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Upper Iowa River — Bluffton to Decorah: River Level Today — Can You Paddle It?

Class I14 mi · ~6 hrUpper Iowa RiverIowa

Verdict · updated Aug 27, 1:45 PM UTC

Good to paddle

Levels are within the typical runnable range for this section.

Estimated range

194 cfs

1.8 ft gauge height

USGS gauge 05387500

Runnable 1201,500 cfs

194 cfs, within the runnable range of 120 to 1,500 cfs
01201,5001,776

What this means today

At 194 cfs the Upper Iowa River is inside the runnable range but only 74 cfs above the 120 cfs floor, so it is sitting at the shallow end of what this reach runs at. A dry few days would take it under.

Over the last 24 hours it has barely moved, 198 cfs to 194 cfs. Daily means over the past 7 days have run between 195 cfs and 237 cfs, 18% lower at the end of the week than the start.

Paddling Bluffton to Decorah

Upper Iowa River at Bluffton to Decorah is a 14-mile Class I run in Iowa — easygoing moving water with light riffles and nothing technical. Most paddlers put in at Bluffton and take out at Decorah, a trip that runs about 6 hours at a relaxed pace.

Whether it's worth the drive comes down to flow. This section generally paddles well at 120–1,500 cfs (a conservative estimate — see our methodology). Much below that and the Upper Iowa River gets low and bony, so you end up scraping gravel and walking the shallows; well above the top of the range it turns fast, cold and pushy, which is a more serious day than most casual boaters want. We read USGS gauge 05387500 about every 30 minutes and compare the live number to that window, so the verdict at the top of this page reflects conditions right now rather than a monthly average.

Flows here are usually most dependable May–September. Spring can run high after rain or snowmelt, and late summer often drops too low to float well — but the gauge always beats the calendar, so check today's reading before you go.

7-day flow trend

1,5001201,63802026-08-20Today
Daily mean flow (cfs), past 7 days. Shaded band = runnable range.

Section facts

Difficulty
Class I
Length
14 mi
Float time
~6 hr
Best months
May–September
Put-in
Bluffton
Take-out
Decorah

Reading USGS gauge 05387500 — Upper Iowa River at Decorah, IA · runnable range is an estimate (see methodology)

FAQ

What water level is good for paddling Upper Iowa River — Bluffton to Decorah?
This section is generally runnable at 120–1,500 cfs (a conservative estimate — see our methodology). Below that it gets too low and bony; well above the top of the range it becomes pushy and then dangerous. We compare the live USGS reading to that range to produce today's verdict.
How do I check Upper Iowa River levels?
We read USGS gauge 05387500 — the same public data USGS publishes — about every 30 minutes and compare it to the runnable range for this reach. You can also view the raw gauge yourself at waterdata.usgs.gov.
Is Upper Iowa River — Bluffton to Decorah good for beginners?
This section is rated Class I. At good levels it suits confident beginners and up, but it can have riffles or small rapids. Scout anything you can't see, and stay off it at high water.
When is the best time to paddle Upper Iowa River here?
Typically May–September, when flows are most reliable for this section. Spring can run high after rain or snowmelt; late summer can drop too low. Always check today's gauge reading rather than assuming.
How long does it take to float Upper Iowa River — Bluffton to Decorah?
This reach is about 14 miles, roughly 6 hours at a relaxed pace. Higher water is faster; low water and headwinds are slower. Add time for stops.

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