After a break for Seafair weekend, the #SouthKingSlowdown resumes the weekend of Aug. 12-15 with bridge expansion joint replacement and drainage repair on Interstate 5 near Tukwila. This is the first of two big weekends of work in South King County.

The second weekend is planned for Aug. 19-22 construction on southbound I-5 in Tukwila and southbound State Route 167 in Algona/Pacific.

This weekend, a variety of work will occur on southbound I-5 in Tukwila.

• Replacement of four bridge expansion joints on the right side of the southbound I-5 Duwamish River Bridge.

• Concrete panel repair between the Duwamish River Bridge and Klickitat Drive.

• Drainage repairs near the State Route 518 on-ramp to southbound I-5.

• Removal of hazardous trees near the State Route 518 on-ramp to southbound I-5.

• Grinding concrete panels on southbound I-5 near the I-405 interchange.

Lane closures:

• Southbound I-5 will be reduced to two lanes from Martin Luther King Jr. Way South/SR 900 to Klickitat Drive.

• Lanes begin closing at 8 p.m. Friday, Aug. 12, with I-5 reduced to two lanes at 10 p.m. At least two lanes will be open at all times except during overnight hours on Friday and Sunday, when only one lane may be open.

• All lanes will be open by 5 a.m. Monday, Aug. 15.

Ramp closures from 9 p.m. Friday. Aug. 12 to 5 a.m. Monday, Aug. 15:

• Southbound I-405 ramp to southbound I-5

• Southbound MLK Jr. Way South on-ramp to southbound I-5

• Southbound I-5 off-ramp to Interurban Avenue.

• Southbound SR 599 right side ramp to southbound I-5.

• Eastbound SR 518 and the Klickitat Drive ramps to southbound I-5 will be closed from 3:30 to 10:30 a.m. Saturday, Aug. 13 and 3:30 to 11 a.m. Sunday, Aug. 14.