Cooperating Technical Partnership (CTP)

LA DOTD Cooperating Technical Partnership (CTP)
On March 11, 2015, the Louisiana Department of Transportation and Development (LA DOTD) signed a partnership agreement with FEMA Region VI to become a Cooperating Technical Partner (CTP) in FEMA’s Risk MAP Program. Since becoming a CTP, LA DOTD has been diligently planning and working toward the release of updated flood risk information for Louisiana. The hope is that in the future, other stakeholders will become involved in the program to make good and efficient use of the data for floodplain management decisions and mitigation actions. This program is managed by Susan Veillon susan.veillon@la.gov under the State NFIP Coordinator, Cindy O’Neal.

Program Vision
Influence project selection statewide for all flood risk identification projects
Work as a partner with FEMA and all mapping teams
Update engineering analysis on 35% of streams in Louisiana by 2023

Completed Projects -

Amite Watershed Discovery

The Amite study area intersects both Louisiana and Mississippi and covers many communities including 19 municipalities (Baker, Baton Rouge, Central, Centreville, Clinton, Denham Springs, French Settlement, Gloster, Jackson, Killian, Liberty, Livingston, Norwood, Port Vincent, Slaughter, St. Gabriel, Walker, Wilson, and Zachary) and 10 counties/parishes (Amite, Ascension, East Baton Rouge, East Feliciana, Franklin, Iberville, Livingston, St. Helena, and Wilkinson).The first FEMA flood maps for the Amite Watershed were released over 40 years ago. Since then, there have been several updates to these maps for each of the communities within Amite Watershed. The most recent update was in 2013. The watershed begins in the southern part of Mississippi and travels south through a series of streams and rivers into Lake Maurepas in Louisiana. In August of 2016, the watershed experienced catastrophic flooding when over 20 inches of rain fell in the area. 

Amite Flood Risk Report​


Bayou Cocodrie, Black, and Lower Red Watershed Discovery

The study area covers 7 parishes (Avoyelles, Catahoula, Concordia, LaSalle, Pointe Coupee, Rapides, and Tensas) and 9 communities (Alexandria, Clayton, Ferriday, Jonesville, Mansura, Marksville, Pineville, Ridgecrest, and Vidalia). The first FEMA maps for the study area were released over 40 years ago. Since then, there have been a few updates to these maps. The most recent update was in 2005. The Bayou Cocodrie watershed is to the west of the Mississippi River and the Mississippi-Louisiana boarder. The Black watershed is sandwiched between the Lower Red and Bayou Cocodrie.​

Bayou Cocodrie, Black, and Lower Red Flood Risk Report​​


Bayou Sara Thompson Watershed Discovery

The Bayou Sara‐Thompson study area intersects both Louisiana and Mississippi and covers several communities including eight municipalities (Baker, Baton Rouge, Jackson, Norwood, Wilson, St. Francisville, Woodville, and Zachary) and four counties/parishes (East Baton Rouge, East Feliciana, West Feliciana, and Wilkinson).  The first FEMA flood hazard mapping for the Bayou Sara‐Thompson Watershed was released over 40 years ago. Since that time, several communities in the watershed have received updating mapping, the most recent being in 2012.  

Bayou Sara Thompson Flood Risk Report ​


Bayou Teche Watershed Discovery

The Bayou Teche study area is wholly within the State of Louisiana and covers eight Parishes including Allen, Avoyelles, Evangeline, Iberia, Rapides, St. Landry, St. Martin, and St. Mary including thirty four communities within those Parishes that intersects this watershed. Also it should be noted that the Chitimacha Tribe of Louisiana and Tunica-Biloxi Indians of Louisiana have jurisdiction of lands within the Bayou Teche Watershed. The first FEMA flood hazard mapping for the Bayou Teche Watershed was released over 40 years ago. Since that time, several communities in the watershed have received updating mapping, the most recent being in 2017.​​

Bayou Teche Flood Risk Report​


Liberty Bayou Tchefuncte Watershed Discovery

The Liberty Bayou‐Tchefuncta Watershed is in  Louisiaana and six municipalities (Abita Springs,  Covington, Folsom, Madisonville, Mandeville,  and Slidell) and three parishes (St. Tammany,  Tangipahoa, and Washington). The first  mapping for the Liberty Bayou‐Tchefuncta Watershed was released almost 50 years ago.  Since that time, several communites in the  watershed have received updated mapping, the most recent being in 2010. The Liberty Bayou‐ Tchefuncta Watershed was affected by the March 2016 flood. During the storm, rainfall ranged from 2  inches to 19 inches in the Tchefuncta River basin. Approximately 38 percent of the watershed falls  within a Special Flood Hazard Area (SFHA). Almost 20 percent of the regulatory SFHA in the watershed is  Zone AE with the remaining SFHA falling into Zones A and VE. ​​​

Liberty Bayou Tchefuncta Flood Risk Report


Mermentau Headwaters Watershed Discovery

The Mermentau Headwaters study area is in Louisiana and covers many communities including 18 municipalities (Basile, Chataignier, Church Point, Crowley, Elton, Estherwood, Eunice, Iota, Jennings, Mamou, Oakdale, Oberlin, Opelousas, Pine Prairie, Rayne, Turkey Creek, and Ville Platte) and 5 parishes (Acadia, Allen, Evangeline, Jefferson Davis, and St. Landry). The first FEMA flood maps for the Mermentau Headwaters were released over 40 years ago. Since then, there have been several updates to these maps fo each of the communities within Mermentau Headwaters Watershed. The most recent update was in 2011. The watershed begins in the northern part of Allen and Evangeline and travels south into Acadia through a series of bayous and streams.​

Mermentau Headwaters Flood Risk Report​​​


Tickfaw Watershed Discovery​

The Tickfaw study area intersects both Louisiana and Mississippi and covers several communities including twelve municipalities (Albany, Amite City, Greensburg, Hammond, Independence, Killian, Livingston, Montpelier, Ponchatoula, Roseland, Springfield, and Tickfaw) and four counties/parishes (Amite, Livingston, St. Helena, and Tangipahoa). The first FEMA flood hazard mapping for the watershed was released over 40 years ago. Since that time, the communities have received updated mapping, the most recent being in 2013. Catastrophic flooding occurred in August 2016, when over 20 inches of rain fell when the rivers and streams reached record levels.​

Tickfaw Flood Risk Report​


LaSalle Parish Phase 2 Engineering Update

Click here for FEMA's Map Service Center to view all Preliminary Products available.


West Feliciana Parish Phase 2 Engineering Update

Click here​ for FEMA's Map Service Center to view all Preliminary Products available.

Ongoing Projects -

Allen Parish Phase 2 Engineering Updateg Update


Planned Projects -

Tensas Watershed Discovery

Upper Calcasieu Watershed Discovery

Lower Red Lake Iatt Watershed Discovery


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