The following projects are expected to affect traffic this week, according to the state Department of Transportation.
South Thurston County: Bridge work will close single lanes of Interstate 5 in both directions between Maytown and Grand Mound from 7:30 p.m.-5:30 a.m. daily. Rolling slowdowns are expected southbound from 6-10 a.m. and northbound from 9 a.m.-5 p.m. today through Thursday.
Lacey: Bridge maintenance will close the right lane of northbound I-5 at Sleater-Kinney Road and the offramp onto Sleater-Kinney from 9 p.m.-5 a.m. Wednesday and Thursday.
South Thurston County: Installation of rumble strips will close a lane of state Route 507 between the Lewis County line and Carter Street Southeast in Yelm from 10 a.m.-6 p.m. Friday.
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Tumwater: A mobile vegetation-management operation is planned in both directions of state Route 121 at the Old Highway 99 offramp from 8:30-11 a.m. Tuesday.