The Spillway Boat Ramp is Lake Oroville's largest boat launch facility, featuring 12 lanes accessible to 821 feet elevation, plus additional lanes at lower water levels, with over 300 vehicle/trailer parking spaces and 130 single-vehicle spaces.

The day-use area offers restrooms, drinking water, fish cleaning station, and picnic facilities, with seasonal hours (6 a. m. –8 p. m. October–April; 5 a. m. –11 p. m. May–September) and 24-hour access when lake levels permit.

Mandatory watercraft inspections are required prior to launching to prevent invasive mussel spread.