Protecting water quality is an important part of the transportation planning process. NDOT has a process to consider and plan for all new highways or highway expansions. Roadway designers must keep in mind the need for erosion and sediment control throughout the entire design phase.
A Stormwater Pollution Prevention Plan (SWPPP) should be developed at the earliest phase of design, containing site information such as Best Management Practice (BMP) locations, narratives, and details. This will enable the designer to review the design for effectiveness at the Plan-In-Hand Review or on another site visit. Designers should work closely in the early stages of design with the Roadside Stabilization Unit to achieve erosion & sediment control objectives.
NDOT utilizes the expertise of field staff and project contractors to select and implement temporary Erosion and Sediment Control BMPs. Prior to the start of construction, contractors are required to submit their "Day 1" Temporary Erosion & Sediment Control Plan for NDOT approval. Once construction has begun, temporary BMPs are selected as needed by NDOT Certified Erosion & Sediment Control Inspectors (See the Training page). A number of tools are available to assist project staff and contractors in Erosion & Sediment Control BMP selection and implementation.
- Example Temporary Erosion Control Plan
- Approved Products List
- NDOT Drainage Design and Erosion Control Manual
- Chapter 3 of Stormwater Treatment within MS4 Communities
NDOT uses an electronic reporting tool, also known as ECO-Database, to communicate between NDOT project staff, contractors, district personnel, and other project stakeholders. Electronic reports are completed by a NDOT Certified Erosion & Sediment Control Inspector and then automatically distributed to applicable project staff. As a recipient of all electronic inspection reports for NPDES Construction Stormwater Permitted projects, RSU is allowed to more closely monitor inspection reports, corrective actions, and comments made by inspectors.
In addition to reviewing the electronic inspection reports for all NPDES Construction Stormwater General Permitted projects, RSU is responsible for conducting project inspections supplemental to those required by the permit.
Need More Information?
NDOT has several documents that help their designers select and design successful temporary or permanent BMPs to protect water quality.
- Drainage, Erosion & Sediment Control Manual
- NDOT Construction Stormwater BMP Pocket Guide
- NDOT Construction Manual
- NDOT Supplemental & Standard Specifications
If the construction site will disturb one acre or more, NDOT will request a permit from Nebraska Department of Environmental Quality (NDEQ). For more information, visit the NDEQ's website for a copy of the most current Construction Stormwater General Permit.