What are the details?
By making better use of the existing I-84 footprint, the Flex Lane would create a more reliable and efficient experience for everyone.
The Flex Lane on I-84 would be installed between Exits 3 and 7 in Danbury. This stretch of interstate, approximately four miles long, has been identified as a high-congestion area. The Flex Lane would be constructed within the existing right of way on the median shoulder.
While the Flex Lane would operate between Exits 4 and 7, the overall project limit extends past those areas as shown above. This is to accommodate additional improvements to maintain our transportation system in a state of good repair, which means continually improving the safety and condition of our roadways. In total, the project is estimated to cost $250 million. This investment will cover both Flex Lane improvements and state of good repair investments.
Proposed Improvements
Flex Lane Improvements:
- New overhead gantries
- Lane control signs
- Full camera coverage
- Variable speed limits
- Isolated bridge median and parapet improvement
State-of-Good-Repair Investments:
- Median reconstruction
- Drainage and guiderail upgrades
- Illumination and signage upgrades
- Routine pavement preservation and improvements
- Wrong-way detection systems
When would I see these improvements?
The Flex Lane is currently in design and anticipated to start construction in 2028. Construction is anticipated to take 2-3 years. Here are the steps to get to construction with anticipated dates which are subject to change:
- Preliminary Design Begins – October 2025
- Public Information Meeting – March 2026
- Federal Highway Administration Approves Design – June 2026
- Design Completion – January 2028
- Anticipated Construction Start – Summer 2028