What is the ‘path’? Sacramento is 69 miles south, according to a map search. I do not know the topography of the area.
Oroville to Marysville/Yuba City to Sacramento - reverse: I-5 north from Sac past airport to 70/99 to Marysville/Yuba City to Oroville
https://www.mapquest.com/places/thermalito-afterbay-oroville-ca-282021146
The topography is flat.A breach in this dam would send a 200 foot high wall of water down US 99 wiping out towns all the way down to the junction of the Sacramento River which is currently in near flood. Most of Central California would be under water. There would be flooding in the bay area.
Low foot hills and downhill to Sacramento.