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At the start of the New Year, Dare County commissioners adopted the 2023 Stormwater Master Plan.

The county received a FEMA Flood Mitigation Assistance grant to update the 2001 Stormwater Master Plan for the unincorporated areas of the county. The consultant was WithersRavenel.

Public input and stakeholder engagement identified specific project areas within the county. WithersRavenel developed models to simulate hydrology and hydraulics.

In total, eight areas of concern were identified and modeled. Conceptual stormwater improvement plan recommendations were developed.

The eight identified areas showing problem, solution and range of cost estimates are:

North Roanoke Island:

Problem: Ponding

Installation of storm drainage network, swales and culverts. $6 to $8 million

Wanchese

Problem: Ponding

Swale maintenance/enhancement. $500,000 to $1 million

Colington Pond

Problem: Abandoned/blocked outlet

Installation of pond outfall. $250,000 to $500,000

Rodanthe

Problem: Ponding/altered drainage channel

Reestablish north drain connectivity. $500,000 to $1 million

Avon – Ocean View Drive

Problem: Ponding

Installation of infiltration trenches and swales. $1.5 million to $2 million

Buxton – Old Lighthouse Road

Problem: Ponding

Installation of infiltration trenches, culverts and storm drainage network. $500,000 to $1 million

Frisco

Problem: Ponding

Culverts and swale maintenance/enhancement. $500,000 to $1 million

Hatteras Village

Problem: Ponding

Installation of detention swales. $250,000 to $500,000

Countywide: Policy update: Develop a comprehensive stormwater management policy with emphasis on implementing low impact development, $50,000 to $250,000

Countywide: Program management:

Stormwater asset inventory, mapping and maintenance program, $150,000 to $250,000.

To find the plan, go to DareNC.gov, under Departments go to Board of Commissioners, select Agendas, Minutes and Videos, go to the bottom of the 2024 agenda list. The Stormwater Master Plan is No. 13 on the Jan. 2, 2024 Agenda.

The plan has six chapters. Chapter Two details federal, state and local regulations and ordinances about stormwater. Chapter Five is titled “Drainage Problem Area Recommendations,” where the eight areas of concern are described and solutions recommended.

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