

Mill Creek Aerial

Mill Creek Drainage

Mill Creek Soils

Mill Creek Land Use

Mill Creek Floodplain

Ohio River/City Watershed

Ohio River/City East Aerial

Ohio River/City West Aerial

Ohio River/City East Drainage

Ohio River/City West Drainage

Ohio River/City East Soils

Ohio River/City West Soils

Ohio River/City East Land Use

Ohio River/City West Land Use

Ohio River/City East Floodplain

Ohio River/City West Floodplain

Pennsylvania Run Watershed

Pennsylvania Run Aerial

Pennsylvania Run Drainage

Pennsylvania Run Soils

Pennsylvania Run Land Use

Pennsylvania Run Floodplain

Pond Creek Watershed

Pond Creek East Aerial

Pond Creek Central Aerial

Pond Creek West Aerial

Pond Creek East Drainage

Pond Creek Central Drainage

Pond Creek West Drainage

Pond Creek East Soils

Pond Creek Central Soils

Pond Creek West Soils

Pond Creek East Land Use

Pond Creek Central Land Use

Pond Creek West Land Use

Pond Creek East Floodplain

Pond Creek Central Floodplain

Pond Creek West Floodplain

Floodplain Management Ordinance

Our nation’s floodplains are regulated by federal, state, and local regulations. The Commonwealth of Kentucky and Louisville Metro regulates construction and development in floodplains so that buildings will be protected from flood damage. The regulations require a floodplain permit before you start any repair, renovation, development, improvement, or construction. Development means any changes to the property, including filling, regarding, and excavating. Also, our floodplain ordinance requires houses substantially damaged by fire, flood, or any other cause must be elevated one foot above the flood level.

The local floodplain ordinance includes strict requirements for both new construction and development in the floodplain. Therefore, you will need a floodplain permit before starting construction. All development in the floodplain requires two floodplain permits: one from the Kentucky Division of Water (DOW), and a local permit from MSD. 

Example Floodplain Regulations:

  • Construction or filling cannot reduce the ‘storage capacity” for floodwaters in a floodplain.
  • All new roads must be elevated at or above the floodplain elevation.
  • The first floor a new residential structure must be at two feet above the floodplain elevation, other structures must be at least one foot above the floodplain elevation.
  • Changes, improvements, and additions must meet the substantial improvement requirement for Pre-FIRM structures.

2022 Louisville Metro Floodplain Ordinance

For more information on how to apply for a permit to develop in a floodplain, visit permitting or contact Lori Rafferty.

FEMA Programmatic Agreements

FEMA Historic Preservation Programmatic Agreement