SR 72/SR 1
Diverging Diamond Interchange

Virtual Workshop

Project Need:

This project was identified as a need out of the SR 1 Widening Study. The interchange modifications are needed to improve congestion and safety related to the heavy left-turn movements entering and exiting SR 1.

Project Location:

The interchange is located along SR 72 and SR 1 in New Castle County

Project Description:

The Diverging Diamond Interchange is an innovative interchange design that provides improved traffic flow, congestion relief, and safety along Route 72 at the Route 1 interchange. Our project hopes to provide traffic relief while maintaining much of the existing infrastructure as well as minimize environmental impacts. It will be the first of its kind in Delaware.

Project Timeline:

To be designed and constructed using a Design-Build procurement method. For more information on Design-Build, please visit: What is Design-Build? Design-Build Institute of America

  • Early Summer 2015 – Request for Qualifications (RFQ) review and selection
  • Late Summer 2015 – Request for Proposals (RFP) review and selection
  • Late Fall 2015 - Notice to Proceed (NTP) for Design-Build Team
  • Spring 2016 – Construction

Diverging Diamond Video

If you would like to make comments, you may call toll free to 800-652-5600, or call locally in the Dover area, 760-2120. Comments may also be mailed to DelDOT public relations, P.O. Box 778, Dover, Delaware, 19903. Comments are due within 30 days of the posting of this virtual workshop on the internet.

Thank you for participating in the Delaware Department of Transportation’s virtual workshop