Perimeter roadwork: On I-285 in Cobb County, two southbound lanes will be closed all weekend between Paces Ferry Road and South Cobb Drive for concrete slab replacement and repair.
Also on I-285, sign work will close the left lane in each direction between Glenridge Drive and Chamblee Tucker Road from 6 a.m. to 5:30 p.m. Saturday.
Ga. 400 bike ride: In north Fulton County, the southbound lanes of Ga. 400 between Holcomb Bridge Road and Northridge Drive will be closed from about 7 a.m. to 7:30 a.m. Sunday for the annual Hospitality Highway Century Bike Ride that Spear said is expected to attract as many as 2,000 cyclists.
“During that time period, southbound traffic will be diverted to Ga. 9,” Spear said. “Riders will exit Ga. 400 at Northridge and return north via Ga. 9 and Riverside Drive.”
Scattered showers could delay roadwork: All of the weekend road projects are weather-permitting, and Channel 2 meteorologist Brad Nitz put the chance of rain at 60 percent Friday, 40 percent Saturday and 30 percent Sunday.
Afternoon highs will be in the upper 80s Friday and Saturday and around 90 on Sunday, with morning lows in the low 70s.
Festivals, concerts and a history lesson highlight weekend events: The 150th Commemoration of the Battle of Kennesaw Mountain continues through Sunday at Kennesaw Mountain National Battlefield Park in Cobb County.
Closer to town, the Old Fourth Ward Park Arts Festival will be held Saturday and Sunday at the park on Angier Avenue.
Downtown, Philips Arena hosts a Katy Perry concert Saturday night.