Water Data

Northern Water collects real-time flow data for the Colorado-Big Thompson Project and Windy Gap Project. The C-BT Project contains 12 reservoirs, 35 miles of tunnels and 95 miles of canals on both sides of the Continental Divide in Northern Colorado.

The data for selected canals, streams, rivers, reservoirs and watersheds can be viewed and downloaded from the East Slope Water Data, West Slope Water Data and SnoWatch Snowpack Data pages.

St. Vrain Supply CanalSt. Vrain Supply Canal
Real-time flow data for the St. Vrain Supply Canal is available on the East Slope Water Data  page.

East Slope Water Data

View and download real-time water data for selected East Slope canals, ditches and reservoirs. Learn More » 

West Slope Water Data

View and download real-time water data for selected West Slope reservoirs, rivers and creeks. Learn More »

SnoWatch Snowpack Data

View and download real-time snowpack data for eight watersheds on both sides of the Continental Divide. Learn More»

Streamflow Forecasts

Find information on watershed snow-water content comparisons and streamflow forecasts. Learn More»