Annual Operating Plans for Colorado River Reservoirs

Each year's Annual Operating Plan for Colorado River Reservoirs reports on both the past operations of the Colorado River reservoirs for the completed year as well as projected operations and releases from these reservoirs for the current (i.e., upcoming) year.

Annual Operating Plans are developed in accordance with Section 602 of the Colorado River Basin Project Act (Public Law 90-537); the Criteria for Coordinated Long-Range Operation of Colorado River Reservoirs Pursuant to the Colorado River Basin Project Act of September 30, 1968, as amended, promulgated by the Secretary of the Interior; and Section 1804(c)(3) of the Grand Canyon Protection Act (Public Law 102-575).

AOPs are prepared in consultation with representatives of the Governors of the seven Colorado River Basin States, Indian Tribes, Upper Colorado River Commission, appropriate Federal agencies, and others interested in Colorado River operations.

A map of the Colorado River Basin showing the Federally Recognized Tribes within the Basin.

Annual Operating Plans

Publication Date Report Title
05/2022 Draft Annual Operating Plan for Colorado River Reservoirs 2023 – First Consultation
12/2021 Annual Operating Plan for Colorado River Reservoirs 2022
12/2020 Annual Operating Plan for Colorado River Reservoirs 2021
12/2019 Annual Operating Plan for Colorado River Reservoirs 2020
07/2019 Annual Operating Plan for Colorado River Reservoirs 2019
12/2017 Annual Operating Plan for Colorado River Reservoirs 2018
12/2016 Annual Operating Plan for Colorado River Reservoirs 2017
01/2016 Annual Operating Plan for Colorado River Reservoirs 2016
12/2014 Annual Operating Plan for Colorado River Reservoirs 2015
12/2013 Annual Operating Plan for Colorado River Reservoirs 2014
01/2013 Annual Operating Plan for Colorado River Reservoirs 2013
12/2011 Annual Operating Plan for Colorado River Reservoirs 2012
01/2011 Annual Operating Plan for Colorado River Reservoirs 2011
01/2010 Annual Operating Plan for Colorado River Reservoirs 2010
Last Updated: 7/5/23