Rock River near Joslin, IL
River level and flood forecast · Rock Island County
Normal7.9 ftas of Mon 1:45 PM
The river is 4.1 ft below flood stage (12 ft).
Forecast to fall to 7.1 ft by Mon, Oct 19, 7 AM.
Flow: 8,730 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Mon, Oct 12, 8:23 AM. Forecasts change as rain falls and as upstream water arrives.
Flood stages
| Major flood stage | 16.5 ft |
| Moderate flood stage | 14 ft |
| Flood stage | 12 ft |
| Action stage | 11 ft |
| Record crest (June 7, 2002) | 19.24 ft |
What floods at each level
From the National Weather Service, highest first.
- 21 ftWater affects most of Hillsdale and much of Erie. Water also reaches the bottom of the Illinois Highway 92 bridge at Joslin.
- 20 ftWater affects several homes in Erie and affects the railroad tracks east of town.
- 19.5 ftWater affects much of Barstow Road between Barstow and Illinois Highway 5.
- 19.2 ftWater affects Barstow Road between Barstow and Illinois Highway 5.
- 19 ftWater affects several homes in Hillsdale on Docia Street and on the county road south of town. Water also affects most houses in Osborn.
- 18.5 ftWater affects the lowest sections of Moline Road east of Erie, as well as River Road.
- 18.39 ftWater affects Osborn Road at Osborn.
- 18.3 ftWater affects the railroad tracks near Osborn.
- 18 ftWater reaches the top of the Zuma Creek levee upstream of Barstow. Water also affects a few homes in Erie and Moline Road east of town. Water affects a few homes on Docia Street in Hillsdale and on the county road south of town. Water also affects a few homes in Shady Beach.
- 17.7 ftWater affects the railroad tracks south of Prophetstown.
- 17.5 ftWater is across Broadway at Jackson Street in Cleveland.
- 16.5 ftWater affects the lowest sections of Broadway and Main Street in Cleveland and affects a few homes.
- 16 ftWater affects much of Barstow Road between Barstow and Osborn. Water also affects homes in Osborn.
- 15 ftWater affects residences in the Thompson addition.
- 14 ftWater affects residences in outlying areas immediately along the river including basements, yards, driveways, and access roads.
- 13.7 ftWater affects Barstow Road between Barstow and Osborn.
- 13 ftFlooding of unprotected agricultural land occurs. Water also affects Lundeens Landing Campground.
- 12.5 ftWater affects some summer cottages along the river.
- 12 ftWater affects low lying agricultural land.
Highest crests on record
- 19.24 ft — June 7, 2002
- 19.11 ft — April 21, 2013
- 18.88 ft — February 23, 1997
- 18.73 ft — May 31, 1996
- 18.55 ft — June 16, 2000
Recent crests: 16.16 ft (April 22, 2026) · 15.94 ft (July 19, 2024) · 12.3 ft (March 2, 2023) · 15.08 ft (May 21, 2020) · 12.01 ft (May 3, 2020)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (JOSI2); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.