Navajo Dam Technical Working Group

Navajo Dam

Next Meetings:

The next coordination meeting will be Tuesday, January 29th, 2019 at 1pm at the Farmington Civic Center, 200 West Arrington, in Farmington, New Mexico.

 

Purpose and Participation

This meeting was held in Farmington, New Mexico at the Civic Center on August 21st, 2018. The meeting minutes, as mailed, as well as the meeting handouts are available in the archives. Meeting attendance is shown on the archived minutes.

The purpose of these meetings, held annually in January, April, and August, is to gather stakeholder input for determining upcoming operations for Navajo Reservoir. This input is used in Reclamation’s development of an overall 24-month study for operation of Reclamation projects in the Upper Colorado River Basin, which includes plans for Glen Canyon, Flaming Gorge, Aspinall Unit and Navajo. Input from individuals, organizations, and agencies along with other factors such as weather, water rights, endangered species requirements, flood control, hydro power, recreation, fish and wildlife management, and reservoir levels, will be considered in the development of these reservoir operation plans. In addition, the meetings are used to coordinate activities and exchange information among agencies, water users, and other interested parties concerning the San Juan River and Navajo Reservoir.

Meeting Summary

Full meeting Minutes and the Presentation is available below in the Archives in PDF form.

  • The snowpack peaked at 55% of average in the San Juan Basin. The snowpack was the 3rd lowest in the years on record.
  • Greg Smith, Senior Hydrologist from the Colorado River Basin Forecast Center (CRBFC) in Salt Lake City, Utah presented a slide show explaining how the inflow forecasts were derived and upcoming impacts of the remainder of the monsoon season and forecast El Niño pattern.
  • The final April-July modified unregulated inflow into Navajo Reservoir totaled 155,000 acre-feet (ac-ft), which was 21% of average.
  • A short (2 hour) peak of 2,000 cubic feet per second (cfs) was conducted in June for sediment transport and to aid habitat establishment downstream of the dam.
  • Releases varied between 350 and 1,050 cfs to target the minimum downstream flow of 500 cfs in the endangered fish habitat to meet flow recommendations.
  • End of water year reservoir elevation under the August Most Probable Forecast is expected to be near 6025 feet, but is highly dependent on moisture and irrigation through the end of the water year.
  • A spring peak release in WY 2019 has a 20% chance of occurring. A shortage in WY 2019 currently has a 3% chance of occurring.

Supporting Information

Contact

Please contact the Operations Group via e-mail at ResourceMgr@usbr.gov for additional information.

Last Updated: 8/23/18