Search
Menu

Explore

Hazards

Analysis

Rankings

Reference

St. Marys River at Traders Hill

Highest listed crest 19.30 ftFlood stage 7.0 ft20 crests since 2017

The St. Marys River at Traders Hill crested at major flood stage 2 times among the 20 crests the National Weather Service lists from 2017 to 2026. The highest, 19.30 ft on September 15, 2017, was major flooding, 12.30 feet above flood stage. 3 other gauges on the St. Marys River crested above flood stage within a week of it.

The gauge

Highest listed crest
19.30 ft
September 15, 2017; 24,900 cubic feet per second
Flood stage
7.0 ft
Major flooding from 16.0 ft
Crests at major
2
52nd of 271 gauges in Georgia
Most recent flood crest
October 11, 2026
8.50 ft, minor flooding
Location
Charlton County
Near Kingsland (14.5 mi)

Flood stages

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

Flood categories, St. Marys River at Traders Hill
Action stage5.00—The level at which the NWS or its partners begin to take action
Flood stage (minor)7.016Oct 11, 2026Minimal or no property damage, but possibly some public threat
Moderate flood stage12.02Dec 23, 2023Some inundation of structures and roads near the stream
Major flood stage16.02Aug 10, 2024Extensive inundation of structures and roads

Every listed crest

20 crests from 2017 to 2026. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the St. Marys River at Traders Hill, 2017 to 2026 5101520ft Flood stage 7.0 ftMajor 16.0 ft Aug 12, 2017: 8.42 ft, minor flooding; 4,120 cubic feet per secondSep 15, 2017: 19.30 ft, major flooding; 24,900 cubic feet per secondAug 5, 2018: 7.59 ft, minor flooding; 3,590 cubic feet per secondDec 24, 2019: 7.30 ft, minor flooding; 3,410 cubic feet per secondJun 10, 2020: 7.82 ft, minor floodingJun 16, 2020: 11.76 ft, minor flooding; 6,300 cubic feet per secondAug 13, 2020: 7.42 ft, minor floodingAug 19, 2020: 8.94 ft, minor floodingSep 18, 2020: 7.25 ft, minor floodingFeb 21, 2021: 8.36 ft, minor floodingJul 13, 2021: 11.80 ft, minor flooding; 6,340 cubic feet per secondAug 11, 2021: 12.53 ft, moderate flooding; 9,670 cubic feet per secondMar 20, 2022: 8.70 ft, minor flooding; 6,250 cubic feet per secondSep 11, 2022: 7.08 ft, minor flooding; 5,150 cubic feet per secondDec 23, 2023: 12.33 ft, moderate floodingJan 17, 2024: 7.03 ft, minor floodingApr 12, 2024: 7.54 ft, minor floodingAug 10, 2024: 16.01 ft, major flooding; 15,400 cubic feet per secondMar 12, 2025: 7.18 ft, minor floodingOct 11, 2026: 8.50 ft, minor flooding Highest, 19.30 ft, Sep 15, 2017 20202025

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, St. Marys River at Traders Hill 2010s: 4 2020s: 16 16 2010s2020s
  1. 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.
  2. 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, St. Marys River at Traders Hill
1Sep 15, 201719.30+12.30Major24,900
2Aug 10, 202416.01+9.01Major15,400
3Aug 11, 202112.53+5.53Moderate9,670
4Dec 23, 202312.33+5.33Moderate—
5Jul 13, 202111.80+4.80Minor6,340
6Jun 16, 202011.76+4.76Minor6,300
7Aug 19, 20208.94+1.94Minor—
8Mar 20, 20228.70+1.70Minor6,250
9Oct 11, 20268.50+1.50Minor—
10Aug 12, 20178.42+1.42Minor4,120
11Feb 21, 20218.36+1.36Minor—
12Jun 10, 20207.82+0.82Minor—
13Aug 5, 20187.59+0.59Minor3,590
14Apr 12, 20247.54+0.54Minor—
15Aug 13, 20207.42+0.42Minor—
16Dec 24, 20197.30+0.30Minor3,410
17Sep 18, 20207.25+0.25Minor—
18Mar 12, 20257.18+0.18Minor—
19Sep 11, 20227.08+0.08Minor5,150
20Jan 17, 20247.03+0.03Minor—

The worst floods along the St. Marys River

For this gauge's highest crests, the other gauges on the St. Marys River that crested above flood stage within a week.

September 15, 2017: 19.30 ft here, major flooding

August 10, 2024: 16.01 ft here, major flooding

  • MacclennyFL · Aug 7, 2024 · 19.71 ft · Major
  • MoniacFL · Aug 8, 2024 · 14.65 ft · Minor

August 11, 2021: 12.53 ft here, moderate flooding

  • MacclennyFL · Aug 7, 2021 · 17.54 ft · Moderate
  • MoniacFL · Aug 7, 2021 · 15.53 ft · Moderate

Gauges on the St. Marys River

In USGS station-number order, which runs downstream within a river basin.

Flood gauges on the St. Marys River
MoniacFL12.022.98 ft, Apr 5, 19739
MacclennyFL12.024.38 ft, Jun 28, 201219
Traders Hill this gaugeGA7.019.30 ft, Sep 15, 20172
Interstate 95 (in MHHW)FL1.02.79 ft, Oct 7, 20160

Charlton County: every hazard · River floods across the country · Georgia

NOAA National Water Prediction Service, gauge SMTG1, 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.