June 16, 2018: Saturday– Full Open Kennebec River Release 8000cfs. Harris Station Dam will run full throttle at 8000cfs. The action is fast and the waves are huge. Renowned for its 12 mile long river gorge with breathtaking wilderness views and exhilarating high volume whitewater, this is our most popular rafting adventure. Chock full of big water fun-book early as this trip fills very quickly!