Off-stream reservoir

An off-stream reservoir is a reservoir that is not located along a river and is instead supplied by a pipeline, aqueduct or an adjacent river.[1] This design has the advantage of limiting the reservoir's ecological impact.[2]

The San Luis Reservoir is the largest off-stream reservoir in the United States. Although it is located on a small stream, it gets the vast majority of its water from the California Aqueduct by pumping aqueduct water up-hill to the reservoir.

The Sites Reservoir is a planned off-stream reservoir in California.[2]

References

  1. ^ "Dungeness Off-Channel Reservoir | Sequim, WA - Official Website". sequimwa.gov. Retrieved 1 August 2025.
  2. ^ a b Alexander, Kurtis (2026-01-23). "Trump administration signs off on plan for California's biggest reservoir in decades". San Francisco Chronicle. Retrieved 2026-01-26.