Lampron said factors, including weather, will determine whether the shift comes this construction season or next.
The $37.3 million Exit 5 interchange project also has involved Route 28 improvements.
“They are still working on getting that finished,” Lampron said. “There will be some small traffic switches for a couple of more months.”
Middlesex Corp. of Littleton, Mass., is close to wrapping the $32.7 million widening and bridge project around Exit 1 in Salem.
“That will be completed within a month,” Levine said.
As Exit 1 work is completed, Levine said that should get rid of one of the biggest traffic bottlenecks for drivers.
He is optimistic that commuters will see an improvement from the Exit 1 and Exit 2 changes.
“Hopefully, we are past the worst of the traffic issues south of Exit 3,” Levine said.
R.S. Audley Inc. of Bow has a $35.1 million southbound widening project at Exit 3 in Windham that also involves work around the Route 111 interchange.
Levine said drivers won’t see any significant changes this fall. Blasting continues at Exit 3, he said.
DOT soon will advertise the contract for relocating Route 111A in Windham. Levine expects that to happen in September or October.
Levine and New Hampshire State Police Troop B commander Chris Wagner, whose officers patrol I-93, are pleased with how drivers have handled construction this year.
“We’ve fared very well so far,” Wagner said. “There haven’t been any major issues we can attribute to construction.”
There were two traffic fatalities in June and July, one in Salem, the other in Windham, but they were unrelated to construction and could have happened anywhere, he said.
When a series of nuisance traffic accidents in the spring slowed morning commutes, prompting complaints from travelers, state police responded with a bigger presence along the I-93 corridor.
“The public’s perception was they had had enough,” Wagner said. “We listened to that.”