Colorado River Basin Natural Flow and Salt Data

The information contained in the following web pages is of a technical nature. It is intended for use by those in the scientific and water resources communities interested in natural flow and salt computations in the Colorado River Basin. These data are furnished by the Bureau of Reclamation for use as hydrologic inputs to the Colorado River Simulation (CRSS) long-term planning and operations model.

Natural flow data is termed 'CURRENT' when it is currently being used for modeling purposes in CRSS. Please note that even though natural flow data is termed 'CURRENT' it is SUBJECT TO CHANGE over the entire record due to source data updates.

Presently the consumptive uses and losses data from 2006-2017 used to compute natural flow are PROVISIONAL and will be revised in the future. These revisions will change the natural flow computation.

Natural Flow and Salt Data Index

Current Natural Flow and Salt Data
      Natural Flow Supporting Data
      Natural Salt Supporting Data

Previous Natural Flow and Salt Data
Last Updated: 01APR2019