Construction in the Exit 3 area will ultimately reconfigure this exit into a diamond interchange through four separate construction contacts. Major changes in this area will include elimination of loop ramps, relocation of the Northbound Mainline to the west and relocation of Route 111 to the north. Construction in this area is ongoing and will continue through 2015. The first two contracts in this area (13933G & K), completed in 2010 and 2011, resulted in an interim condition, with southbound traffic being located onto the newly constructed northbound barrel. Northbound traffic will remain on the existing northbound roadway. This will allow the remaining construction to take place with minimal traffic interruptions. Please see the graphics below for a rendering of the interim configuration and the final configuration and more information on the construction contracts in the Exit 3 area.* Rollover image to view Interim Configuration.
Exit 3 Southbound Off-Ramp & Northbound Bridges
To ultimately reconfigure Exit 3 to a diamond interchange, a new southbound off-ramp was constructed under Contract 13933K, replacing the existing loop ramp. This new ramp, located north of NH Route 111, will help to improve the interchange capacity and improve safety on the mainline. Also, two new bridges to carry the relocated northbound mainline over NH 111 and NH 111A were constructed, removing two "red list" bridges from service. Construction on this $27.6M project began in the fall of 2008 and was substantially complete the end of 2010.
Click here to view the Exit 3 Area Photo Gallery.
Exit 3 Northbound Mainline
Contract 13933G involves the construction of 9,775 LF of I-93 northbound mainline, 4,450 LF of I-93 southbound, and interim crossovers (north and south ends) transitioning to the existing southbound lanes in the Exit 3 area. The construction, which started in June 2009, will match into the new I-93 northbound bridges over NH Routes 111 and 111A and the new southbound off-ramp being constructed under the 13933K contract. George R. Cairns and Sons, Inc., contractor, substantially completed this project in December 2011.
Click here to view the Exit 3 Mainline Area Photo Gallery.
Exit 3 Area Southbound Mainline
Contract 13933I will construct over three miles of the new southbound section of the highway as well as the new southbound on ramp. During construction of 13933I, southbound traffic will be diverted to the new northbound section of roadway constructed under 13933G & K. Therefore, work will progress, for the most part, out of traffic and have minimal effect on the traveling public. Also, two new bridges to carry the relocated southbound mainline over NH 111 and NH 111A will be constructed, removing two "red list" bridges from service. Construction of this project is estimated at $55M and is anticipated to start in the summer of 2012.
Exit 3 Area Northbound Mainline Final Configuration
Contract 13933H will be the final construction project in the Exit 3 area and will serve to tie in all of the previous construction projects in this area. This project will construct the new northbound on and off ramps, relocate a portion of Route 111A, finalize reconstruction of Route 111 and complete tie-ins to complete both the northbound and southbound barrels. Construction of this project is estimated at $33M and is anticipated to start in the summer of 2012.
Exit 3 Area Southbound Mainline Bridges
Contract 13933N involves reconstruction of the I-93 SB mainline bridges over NH Route 111 and NH Route 111A at Exit 3 in Windham. The new SB bridges will be constructed adjacent and look similar to the recently completed NB bridges over NH 111 and NH 111A constructed under Contract 13933K.
Click here to view the Exit 3 Area Southbound Mainline Bridges photo Gallery.