Lane closures near Southcenter, in Seattle and other slowdowns await weekend drivers.

Weekend three of the five-part South King Slowdown will snarl traffic near Southcenter, and several other delays lurk just beyond your windshield:

• Interstate 5 southbound will be reduced to two lanes, just beyond the Southcenter/I-405 interchange, until 5 a.m. Monday, as pavement replacement continues as far as Kent Des-Moines Road.

• The Seafair Torchlight Parade on Fourth Avenue, which begins at 7:30 p.m. Saturday, will block downtown traffic and cause bus detours.

• Two lanes of northbound I-5 in Seattle will close from 2. to 10 a.m. both Saturday and Sunday, on the Ship Canal Bridge.

• Overnight closures are planned on the southbound I-405 ramp to westbound I-90 from 9 p.m. Friday to 9 a.m. Saturday.

• Westbound Highway 18 at Tiger Mountain will close from 4 to 10 a.m. Saturday.

• Bridge painting continues to close one lane of the I-90 Columbia River Bridge eastbound at Vantage, causing delays to cross-state vacationers and freight. The state advised fans of this weekend’s Watershed Country Music Festival at the Gorge Ampitheatre “to get on the road ASAP.”

• Coming up Monday, electrical utility construction will close a lane of Stewart Street during peak morning times — likely to clog transit and cause car overflows to I-5, for three months.