ConnDOT: Operational Improvements Under Development for I-91 Northbound at Interchange 29

FOR RELEASE: November 24, 2015
TELEPHONE: (860) 594-3062
FAX: (860) 594-3065

Operational Improvements Under Development for I-91 Northbound at Interchange 29

The Connecticut Department of Transportationís Office of Engineering is developing plans to relocate I-91 northbound Interchange 29, and widen I-91 northbound and Route 15 northbound to I-84 East in Hartford and East Hartford. The purpose of the project is to address safety concerns associated with the capacity and operational deficiencies at the I-91 northbound Interchange 29, which routinely experiences significant traffic delays and above average crash frequency.  Much of this can be attributed to the steep vertical grade and single-lane configuration of the ramp, the heavy traffic weave on the Charter Oak Bridge, and the near capacity volumes on I-91.

The proposed improvements include widening I-91 northbound to extend the four-lane travel section from Interchange 27 to Interchange 29 to relieve congestion, address safety concerns, and provide an efficient I-91 to I-84 connection.  It is also proposed to remove the existing ramp at I-91 northbound Interchange 29 and provide a major diverge south of the I-91 bridge over Route 15 to address the existing adverse vertical grade and limited capacity of the existing ramp.  The new I-91 diverge will consist of three lanes to the right, maintaining I-91 traffic (existing condition), and two lanes to the left, conveying traffic to Route 15 northbound via a new structure over Route 15 southbound.  The existing pavement markings on the Charter Oak Bridge will be modified to accommodate the additional northbound lane from I-91.  Additional improvements include widening of Route 15 northbound to three travel lanes, from the Charter Oak Bridge to the Silver Lane underpass, to address congestion concerns on Route 15 and allow a more desirable distance from Interchange 29 on I-91 to merge from three travel lanes to two prior to its merge with I-84 East.

The present schedule indicates that the design will be completed in November 2017, with construction anticipated to start in the spring of 2018, assuming acceptance of the project, availability of funding and receipt of any required right-of-way and environmental permits.  This project will be undertaken with 80% federal and 20% state funds.

It is the Department's policy to keep the public informed and involved when such projects are undertaken.  It is important that the community share its concerns with us to assist in the project's development.  A public informational meeting will be conducted upon the completion of the preliminary design.  At this time, it is not anticipated that a formal public hearing will be necessary.

Anyone interested in receiving information on this project may do so by contacting Ms. Susan M. Libatique, Principal Engineer, at (860) 594-3179 or by e-mail at  Please make reference to State Project No. 63-703.

Content Last Modified on 11/24/2015 1:10:01 PM