Because of the race, some bridge traffic will be rerouted between 1 a.m. and approximately 9 a.m.
One lane of the lower-level's eastbound span also will be closed for safety reasons. Detour signs will redirect traffic to the appropriate alternatives.
Approximately two thousand bicyclists will compete in the 106-mile race taking them to Bear Mountain in New York State, where they will turn around and finish at the Palisades Interstate Parkway's Ross Dock.
The lower-level westbound roadway is anticipated to reopen at 8:30, followed with the rest of the ramp/roadway closures being re-opened shortly thereafter.
At the completion of the race, some participants will be using the bridge's south walkway to return to New York City. They are advised to use caution and always give pedestrians the right of way.