Cahaba River near Cahaba Heights
Highest listed crest 28.86 ftFlood stage 14.0 ft41 crests since 1976
The Cahaba River near Cahaba Heights crested at major flood stage 3 times among the 41 crests the National Weather Service lists from 1976 to 2021. The highest, 28.86 ft on April 13, 1979, was major flooding, 14.86 feet above flood stage. 4 other gauges on the Cahaba River crested above flood stage within a week of it, 1 at its own highest listed crest.
The gauge
- Highest listed crest
- 28.86 ft
- April 13, 1979; 23,400 cubic feet per second
- Flood stage
- 14.0 ft
- Major flooding from 24.0 ft
- Crests at major
- 3
- 23rd of 89 gauges in Alabama
- Most recent flood crest
- October 7, 2021
- 17.13 ft, minor flooding
Flood stages
The thresholds the National Weather Service uses for this gauge today, and how many listed crests reached each.
| Action stage | 14.0 | 0 | — |
| Flood stage (minor) | 14.0 | 28 | Oct 7, 2021 |
| Moderate flood stage | 22.0 | 5 | Apr 7, 2014 |
| Major flood stage | 24.0 | 3 | May 8, 2003 |
Every listed crest
41 crests from 1976 to 2021. 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
| 1 | Apr 13, 1979 | 28.86 | +14.86 | Major |
| 2 | May 8, 2003 | 27.91 | +13.91 | Major |
| 3 | Jun 29, 1999 | 24.00 | +10.00 | Major |
| 4 | Sep 17, 2004 | 23.95 | +9.95 | Moderate |
| 5 | Apr 7, 2014 | 23.58 | +9.58 | Moderate |
| 6 | Nov 24, 2004 | 23.24 | +9.24 | Moderate |
| 7 | Apr 4, 2000 | 22.28 | +8.28 | Moderate |
| 8 | Jan 8, 1998 | 22.02 | +8.02 | Moderate |
| 9 | Mar 4, 1979 | 21.92 | +7.92 | Minor |
| 10 | Apr 4, 2001 | 21.88 | +7.88 | Minor |
| 11 | Apr 5, 1977 | 21.67 | +7.67 | Minor |
| 12 | Dec 1, 1982 | 21.50 | +7.50 | Minor |
| 13 | Mar 16, 1976 | 20.70 | +6.70 | Minor |
| 14 | Dec 3, 1983 | 20.33 | +6.33 | Minor |
| 15 | Dec 28, 2018 | 19.65 | +5.65 | Minor |
| 16 | May 20, 1983 | 19.34 | +5.34 | Minor |
| 17 | May 19, 2003 | 19.29 | +5.29 | Minor |
| 18 | May 18, 2013 | 19.28 | +5.28 | Minor |
| 19 | Feb 6, 2004 | 18.97 | +4.97 | Minor |
| 20 | Mar 9, 2011 | 18.31 | +4.31 | Minor |
| 21 | Sep 4, 2001 | 18.30 | +4.30 | Minor |
| 22 | Mar 31, 1976 | 18.04 | +4.04 | Minor |
| 23 | Mar 27, 1980 | 17.89 | +3.89 | Minor |
| 24 | Oct 7, 2021 | 17.13 | +3.13 | Minor |
| 25 | Dec 26, 2015 | 17.07 | +3.07 | Minor |
| 26 | Feb 7, 2006 | 16.32 | +2.32 | Minor |
| 27 | Nov 28, 1983 | 16.21 | +2.21 | Minor |
| 28 | Mar 13, 1980 | 15.98 | +1.98 | Minor |
| 29 | Jun 15, 1997 | 15.86 | +1.86 | Minor |
| 30 | Jan 4, 2015 | 15.28 | +1.28 | Minor |
| 31 | Dec 28, 1983 | 15.27 | +1.27 | Minor |
| 32 | Apr 15, 2018 | 15.23 | +1.23 | Minor |
| 33 | Sep 22, 2002 | 15.11 | +1.11 | Minor |
| 34 | Mar 21, 1980 | 14.92 | +0.92 | Minor |
| 35 | Aug 1, 2013 | 14.78 | +0.78 | Minor |
| 36 | Feb 3, 2016 | 14.14 | +0.14 | Minor |
| 37 | Jun 4, 1982 | 13.54 | −0.46 | Below flood stage |
| 38 | Aug 26, 2008 | 12.81 | −1.19 | Below flood stage |
| 39 | Jan 27, 2012 | 12.62 | −1.38 | Below flood stage |
| 40 | Apr 3, 2017 | 12.45 | −1.55 | Below flood stage |
| 41 | Mar 6, 2003 | 11.13 | −2.87 | Below flood stage |
The worst floods along the Cahaba River
For this gauge's highest crests, the other gauges on the Cahaba River that crested above flood stage within a week.
April 13, 1979: 28.86 ft here, major flooding
- Marion JunctionAL · Apr 15, 1979 · 41.13 ft · Moderate
- SuttleAL · Apr 15, 1979 · 41.55 ft · Minor
- CentrevilleAL · Apr 13, 1979 · 35.03 ft · Minor
- West BloctonAL · Apr 13, 1979 · 19.97 ft · Minor · its highest
September 17, 2004: 23.95 ft here, moderate flooding
- CentrevilleAL · Sep 18, 2004 · 23.73 ft · Minor
April 7, 2014: 23.58 ft here, moderate flooding
- SuttleAL · Apr 10, 2014 · 37.18 ft · Minor
- Marion JunctionAL · Apr 11, 2014 · 36.81 ft · Minor
- CentrevilleAL · Apr 7, 2014 · 32.23 ft · Minor
Gauges on the Cahaba River
In USGS station-number order, which runs downstream within a river basin.
| Cahaba Heights this gauge | AL | 28.86 ft, Apr 13, 1979 | 3 |
| West Blocton | AL | 19.97 ft, Apr 13, 1979 | 0 |
| Centreville | AL | 36.70 ft, Mar 28, 1902 | 0 |
| Suttle | AL | 44.00 ft, Feb 25, 1961 | 0 |
| Marion Junction | AL | 43.80 ft, Feb 24, 1961 | 1 |
Other gauges in Shelby County
| Indian Trail Road | 12.28 ft, Oct 6, 2021 | 0 |
| Pelham | 18.18 ft, Oct 6, 2021 | 1 |
| Childersburg | 412.86 ft, Feb 23, 1961 | 6 |
Shelby County: every hazard · River floods across the country · Alabama
NOAA National Water Prediction Service, gauge CHGA1, 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.