where is falls lake in nc
â¢ Volume: 131,395 Acre Feet. Falls Lake is a 12,410 acre reservoir located in Durham, Wake, and Granville counties in North Carolina, USA. Falls Lake extends 28 miles up the Neuse River to its source at the confluence of the Eno, Little, and Flat rivers. The lake is named for the Falls of the Neuse, a section of the Neuse River that falls from the Piedmont into the lower Coastal Plain and which is now submerged under the lake.