articleThe Brief Another summer weekend will be heavily disrupted by major road construction closures. Interstate 405 will have closures in Tukwila and Kirkland, and I-5 and Highway 99 will have closures in Seattle. The closure will be for crews to grade pavement on Northeast 85th Street and install curbs as part of the I-405/Northeast 85th Street Interchange and Inline BRT Station Project. SR 99 closures in SeattleThe SR 99 tunnel will close overnight for routine tunnel maintenance from 10 p.m. on Friday, August 14, until 6 a.m. on Saturday, August 15. The Occidental Avenue South/South Kenyon Street connection to northbound SR 99, West Marginal Way South/South Holden Street connection to northbound SR 99, and First Avenue South connection to northbound SR 509 will also be closed.