About this river
Marysville Canal is a 6.5 mile canal near Three Rivers Ranch in Idaho. Streamflow is measured at the USGS gauge Fall River near Squirrel ID (site 13047500). The mapped line runs from 44.0689, -111.2313 to 44.0698, -111.3290. The National Hydrography Dataset places it at stream order 6. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1994 to 2026
Marysville Canal typically runs highest in May, at a median 1,580 cfs, and lowest in September, at 226 cfs. The highest flow on record for any single day is 5,500 cfs, in 2011.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 230 | 219 to 240 | |
| February | 232 | 224 to 248 | |
| March | 228 | 222 to 238 | |
| April | 239 | 225 to 404 | |
| May | 1,580 | 1,300 to 2,200 | |
| June | 1,415 | 634 to 2,040 | |
| July | 242 | 227 to 417 | |
| August | 231 | 222 to 249 | |
| September | 226 | 220 to 240 | |
| October | 227 | 222 to 243 | |
| November | 230 | 223 to 244 | |
| December | 227 | 220 to 239 |
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 32 years of record. Statistics published by the US Geological Survey for Fall River near Squirrel ID (site 13047500). 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 Marysville Canal'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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