Section 11207 Of Article 2. Shasta Dam From California Water Code >> Division 6. >> Part 3. >> Chapter 2. >> Article 2.

. Shasta Dam shall be constructed and used primarily for the following purposes:
  (a) Improvement of navigation on the Sacramento River to Red Bluff.
  (b) Increasing flood protection in the Sacramento Valley.
  (c) Salinity control in the Sacramento-San Joaquin Delta.
  (d) Storage and stabilization of the water supply of the Sacramento River for irrigation and domestic use.