RIVER GAUGE · LITTLE SIOUX RIVER
Little Sioux River near Spencer / Highway 18
Clay County, Iowa
Water level1316.37 ft
Flow0 cfs
Last readingSep 16, 2026, 5:00 PM UTC (last recorded)
Action1321 ft
Minor flood1322 ft
Moderate flood1324 ft
Major flood1328 ft
The past week
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What floods at each level
- 1332 ft
The Hwy 18 bridge is overtopped as is the bridge on 190th Ave
- 1330 ft
Water reaches the bottom of the bridge on Hwy 18 at the gage location. Water nears the feedhorn of the automated sensor and thus river level data may be lost.
- 1328 ft
Water begins to approach the low spots of Hwy 18 and 200th Ave south of Hwy 18 begins to flood.
- 1326 ft
200th Ave north of Hwy 18 begins to flood.
- 1322.5 ft
Most banks begin to be overtopped and overspill into nearby agricultural land.
- 1321 ft
The lowest banks begin to overflow.
Highest crests on record
| Date | Level | Flow |
|---|---|---|
| Jun 21, 2024 | 1328.17 ft | — |
| Jun 24, 2018 | 1326.6 ft | — |
| Mar 17, 2019 | 1325.5 ft | — |
More on Little Sioux River
UpstreamLittle Sioux River above Spencer
DownstreamLittle Sioux River at Spencer
Get an alert when Little Sioux River rises
Save this gauge in the free StormCast app and pick the level that matters to you. Your phone goes off when the water gets there.
