USGS Station 11276500 • Lat 37.9374°, Long -119.7982° • Elevation California Basin
Flow is within the historical middle range (10th–75th percentile). Actual navigability depends entirely on the specific river section and your craft.
Flow is in the historical middle range. Wading conditions and water clarity depend on recent local weather and upstream releases.
Conditions change quickly. Always verify locally and use your own judgment before entering any body of water. This data is informational only and provided as-is.
Pins show this gauge (highlighted) and up to 5 nearby USGS stations. Tap any pin or use the list to check conditions upstream or downstream.
Merced River at Happy Isles Bridge near Yosemite, CA
USGS Station 11264500 • 19.3164723133515 mi away
South Fork American River near Placerville, CA
USGS Station 11444500 • 79.7526290030636 mi away
San Joaquin River near Vernalis, CA
USGS Station 11303500 • 82.1519622913055 mi away
Middle Fork American River near Foresthill, CA
USGS Station 11433300 • 90.3199815028418 mi away
Truckee River at Farad, CA
USGS Station 10346000 • 103.76986431759 mi away
Guide or outfit trips near Tuolumne River near Hetch Hetchy, CA?
Connect directly with river runners checking water levels on station #11276500.
Verified answers based on USGS station #11276500 live telemetry and historical statistics.
The current water level (stage height) at Tuolumne River near Hetch Hetchy, CA (USGS #11276500) is 2.93 ft with a streamflow discharge of 55 CFS. Real-time condition is rated Normal (near average for this specific day of the year) and stream levels are holding steady.
Normal seasonal flow for Tuolumne River near Hetch Hetchy, CA is determined from decades of USGS daily-mean discharge percentiles. Flow between the 10th percentile (36 CFS) and 75th percentile (111 CFS) is classified as Normal, with the historical daily mean flow being 56 CFS for this date.
The official National Weather Service (NWS) flood stage for USGS #11276500 is 12 feet. With current water level at 2.93 ft, this station is currently below flood stage (margin of 9.1 ft).
USGS gauge #11276500 (Tuolumne River near Hetch Hetchy, CA) is located at latitude 37.9374°, longitude -119.7982° in California. Data is transmitted via USGS GOES satellite telemetry every 15 to 60 minutes and refreshed automatically on ClearGauge every 15 minutes.
Current flow is rated Normal. Conditions are within normal seasonal historical ranges, which is generally suitable for boating, paddling, and wading depending on your experience and skill level. Always inspect rapids in person, wear a USCG-approved PFD, and check weather alerts before launching.
National Water Information System (NWIS) • Automated satellite telemetry transmission every 15 to 60 minutes.
Live readings via USGS satellite telemetry, updated every 15–60 minutes. Low / Normal / High verdicts are based on the 10th and 75th percentile discharge thresholds from the USGS Daily Statistics Service (decades of approved daily-mean data). Flood Risk uses the NWS published flood stage where available. Full methodology →
River Safety Notice
River conditions can change abruptly due to upstream reservoir releases, sudden mountain thunderstorms, flash flooding, and seasonal snowmelt surges. Always scout rapids prior to commitment, wear an approved USCG Type III/V Personal Flotation Device (PFD), carry appropriate rescue gear, and check local emergency management bulletins before launching.
