https://www.galvnews.com/article_d4812c19-5b2c-51d1-a999-9f736b20d0db.html

More than 3,000 bicyclists from across the nation are expected to meet in Galveston for the annual Island Ride Out and Bike Expo this weekend, an event that will impede lanes on many street and roads, city officials say. Last year, about 3,400 people participated in the Island Ride Out.

The above article gives routes, times and lane closures for the weekend.