Mill Swamp at Richlands
Highest listed crest 15.47 ftFlood stage 13.0 ft3 crests since 2018
The Mill Swamp at Richlands crested above flood stage 1 time among the 3 crests the National Weather Service lists from 2018 to 2024. The highest, 15.47 ft on September 15, 2018, was minor flooding, 2.47 feet above flood stage.
The gauge
- Highest listed crest
- 15.47 ft
- September 15, 2018
- Flood stage
- 13.0 ft
- No major stage set
- Crests at major
- 0
- 1 above flood stage
- Most recent flood crest
- September 15, 2018
- 15.47 ft, minor flooding
Flood stages
The thresholds the National Weather Service uses for this gauge today, and how many listed crests reached each.
| Flood stage (minor) | 13.0 | 1 | Sep 15, 2018 |
Every listed crest
3 crests from 2018 to 2024. 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 | Sep 15, 2018 | 15.47 | +2.47 | Minor |
| 2 | Sep 17, 2024 | 10.70 | −2.30 | Below flood stage |
| 3 | Dec 28, 2023 | 10.16 | −2.84 | Below flood stage |
Other gauges in Onslow County
| Jacksonville (in MLLW) | 7.70 ft, Sep 16, 2018 | 1 |
| Gum Branch | 25.76 ft, Sep 15, 2018 | 2 |
Onslow County: every hazard · River floods across the country · North Carolina
NOAA National Water Prediction Service, gauge RCLN7, 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.