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South Branch Ralston Creek at Iowa City — water level right now

Johnson County, Iowa · NWS gauge IACI4
Loading the latest reading…
–
current stage (ft)
 
7
minor flood stage
 
10.5
record crest
set 1962-07-14
–
flood status
official NWS category
Official NOAA forecast → USGS data → Full US flood map →

Flood stages at this gauge

Where the water stands right now against the four official thresholds:

action · 6
minor · 7
Flood stageLevel (ft)What it means
Minor flood stage7low-lying roads and fields near the river start to flood
Action stage6water is approaching flood level — time to pay attention

Highest floods on record here

#Crest (ft)Datevs. minor flood stage
110.51962-07-14+3.5 above
29.642018-10-06+2.64 above
39.482012-05-03+2.48 above
49.471972-07-17+2.47 above
59.431993-08-10+2.43 above
69.42014-06-30+2.4 above
78.891993-07-05+1.89 above
88.781967-06-07+1.78 above
98.521969-07-08+1.52 above
108.41993-08-16+1.4 above
118.32018-06-21+1.3 above
128.222018-08-28+1.22 above

Historic crests recorded at this gauge by the National Weather Service — the 12 highest on file.

Where this gauge is

The marker is this gauge; nearby gauges load live and are clickable.

Nearby river gauges

Iowa River at Iowa City 2 mi away · loading… Rapid Creek (IA) near Iowa City 4 mi away · loading… Clear Creek (IA) near Coralville 5 mi away · loading… Iowa River above Coralville Dam 5 mi away · loading… Old Mans Creek near Iowa City 6 mi away · loading… Clear Creek (IA) near Oxford 13 mi away · loading…

Gauge details

NWS gauge IDIACI4
USGS site05455010
CountyJohnson
StateIowa
NWS forecast officeDavenport
River forecast centerNorth Central River Forecast Center
Coordinates41.651, -91.507
Time zoneCST6CDT
Turn Around, Don't Drown. Six inches of moving water can knock you off your feet and twelve inches can float a car. Never drive around barricades or into water of unknown depth — most flood deaths happen in vehicles.

Questions about South Branch Ralston Creek at Iowa City

Is South Branch Ralston Creek at Iowa City flooding right now?

The live reading at the top of this page answers that: the gauge is compared against its official NWS flood stages every 15 minutes. Minor flooding at this gauge begins at 7 ft. Blue means normal, yellow is action stage, orange minor, red moderate and dark red major flooding.

What is flood stage for South Branch Ralston Creek at Iowa City?

minor flood stage 7 ft, action stage 6 ft. These are official National Weather Service thresholds set specifically for this gauge, not generic values.

What is the record flood at South Branch Ralston Creek at Iowa City?

The highest crest on file at this gauge is 10.5 ft, reached on 1962-07-14 — that is 3.5 ft above minor flood stage. The full list of the highest crests is in the table on this page.

Where does this data come from?

From the NOAA National Water Prediction Service, the official U.S. river gauge network — a U.S. government work in the public domain. Live stage is refreshed every 15 minutes; flood thresholds and historic crests are refreshed monthly. For life-safety decisions follow NWS Davenport and local emergency management.