About this river
American Fork is a 4.0 mile stream near Lindon Marina in Utah. Streamflow is measured at the USGS gauge American FK above Upper Powerplant near American FK, UT (site 10164500). The National Hydrography Dataset places it at stream order 4. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1927 to 2026
American Fork typically runs highest in June, at a median 181 cfs, and lowest in February, at 14 cfs. The highest flow on record for any single day is 1,000 cfs, in 1983.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 15 | 12 to 17 | |
| February | 14 | 12 to 16 | |
| March | 16 | 13 to 20 | |
| April | 38 | 26 to 62 | |
| May | 143 | 85 to 207 | |
| June | 181 | 94 to 257 | |
| July | 73 | 42 to 96 | |
| August | 33 | 24 to 46 | |
| September | 24 | 19 to 31 | |
| October | 21 | 17 to 25 | |
| November | 19 | 15 to 22 | |
| December | 16 | 13 to 19 |
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 94 years of record. Statistics published by the US Geological Survey for American FK above Upper Powerplant near American FK, UT (site 10164500). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
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Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show American Fork'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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