The bridge MIGHT be crowded tomorrow, so be prepared for possible delays:
http://community.acsevents.org/site/TR?fr_id=1590&pg=entry
GWB Challenge, Sunday June 11
I was on the event website and read in a document that the bridge will be closed to bicycles after 7:45AM, but I wasn't sure if that includes the sides of the bridge or if it just refers to the bicycle portion of the event.
I planned to go over the bridge at 8:15am - 35 miles into a 115 mile ride on Sunday.
From the participant packet for the GWB Challenge:
WALKERS/RUNNERS: PLEASE STAY TO THE RIGHT AS YOU CROSS THE GWB. YOU WILL BE SHARING THE WALKWAY WITH GENERAL CYCLISTS AND PEDESTRIANS.
The event starts at 7:40am.
After an email exchange with the event organizers my understanding is that the pedestrian path will not be closed to non-participants.
Participating cyclists actually get to traverse the upper roadway of the bridge, while walkers & runners will use the pathway... which by 9:45-10 should be mostly cleared.