SR 72/SR 1
Diverging Diamond Interchange

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 Description:

This project is to construct a Diverging Diamond Interchange. This innovative interchange design will provide improved traffic flow, congestion relief, and safety along Route 72 at the Route 1 interchange. It will be the first of its kind in Delaware.

Project Timeline:

  • 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
  • SR72/SR1 DDI was opened to traffic November 2016

Diverging Diamond Interchange FAQs

Public Workshop Information

  • Public Workshop: Wednesday February 25
    Location: May B. Leasure Elementary School, Gymnasium,
    1015 Church Road, Newark, DE 19702
    Time:  4:30 p.m. – 7:30 p.m.

Diverging Diamond Video

(Reviewed and Updated on 01/30/2017)