Updated – Colorado River Basin

Water Operations

Reservoir Data

This is Reclamation's new hydrologic database access portal. We encourage everyone to take a look at our new and improved access portal and begin plans to transition to this improved data delivery source.

Reservoir Data (storage, inflow, releases, elevation & more)
Gage Data (flow, flow volume & side inflows.)

Data Retrieval (apps nearing end of life)
40-Day Data

Current Conditions

System Overview
HydroData Basin Maps (current reservoir capacity & current and historical snow and precipitation charts)
Weekly Hydrology Summary Link is to a PDF file

Teacup Diagrams

Seasonal Notices
The Snowpack Conditions Map has been decommissioned to see current and historical snowfall data please visit the HydroData Basin Maps link above.

Contact us

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

Last Updated: 9/18/23