Mississippi River at Saverton Lock and Dam 22
Critical Stages
14' - Action
16' - Flood
20' - Moderate
24' - Major
Latest Observation
Updated: 8:00 PM CST 12/15/25
Status: No Flooding
Stage: 4.25 ft
Flow: 36 kcfs
Forecast
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 12 AM 12/16 | 4.3 | 36.8 |
| 6 AM 12/16 | 4.3 | 36.8 |
| 12 PM 12/16 | 4.2 | 35.2 |
| 6 PM 12/16 | 4.1 | 33.6 |
| 12 AM 12/17 | 4.1 | 33.6 |
| 6 AM 12/17 | 4 | 32 |
| 12 PM 12/17 | 4 | 32 |
| 6 PM 12/17 | 3.9 | 29.4 |
| 12 AM 12/18 | 3.9 | 29.4 |
| 6 AM 12/18 | 3.9 | 29.4 |
| 12 PM 12/18 | 3.9 | 29.4 |
| 6 PM 12/18 | 3.9 | 29.4 |
| 12 AM 12/19 | 3.9 | 29.4 |
| 6 AM 12/19 | 3.9 | 29.4 |
| 12 PM 12/19 | 3.9 | 29.4 |
| 6 PM 12/19 | 3.8 | 26.9 |
| 12 AM 12/20 | 3.8 | 26.9 |
| 6 AM 12/20 | 3.8 | 26.9 |
| 12 PM 12/20 | 3.8 | 26.9 |
| 6 PM 12/20 | 3.8 | 26.9 |
| 12 AM 12/21 | 3.8 | 26.9 |
| 6 AM 12/21 | 3.8 | 26.9 |
| 12 PM 12/21 | 3.9 | 29.4 |
| 6 PM 12/21 | 3.9 | 29.4 |
| 12 AM 12/22 | 3.9 | 29.4 |
| 6 AM 12/22 | 3.9 | 29.4 |
| 12 PM 12/22 | 3.9 | 29.4 |
| 6 PM 12/22 | 3.9 | 29.4 |
| 12 AM 12/23 | 3.9 | 29.4 |
| 6 AM 12/23 | 3.9 | 29.4 |
| 12 PM 12/23 | 3.9 | 29.4 |
| 6 PM 12/23 | 3.9 | 29.4 |
| 12 AM 12/24 | 3.9 | 29.4 |
| 6 AM 12/24 | 3.9 | 29.4 |
| 12 PM 12/24 | 3.9 | 29.4 |
| 6 PM 12/24 | 3.9 | 29.4 |
| 12 AM 12/25 | 3.9 | 29.4 |
| 6 AM 12/25 | 3.9 | 29.4 |
| 12 PM 12/25 | 3.9 | 29.4 |
| 6 PM 12/25 | 3.9 | 29.4 |
| 12 AM 12/26 | 3.9 | 29.4 |
| 6 AM 12/26 | 3.9 | 29.4 |
| 12 PM 12/26 | 3.9 | 29.4 |
| 6 PM 12/26 | 3.9 | 29.4 |
| 12 AM 12/27 | 3.9 | 29.4 |
| 6 AM 12/27 | 3.8 | 26.9 |
| 12 PM 12/27 | 3.8 | 26.9 |
| 6 PM 12/27 | 3.8 | 26.9 |
| 12 AM 12/28 | 3.8 | 26.9 |
| 6 AM 12/28 | 3.8 | 26.9 |
| 12 PM 12/28 | 3.8 | 26.9 |
| 6 PM 12/28 | 3.8 | 26.9 |
| 12 AM 12/29 | 3.8 | 26.9 |
| 6 AM 12/29 | 3.8 | 26.9 |
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 8:30 PM 12/15 | 4.25 | 36 |
| 8:20 PM 12/15 | 4.25 | 36 |
| 8:10 PM 12/15 | 4.26 | 36.2 |
| 8:00 PM 12/15 | 4.25 | 36 |
| 7:50 PM 12/15 | 4.25 | 36 |
| 7:40 PM 12/15 | 4.25 | 36 |
| 7:30 PM 12/15 | 4.25 | 36 |
| 7:20 PM 12/15 | 4.27 | 36.3 |
| 7:10 PM 12/15 | 4.27 | 36.3 |
| 7:00 PM 12/15 | 4.27 | 36.3 |
| 6:50 PM 12/15 | 4.27 | 36.3 |
| 6:40 PM 12/15 | 4.27 | 36.3 |
| 6:30 PM 12/15 | 4.29 | 36.7 |
| 6:20 PM 12/15 | 4.29 | 36.7 |
| 6:10 PM 12/15 | 4.29 | 36.7 |
| 6:00 PM 12/15 | 4.29 | 36.7 |
| 5:50 PM 12/15 | 4.25 | 36 |
| 5:40 PM 12/15 | 4.28 | 36.5 |
| 5:30 PM 12/15 | 4.29 | 36.7 |
| 5:20 PM 12/15 | 4.25 | 36 |
| 5:10 PM 12/15 | 4.25 | 36 |
| 5:00 PM 12/15 | 4.15 | 34.4 |
| 4:50 PM 12/15 | 4.3 | 36.8 |
