Woodward Dream Cruise 2024

Woodward Dream Cruise https://www.woodwarddreamcruise.com/
Calendar of Events https://www.woodwarddreamcruise.com/visitor-guide/events-route-map/
Saturday, August 17, 2024: 9:00 am to 9:00 pm.

It does really end at 9:00pm. I just missed it last year, 2023. I got out of work and hurried over there and the police had just started to block off the road.
As for when it starts, there are some events that are on Friday. There is a heavier traffic flow starting Wednesday.