An abundance of cyclists will be rolling on Mercer Island this Saturday during the Fred Hutch Cancer Center’s Obliteride fundraiser.

According to the event map, riders are expected to flow through the Island between 9:15 a.m. and 4:30 p.m. The starting line is located on the University of Washington campus with cyclists leaving between 6:30-8:30 a.m. Riders choose 25-, 50- or 100-mile routes that will finish in Seattle’s Gas Works Park.

According to the Fred Hutch site, the Obliteride “is a bike ride and 5K walk/run that connects and empowers people to help cure cancer faster by raising funds for Fred Hutch Cancer Center. Every summer, Obliteriders of all ages come together to take action, honor loved ones, and rally their friends, family, and community to support Fred Hutch’s mission.”

The city has informed residents via social media of the Aug. 10 event, which includes cycling routes across and around Mercer Island. The city noted that normally, the bike route follows the Interstate-90 trail and doesn’t impact city streets. However, due to the temporary closure of the I-90 trail, riders will detour onto Island streets.

“Cyclists will be riding on-Island over most of the day, reaching the Island at different times depending on their pace,” the city noted.

There are two routes where bicyclists will be riding on Mercer Island:

Route 1: South from the I-90 trail down East Mercer Way, around the south tip of the Island and then north on West Mercer Way to the I-90 trail toward Seattle.

Route 2: The I-90 trail to Southeast 36th Street, across I-90 to North Mercer Way, onto 80th Avenue Southeast near the community and event center, west on Southeast 24th Street, north on 78th Avenue Southeast, west on Southeast 22nd Street, then onto North Mercer Way to the I-90 trail toward Seattle.

“Traffic control measures will be in place, but Islanders should expect possible delays. As always, please drive carefully and allow cyclists adequate room,” the city said.