West Branch Du Page River at Naperville (Fawell Dam)

Highest listed crest 692.10 ftFlood stage 686.5 ft11 crests since 1950

The West Branch Du Page River at Naperville (Fawell Dam) crested at major flood stage 1 time among the 11 crests the National Weather Service lists from 1950 to 2010. The highest, 692.10 ft on September 14, 2008, was major flooding, 5.60 feet above flood stage. 1 other gauge on the West Branch Du Page River crested above flood stage within a week of it, 1 at its own highest listed crest.

The gauge

Highest listed crest: 692.10 ft; September 14, 2008
Flood stage: 686.5 ft; Major flooding from 690.5 ft
Crests at major: 1; 101st of 177 gauges in Illinois
Most recent flood crest: July 25, 2010; 687.30 ft, minor flooding
Location: DuPage County; Near Warrenville (2.5 mi), Naperville (2.6 mi), Lisle (4.7 mi)
Identifiers: NWS NFDI2; USGS 414702088104801

Flood stages

The thresholds the National Weather Service uses for this gauge today, and how many listed crests reached each.

Flood categories, West Branch Du Page River at Naperville (Fawell Dam)

Action stage	680.0	8	Feb 22, 1997	The level at which the NWS or its partners begin to take action
Flood stage (minor)	686.5	2	Jul 25, 2010	Minimal or no property damage, but possibly some public threat
Moderate flood stage	688.5	0	—	Some inundation of structures and roads near the stream
Major flood stage	690.5	1	Sep 14, 2008	Extensive inundation of structures and roads

Every listed crest

11 crests from 1950 to 2010. Filled: at or above flood stage. Hover a crest for its date and stage.

Crests at or above flood stage, by decade

These are the crests the local National Weather Service office lists for the gauge: the highest on record and recent crests. Lesser floods between them may be missing, so counts by decade are a floor.
Categories use today's flood stages. Levees, dams and channel changes since a crest can make old and new stages not directly comparable.

Highest crests

Highest listed crests, West Branch Du Page River at Naperville (Fawell Dam)

1	Sep 14, 2008	692.10	+5.60	Major	—
2	Aug 27, 1987	687.70	+1.20	Minor	—
3	Jul 25, 2010	687.30	+0.80	Minor	—
4	Dec 3, 1982	686.20	−0.30	Action	—
5	Jul 18, 1996	685.72	−0.78	Action	—
6	Feb 20, 1979	685.70	−0.80	Action	—
7	Feb 14, 1984	684.00	−2.50	Action	—
8	Feb 22, 1997	682.98	−3.52	Action	—
9	Oct 10, 1954	682.80	−3.70	Action	—
10	Nov 20, 1985	682.34	−4.16	Action	—
11	Apr 25, 1950	680.80	−5.70	Action	—

The worst floods along the West Branch Du Page River

For this gauge's highest crests, the other gauges on the West Branch Du Page River that crested above flood stage within a week.

September 14, 2008: 692.10 ft here, major flooding

West ChicagoIL · Sep 13, 2008 · 12.28 ft · Major · its highest

July 25, 2010: 687.30 ft here, minor flooding

West ChicagoIL · Jul 24, 2010 · 11.17 ft · Major

Gauges on the West Branch Du Page River

Flood gauges sharing the river's name, linked within 80 miles of one another.

Flood gauges on the West Branch Du Page River

West Chicago	IL	7.0	12.28 ft, Sep 13, 2008	4
Warrenville	IL	12.5	17.08 ft, Apr 18, 2013	0
Naperville (Webster St)	IL	667.0	672.00 ft, Apr 19, 2013	0
Naperville (Fawell Dam) this gauge	IL	686.5	692.10 ft, Sep 14, 2008	1

Other gauges in DuPage County

Flood gauges in DuPage County

Lisle	13.0	17.50 ft, Apr 18, 2013	1
Downers Grove	14.5	17.79 ft, Apr 18, 2013	3
West Chicago	6.5	9.37 ft, Sep 14, 2008	0
Elmhurst	11.0	15.83 ft, Aug 27, 1972	1
Oak Brook	54.0	57.40 ft, Apr 18, 2013	0
Wood Dale	12.5	16.58 ft, Sep 14, 2008	2
Lemont	14.0	17.53 ft, Jul 18, 1996	0
Lisle	11.0	15.20 ft, Jul 1, 1957	3
Naperville (Webster St)	667.0	672.00 ft, Apr 19, 2013	0
Warrenville	12.5	17.08 ft, Apr 18, 2013	0
West Chicago	7.0	12.28 ft, Sep 13, 2008	4

DuPage County: every hazard · River floods across the country · Illinois

NOAA National Water Prediction Service, gauge NFDI2, retrieved October 30, 2026. Stages in feet on the gauge's own datum, not elevation. Crests are as the National Weather Service lists them; preliminary values may be revised.