| 4:40 PM 12/15 | 4.28 | 36.5 |
| 4:30 PM 12/15 | 4.3 | 36.8 |
| 4:20 PM 12/15 | 4.3 | 36.8 |
| 4:10 PM 12/15 | 4.31 | 37 |
| 4:00 PM 12/15 | 4.32 | 37.2 |
| 3:50 PM 12/15 | 4.33 | 37.3 |
| 3:40 PM 12/15 | 4.34 | 37.5 |
160000' -
At this approximate discharge, the Corps will raise the gates out of the water, creating "open river" conditions.
28.6' -
Water enters the elevated flood building north of the lock house.
28' -
In Monkey Run, at least a dozen homes are flooded at this level.
27.8' -
Saverton homes begin flooding near this level.
27.3' -
The work shop building at Lock and Dam #22 begins flooding at this height.
27' -
Sny Island Cell #1 levee is overtopped
26' -
In Monkey Run (north of Saverton), houses begin flooding near this level.
25.7' -
Water enters Lock house north door and the railroad tracks crossing.
25.5' -
Homes in Riverview Acres (just south of the lock and dam) begin to flood. Also, North Saverton Road floods near this height.
25.2' -
Missouri Route E becomes impassable and is closed from Saverton Road near the Hascall Creek bridge to Lock and Dam 22.
24.5' -
Highway 79 is closed at the Continental Cement Plant.
24.2' -
Missouri Route E begins flooding at the lowest points.
21.8' -
At this height, the ties of the BNSF railroad tracks begin flooding.
21.4' -
Near this level, the lock is closed to navigation. This level will vary with circumstance. Also, BNSF railroad tracks just south of Hannibal are flooded.
15.5' -
An access road to riverside raised homes on the riverward side of the Sny levee begins to flood near this level.
13.5' -
This is the upper navigational limit for the pool at Lock & Dam 22.
13.4' -
This is the target pool for navigation at Lock & Dam 22.
13' -
This is the lower navigational limit for the pool at Lock & Dam 22.
12' -
Buildings in unprotected areas are damaged. At this approximate stage, the Corps will lift all gates out of the river, creating "open river" conditions. This takes place at a discharge of around 160,000 cfs.
| Date | Stage (ft) |
|---|---|
| Jul 25, 1993 | 29.58 |
| Jun 2, 2019 | 28.48 |
| Jun 2, 2019 | 28.47 |
| Jun 18, 2008 | 28 |
| Apr 25, 1973 | 26.8 |
| Apr 21, 2013 | 26.42 |
| May 16, 2001 | 26.12 |
| Jul 8, 2014 | 25.78 |
| Jun 1, 2013 | 24.62 |
| Oct 5, 1986 | 24.1 |
| Oct 12, 2018 | 23.93 |
| May 30, 1996 | 23.68 |
| Apr 5, 1983 | 23.4 |
| May 1, 1965 | 23.26 |
| Apr 27, 1993 | 23.04 |
| Apr 15, 1998 | 22.99 |
| Jun 28, 2015 | 22.91 |
| Jun 10, 1947 | 22.76 |
| Jun 17, 2011 | 22.65 |
| Apr 28, 2001 | 22.6 |
Data provided by the National Weather Service.
