Rock River — Janesville to Beloit: River Level Today — Can You Paddle It?
Verdict · updated Aug 27, 1:00 AM UTC
No runnable range yet
We don’t have a runnable range for this section yet — many of these are calm or dam-controlled reaches. Here’s the current gauge reading; check it (and, for tailwaters, the dam’s generation schedule) before you go.
Estimated range
1,340 cfs
3.8 ft gauge height
USGS gauge 05430500
What this means today
There is no published runnable range for this reach, so we won't grade the reading against one. What we can show is what the gauge itself is doing.
Daily average flow — a different measurement from the gauge height this reach is graded on — has run between 1,320 cfs and 1,730 cfs, 19% higher at the end of the week than the start.
Paddling Janesville to Beloit
Rock River at Janesville to Beloit is a 12.5-mile Flatwater float in Wisconsin — no rapids under normal flows, just moving water and the odd riffle. Most paddlers put in at Janesville landing and take out at Beloit landing, a trip that runs about 4 hours at a relaxed pace.
We track USGS gauge 05430500 for this reach, but there isn't a published runnable range for it yet, so we won't invent a firm number. Use the live reading and 7-day trend above to see whether the Rock River is rising or falling, and check with a local outfitter or paddling club before you commit to a launch.
Flows here are usually most dependable May–October. 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
Section facts
- Difficulty
- Flatwater
- Length
- 12.5 mi
- Float time
- ~4 hr
- Best months
- May–October
- Put-in
- Janesville landing
- Take-out
- Beloit landing
Reading USGS gauge 05430500 — ROCK RIVER AT AFTON, WI ↗ · runnable range is an estimate (see methodology)
FAQ
- What water level is good for paddling Rock River — Janesville to Beloit?
- We don't yet have a published runnable range for this section, so we can't give a firm number. Check the live USGS gauge and ask a local outfitter before you go.
- How do I check Rock River levels?
- We read USGS gauge 05430500 — 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 Rock River — Janesville to Beloit good for beginners?
- This is a flatwater section — no rapids under normal levels — so it's beginner-friendly when the gauge is in range. High water changes everything: cold, fast water is dangerous for anyone.
- When is the best time to paddle Rock River here?
- Typically May–October, 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 Rock River — Janesville to Beloit?
- This reach is about 12.5 miles, roughly 4 hours at a relaxed pace. Higher water is faster; low water and headwinds are slower. Add time for stops.