About this river
Pioneer Ditch is a 4.3 mile canal near Clearly Tahoe in Nevada. Streamflow is measured at the USGS gauge Truckee RV at Vista, NV (site 10350000). The mapped line runs from 39.5220, -119.7730 to 39.5201, -119.7036. The National Hydrography Dataset places it at stream order 8. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1899 to 2026
Pioneer Ditch typically runs highest in May, at a median 1,190 cfs, and lowest in August, at 298 cfs. The highest flow on record for any single day is 17,400 cfs, in 1963.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 492 | 358 to 640 | |
| February | 521 | 391 to 730 | |
| March | 655 | 494 to 1,050 | |
| April | 875 | 575 to 1,645 | |
| May | 1,190 | 762 to 2,090 | |
| June | 777 | 390 to 1,500 | |
| July | 320 | 248 to 496 | |
| August | 298 | 246 to 409 | |
| September | 354 | 274 to 441 | |
| October | 420 | 330 to 500 | |
| November | 464 | 333 to 561 | |
| December | 487 | 345 to 600 |
Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 99 years of record. Statistics published by the US Geological Survey for Truckee RV at Vista, NV (site 10350000). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Embed this gauge on your site
Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Pioneer Ditch's live streamflow, water level and 7-day trend. It reads the USGS gauge directly, updates itself, and links back here.
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