Floyd River Flow Today
As of October 2, 2026 at 5:00 AM, the Floyd River is flowing at 302 cfs at James, IA — 205% of normal for the date and down 7% in 24 hours. 2 of 2 USGS gauges reported in the last 3 days; flows range from 146 to 302 cfs. ❤ Favorite
Floyd River map
See the Floyd River on a live map
Every gauge, dam and paddle run on the river, one tap each:
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Floyd River conditions today
Where the river is running versus normal, what’s rising or dropping, and what it means for a trip — built from the live USGS readings below.
At James, the Floyd River is running 302 cfs — 205% of normal, down 7% since yesterday. Along the river, 2 of 2 reporting gauges are above normal (the typical gauge is at 383% of normal).
In the last 24 hours the river is dropping at Alton (-16%).
How the Floyd River compares to normal
Every reporting gauge from the top of the river to the bottom: bar length is today’s flow, colour is percent of normal for the date.
Flow along the river, upstream to downstream
- Alton1,289 ft 146 cfs562%
- James1,117 ft 302 cfs205%
Bar length uses a square-root scale so small headwater flows stay visible next to big downstream ones. Colour: <50% 50–90 90–110 110–150 150%+ of normal.
Where every gauge sits
One dot per Floyd River streamgauge, placed by its own percent of normal. The line is the typical gauge (383%).
Floyd River flow report
| Streamgage | Streamflow | % of normal | 24h | Gage height | To flood stage | Elevation |
|---|---|---|---|---|---|---|
|
Floyd River At Alton IA
Oct 2, 5:00 AM · USGS 06600100 |
146 cfs | 562% | -16% | 6.18 ft | 5.8 ft below | 1,289 ft |
|
Floyd River At James IA
Oct 2, 5:00 AM · USGS 06600500 |
302 cfs | 205% | -7% | 8.83 ft | 17.2 ft below | 1,117 ft |
USGS provisional data. Readings are in each gauge’s local time; gauges silent for more than 3 days are marked “Last reported”. Tap any gauge for its hydrograph, forecast and history.
Dams & reservoirs on the Floyd River
Releases from these dams shape the flow downstream. Tap one for its daily level and history.
Floyd River streamflow over time
Daily total flow across every monitored gauge on the river.
Maximum streamflow by year
Floyd River
The Floyd River runs through Iowa and South Dakota, covering a length of 111 miles. It was named after Charles Floyd, a member of the Lewis and Clark Expedition who died near its banks in 1804. The river has experienced multiple flooding events over the years, causing significant damage to the surrounding areas. To prevent future flooding, several dams and reservoirs have been constructed, including the Union County Dam, the Akron Impoundment, and the Alcester Dam. These structures regulate water flow and provide a source of water for agriculture and recreation. The Floyd River basin is primarily used for farming, with crops such as corn and soybeans being grown in the fertile soil. The river also offers recreational activities such as fishing, tubing, and kayaking.
About the Floyd River
How is the Floyd River flowing right now?
As of October 2, 2026, the Floyd River is flowing at 302 cfs at James, IA, about 205% of normal for the date. Across its 2 USGS gauges, current flows range from 146 to 302 cfs. Every gauge’s live reading is in the table above.
Is the Floyd River running high or low?
The typical gauge on the Floyd River is at 383% of normal for the date. Above 100% means higher than the historical average for this calendar day; below 100% means lower. The profile above shows which reaches are high or low.
What is flood stage on the Floyd River?
The National Weather Service sets flood stages for Alton (12.0 ft), James (26.0 ft). The table shows how far each gauge is below its flood stage right now.
Where does the data come from?
Discharge and gage height are from the USGS National Water Information System; flood stages from the National Weather Service. The history chart sums every monitored gauge on the river.
Can I get alerts for a gauge?
Yes — open any gauge from the table, favorite it in the Snoflo app and set a flow threshold.