I-20 is about to get the upgrades it has so desperately needed, but it's going to come at the cost of lane closures and delays for commuters.

Starting on Friday, weather permitting, the Georgia Department of Transportation will begin resurfacing east and westbound lanes along 15 miles of the interstate between Sweetwater Creek, just after Thornton Road, and Hill Street (between exits 44 and 56B).

SECONDARY PHOTO - September 30, 2015 DeKalb County: Eastbound lanes of I-20 in DeKalb County were reopened Wednesday afternoon, Sept. 30, 2015 after a large amount of paint spilled onto the interstate. DeKalb police Capt. S.R. Fore said a truck was pulling a trailer loaded with 55-gallon drums of paint when two of the drums fell off near Wesley Chapel Road, prompting officials to shut down the eastbound lanes and divert traffic onto the Wesley Chapel Road exit and back onto I-20. "Paint is spilled across I-20," Fore said just after 11:30 a.m. The driver of the truck stopped, and was charged with failure to secure load. The driver's name was not released. Just before 12:20 p.m., all eastbound lanes were reopened, according to the WSB 24-hour Traffic Center. JOHN SPINK /JSPINK@AJC.COM

Credit: Andria Brooks

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Credit: Andria Brooks

Pavement restriping and sign upgrades will also be added improve safety and traffic flow at the I-20 East/ I-285 interchange.

The work will require lane closures on weeknights and weekends. There will also be some daytime closures of the shoulder. On weekends, motorists should expect multiple lane closures, according to GDOT.

The project is expected to be complete by December.

C.W. Matthews Contracting Company and E.R. Snell Contractor will complete the work for $39.9 million.