Middle Fork Salmon River level at Boundary Creek
Idaho · Paddling & whitewater
Measured at USGS 13309220 — MF SALMON RIVER AT MF LODGE NR YELLOW PINE ID · NWS forecast point MIDI1
Reading taken · as of 18 min ago
In its normal runnable range
At 583 CFS, this gauge is running 96% of normal for mid-September — close to the 608 CFS median USGS has recorded for this date across 36 years of record (1973–2026).
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Flow history at Boundary Creek
Daily values from USGS 13309220, updated every 15 to 60 minutes; NWS forecast for MIDI1 reissued through the day. Provisional.
Highest crests on record at Boundary Creek
12 on record
| Stage | Flow | Date |
|---|---|---|
| 10.80 ft | 20,900 CFS | Jun 16, 1974 |
| 8.75 ft | 16,300 CFS | Jun 1, 2017 |
| 8.68 ft | 16,300 CFS | Jun 5, 2010 |
| 8.49 ft | 15,700 CFS | May 21, 2008 |
| 8.23 ft | 14,300 CFS | May 31, 2003 |
| 7.95 ft | 13,300 CFS | May 29, 1999 |
| 7.78 ft | 11,100 CFS | Jun 7, 1975 |
| 7.68 ft | 12,700 CFS | Apr 26, 2012 |
| 7.49 ft | 12,000 CFS | May 22, 2023 |
| 7.35 ft | 11,700 CFS | May 20, 2009 |
Crests published by the National Weather Service.
About Middle Fork Salmon River at Boundary Creek
In Idaho — the reading paddlers, anglers and outfitters here check before committing to a shuttle. Permit-lottery 100-mile trip; flow decides the put-in.
Middle Fork Salmon River at Boundary Creek — common questions
3 questions
How fast can Middle Fork Salmon River at Boundary Creek come up?
Fast. It is free-flowing, so rain upstream moves it directly. Several feet in a few hours is normal after a heavy storm.
Is Middle Fork Salmon River at Boundary Creek high or low for this time of year?
The USGS median flow for mid-September here is 608 CFS, from 36 years of record (1973–2026). Today is 96% of it. The comparison is what makes the raw number mean anything: the same reading is a drought on one river and a flood on another.
How often does this reading update?
USGS transmits from gauge 13309220 every 15 to 60 minutes, and the National Weather Service reissues the flood forecast for MIDI1 a few times a day — more often when the river is rising. This page refreshes from both when you open it. The timestamp is in the gauge's local time.