Forsyth County commuters could notice some relief during the drive home Monday on Ga. 400 as work to add another lane is set to finish.

“The third northbound lane ends just north of the McGinnis Ferry Road bridge over [Ga.] 400 right now,” said Teri Pope, a state Department of Transportation spokeswoman.

“Contractors are working this weekend to extend the third lane up through the McFarland interchange to the bridge over Big Creek Greenway. That gives us two more miles of the third lane.”

She added that the additional capacity will “allow more vehicles to flow up into Forsyth quicker and more efficiently.”

Pope said the project, handled by C.W. Matthews Contracting Inc. of Marietta, is one of two improvements to the corridor scheduled for completion Monday.

The other is an entrance ramp improvement at Abernathy Road in northern Fulton County. The two projects cost a total of about $3.4 million.

According to Department Commissioner Keith Golden, the efforts will improve overall operations on the road by “enhancing efficiency and increasing capacity.”

“The additional two miles of a third lane on 400 north will aid motorists traveling farther into Forsyth County,” Golden said in a statement. “We are proud to finish this work two months ahead.

“Improving traffic flow and doing it ahead of schedule is our holiday gift to the users of [Ga.] 400.”