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Rock River (Illinois), Como (05443500)

State	Illinois	Latest	Unknown (13300 cfs)
River	Rock River	Rating	Observed	Estimated
Updated	2026-06-17 5:45 (30 minutes ago)	Flood - The river is flooding. Obstacles can be treacherous or deadly. The river should be avoided at this stage for casual trips and definitely for the inexperienced. Trips should be attempted only with protective gear and equipment.Flood	(none)	(none)
Discharge	13300 cfs (median: 6050 cfs)	High - The river is high and potentially dangerous, especially for the young and / or inexperienced. Normal stream obstacles are sometimes difficult to navigate. Extended distances can be attempted, but canoe travel may not be advisable.High	(none)	(none)
Height	7.52 feet	Good - Conditions are ideal for a canoe or kayak. Boats typically will drag on fewer than one-quarter of riffles, if at all, and portages are unnecessary or rare. Normal float lengths can be attempted without a problem.Good	(none)	(none)
Trend	Steady (falling over 24 hours)	Low - River is low but can still be floated. Some riffles are okay but most come with significant dragging and might need a portage. Float lengths should be reduced to accommodate low flow, dragging, and portages.Low	(none)	(none)
USGS	USGS Site ( Duck Duck Go Maps)	Poor - River is too low to float comfortably. Most or all riffles will drag or must be portaged and some obstacles (such as slick shelf rock) cause undue problems. Avoid the river at this stage for casual paddling trips.Poor	(none)	(none)

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Trips for Rock River (Illinois), Como (05443500)

	Date	Start	End	Distance	Condition	Discharge	Height	Fishing	Details
	2008-06-01	Castle Rock State Park	Grand Detour (Dixon)	Total trip distance: 12.0 miles7.0	Good	11900	5.55	None	None Brent's Bachelor Party No notes for this trip USGS Gauge Data: Como (05443500) Discharge: 11900 Height: 5.55 Source: Fillmore
	2008-05-31	TJ's Canoe Rental (Oregon)	Castle Rock State Park	Total trip distance: 12.0 miles5.0	Good	11500	5.44	None	None Brent's Bachelor Party No notes for this trip USGS Gauge Data: Como (05443500) Discharge: 11500 Height: 5.44 Source: Fillmore

A total of 2 rows are displayed.

Trip Summary for Rock River (Illinois), Como (05443500)

Condition Descriptions

Fishing Conditions

Fish Species

Notes

Classic Trip List

Gauge Data Table