Rivers in Iowa
Mississippi River at Dubuque (LD11)
Below flood stage
7.54ftStage
Observed Wed, Sep 23, 5:30 AM CDT
- Flood stage
- 16.00 ft
- Forecast crest
- 7.70 ftWed, Sep 23, 7:00 AM CDT
- Record crest
- 25.69 ft1965
Flood stages and impacts
| Category | Stage |
|---|---|
| Major flood | 20.50 ft |
| Moderate flood | 17.00 ft |
| Minor flood | 16.00 ft |
| Action | 15.00 ft |
- 22.00 ftWater affects Volunteer Drive leading to Lock and Dam 11.
- 20.80 ftLock and Dam 11 is closed.
Flood outlook
Chance of flooding, September to November
| Category | Chance |
|---|---|
| Minor flooding | Under 5% |
| Moderate flooding | Under 5% |
| Major flooding | Under 5% |
The three-month chances are the River Forecast Centers’ long-range flood outlook, issued August 28, 2026.
Crest history
40 crests on NOAA’s list since 1938.
| # | Date | Stage |
|---|---|---|
| 1 | April 26, 1965 | 25.69 ft |
| 2 | April 21, 2001 | 23.91 ft |
| 3 | April 29, 2023 | 23.03 ft |
| 4 | July 1, 1993 | 22.32 ft |
| 5 | April 27, 2019 | 21.77 ft |
| 6 | April 23, 1969 | 21.74 ft |
| 7 | April 22, 1951 | 21.64 ft |
| 8 | April 25, 1952 | 21.57 ft |
| 9 | May 6, 1975 | 21.32 ft |
| 10 | April 19, 2011 | 21.24 ft |
| 11 | April 6, 2019 | 21.22 ft |
| 12 | April 16, 1997 | 21.22 ft |
| 13 | July 6, 2024 | 20.85 ft |
| 14 | April 11, 1967 | 20.45 ft |
| 15 | March 23, 1973 | 20.33 ft |
| 16 | October 5, 1986 | 20.05 ft |
| 17 | September 20, 1938 | 19.40 ft |
| 18 | May 31, 2019 | 19.19 ft |
| 19 | May 12, 1954 | 18.85 ft |
| 20 | June 13, 2008 | 18.56 ft |
| 21 | March 17, 1983 | 18.54 ft |
| 22 | July 4, 2014 | 18.46 ft |
| 23 | April 26, 2008 | 18.29 ft |
| 24 | June 12, 1942 | 18.20 ft |
| 25 | May 7, 2018 | 17.87 ft |
Most recent crests
- July 6, 2024: 20.85 ft
- April 29, 2023: 23.03 ft
- May 31, 2019: 19.19 ft
- April 27, 2019: 21.77 ft
- April 6, 2019: 21.22 ft
- May 7, 2018: 17.87 ft
- May 29, 2017: 17.04 ft
- September 30, 2016: 15.91 ft
- June 6, 2015: 11.23 ft
- July 4, 2014: 18.46 ft
Nearby
Upstream, downstream and the gauges around this one.
What this means
Forecasts by the North Central River Forecast Center. Forecasts are issued routinely year-round. River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 48 hours into the future from the forecast issuance time.
Sources
Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service.