Crescent Bay Boat Ramp is a water access point on Lake Roosevelt located just east of Grand Coulee, featuring a paved boat launch, dock, vault toilet, large gravel parking area, and information kiosk.

The unpaved access road leads to this facility, which operates with a minimum lake elevation of 1,265 feet—check current lake levels before visiting as Lake Roosevelt is a working reservoir with significant seasonal fluctuations.

A boat launch pass is required year-round to access this facility.