Hydraulics The Hydraulics Unit provides technical expertise, guidance, design and quality assurance to manage stormwater, riverine and coastal impacts in and around roadways for the protection of the public, the environment and NCDOT assets.

Guidelines

Drainage Studies Guidelines
Guidance in the methods, procedures, policies, and criteria for Drainage Studies and Hydraulic Design.
Read More about Drainage Studies Guidelines

Highway Floodplain Program
Floodplain guidance, FEMA coordination, forms, submittals, requests and other resources.
Read More about Highway Floodplain Program
Highway Stormwater Program
Highway Stormwater Program products and useful links
Read More about Highway Stormwater Program

Organization
Hydraulics Unit Overview Handout
Hydraulics Unit Video
Stay in the Flow
Keep up-to-date on the Hydraulics Unit policies, procedures, innovations, updates, advertisements, etc.… by signing up to receive the Hydraulics Unit Newsletter. To sign up, just complete the simple form @ Hydraulics Unit Announcement Notifications.
View Current and Past Newsletters
Project Delivery Comments or Innovation ideas?
If you have an @ncdot.gov email please visit the CLEAR Portal to share your comment or idea.
All others, please use the Hydraulics Contact form.
Interagency Concurrence Meetings (Merger 4B / 4C)
Environmental Policy Unit Documents
2022 Merger & Interagency Calendar
2023 Merger & Interagency Calendar
Agency Contact Information Map
SMEs Contact List