The annual Mercer Island Rotary Run Day hits the streets and trails of Mercer Island on Sunday, March 22, resulting in temporary road closures and some traffic delays. Five events benefiting colon cancer awareness will take place throughout the morning on the streets of the Town Center, North Mercer neighborhood, North Mercer Way, East Mercer Way and West Mercer Way, as well as the I-90 Trail.

Mercer Island Police, Rotary course marshals and volunteers will provide traffic control throughout the day. Signs will clearly denote detours and areas of temporary traffic delays. Bicyclists and drivers are asked to comply with requests made by race officials.

The earliest event is the half-marathon walk, which starts at 7:30 a.m. The 5K run/walk starts at 9:30 a.m.

Residents should note the approximate times that traffic will be impacted:

S.E. 24th Street between 78th Avenue S.E. and 84th Avenue S.E. will be closed both ways from 8 a.m. to noon.

81st Avenue S.E. will be closed at North Mercer Way from 7:45 a.m to noon.

S.E. 26th Street at the Island Crest Way Ramp will be closed from 8:15 a.m. to 11:30 a.m.

The 2600 block of 84th Avenue S.E. to Luther Burbank will be closed from 8 a.m. to 10 a.m.

North Mercer Way from South Luther Burbank Park to Gallagher Hill will be closed intermittently from 7:30 a.m. to 11:30 a.m. Local traffic only.

Shorewood Drive at 90th Avenue S.E. will be closed intermittently from 8:50 a.m. to 10:30 a.m.

Gallagher Hill at S.E. 40th Street will be closed from 7:45 a.m. to 8:15 a.m. and from 9 a.m. to 10 a.m.

Southbound East Mercer Way from S.E. 36th Street to S.E. 70th Place will be closed from 9 a.m. to 10:30 a.m.

Northbound West Mercer Way will be closed at S.E. 24th Street from 9 a.m. to noon, with intermittent closures as the race passes.

Westbound S.E. 24th Street at 66th Avenue S.E. will be closed from 10 a.m. to noon.

The West Mercer Way off ramp will be closed from 8 a.m. to noon.

There will be other intermittent closures at intersections along West Mercer Way and near the Park-and-Ride as the race passes.

Residents should use Island Crest Way as the primary North/South route during these times, and if they must use East, West, or North Mercer Way, should travel in a counterclockwise direction to minimize delays.

For more visit: www.mercerislandhalf.com.