City of Central Adopts CSRS Developed Off-Site Drainage Assessment Program

April 22, 2021

Developments , Press Release ,

At the April 13, 2021 council meeting, the City of Central unanimously approved a resolution authoring the implementation of the Off-Site Drainage Assessment program (ODA), which uses high-resolution 2-dimensional (2D) computer modeling to help identify potential drainage impacts from proposed developments within the City. This is a tremendous step in moving to a more robust and comprehensive assessment of potential drainage impacts from the proposed development. The ODA utilizes the best available data and technology to provide peace of mind to the residents of the City and to ensure that new developments will not increase their flood risk.

CSRS, Inc. developed the high-resolution, 2D computer models for the City as part of their first-ever Drainage Master Plan. This model, now adopted as the Effective Hydraulic Model (EHM), will be used to perform off-site drainage assessments for specific proposed developments based on their type, size, and/or location within the Conveyance Zone. The Conveyance Zone is defined as the area flooded more than 0.5 feet deep from the EHM during a 100-year, 24-hr storm event. An ODA will be required for proposed developments of more than five residential lots or any proposed commercial development within the Conveyance Zone.

The City of Central will utilize CSRS’ expertise and guidance on performing the ODA. Our modeling program is designed to help sustain new developments and safeguard against any adverse effects on surrounding properties. The models produced will serve as the foundation for developing a flood forecasting system as well as supporting the continued effort in disaster recovery, grant applications, floodplain management, and drainage maintenance for the City. To learn more about this project, visit

About CSRS

For over 40 years, CSRS has leveraged our innovation and leadership expertise to help plan, design, fund, and implement sustainable projects, recover from disaster with more resilience, and navigate political bureaucracy. With a culture of creative thinking – and a background in engineering and architecture – CSRS provides a balance between big ideas and the technical ability to deliver a successful project every time, no matter how large, complex, or challenging.

CSRS is committed to building stronger, smarter communities so clients can achieve project goals today while improving the social and economic fabric of communities along the way and well into the future.

More than program managers, they are engineers, architects, planners, surveyors, development advisors, governmental consultants, and grants management experts. Whether managing the project or performing the work themselves, CSRS understands every facet of successful project delivery.

The firm strives to achieve industry leadership in the education, infrastructure, land development, disaster recovery, commercial/retail, governmental and economic development markets. CSRS offers client-focused solutions designed to meet the unique requirements of projects of all types and sizes. Their experts work side-by-side and office-to-office, combining the skills, energy, and focus needed to create and implement solutions in partnership with clients. For more information, visit

Related News

View All news
May 11, 2021

Case Study: City of Clute

Following the federally declared disasters in 2015, 2016, and 2017’s Hurricane Harvey, the United States Congress implemented Community Development Block […]

Read More
April 14, 2021

CSRS Advises Climate Initiatives Task Force on Climate Actions for the State of Louisiana

Scientists around the world agree that rising global temperatures pose increased risks to human health and security, livelihoods, food security, […]

Read More


Like what we have to say? Subscribe and get helpful insights right where you need them - in your inbox