To alleviate congestion and improve mobility in Stratford, Connecticut, the Connecticut Department of Transportation (CTDOT) reconstructed Interchange 33 on I‑95 and transformed it into a full diamond interchange. STV served as the prime design consultant, advancing roadway, bridge and intersection improvements that enhance access along this important corridor between Stratford and Milford. The project strengthens connectivity to U.S. Route 1 and supports regional economic development by improving circulation for residents, commuters and local businesses.
What challenges did STV address?
The project area included significant quantities of contaminated materials that required careful handling to avoid environmental and community impacts. STV needed to design new highway ramps, widen structures and improve an adjacent intersection while minimizing disruption to nearby commercial and residential properties. Coordinating with Milford and surrounding communities was essential due to the interchange’s high visibility and heavy daily traffic volumes.
What solutions did STV deliver?
STV delivered comprehensive civil and structural engineering services, including roadway design, bridge replacement and widening, drainage improvements and intersection upgrades. An innovative design strategy minimized excavation in contaminated zones, reducing risks to workers and the public. STV collaborated closely with CTDOT, community stakeholders and businesses to maintain access throughout construction. The project’s design and coordination approach earned an Engineering Excellence Award from the American Council of Engineering Companies of Connecticut.
How does this project benefit the community?
The full diamond interchange improves access to local businesses, reduces congestion and supports long‑term growth initiatives in Stratford and the surrounding region. Safer ramps and enhanced traffic flow strengthen mobility for residents, commuters and visitors, helping to revitalize a key commercial corridor.
Key stats and accolades
- Conversion of an outdated interchange to a full diamond configuration
- New highway ramps and improved intersection geometry
- New bridge construction and widening of an existing structure
- Innovative design approach to avoid disturbing contaminated materials
- ACEC Connecticut Engineering Excellence Award
