Interstate 405 and Interstate 90 travelers should plan for overnight lane and ramp closures next week between Bellevue and Mercer Island. Crews working for WSDOT and Sound Transit are adding HOV lanes to the I-90 outer roadway between Mercer Island and Bellevue. They also are building new I-90 HOV on- and off-ramps on Mercer Island and improving I-90 HOV access at Bellevue Way.

The following closures are for Monday, March 23, through Wednesday, March 25:

Westbound I-90 between I-405 and E. Mercer Way

Crews will close up to two lanes of westbound I-90 between I-405 and E. Mercer Way. Each night the first lane will close at 7 p.m. and the second lane will close at 9 p.m. Both lanes will reopen by 5 a.m. the following morning.

HOV on-ramp from Bellevue Way to westbound I-90

Crews will close the HOV ramp from southbound Bellevue Way to westbound I-90 each night from 9 p.m. to 5 a.m. the following morning. Carpools and transit should use the general-purpose ramp during the closure.

HOV on-ramp from southbound I-405 to westbound I-90

Crews will close the HOV ramp from southbound I-405 to westbound I-90 each night from 9 p.m. to 5 a.m. the following morning. Carpools and transit should use the general-purpose ramp during the closure.

Crews will replace signs during the closures.