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Atlantic Intracoastal Waterway above Aiw At Hwy 544 At Socastee

Highest listed crest 21.83 ftFlood stage 15.0 ft68 crests since 1999

The Atlantic Intracoastal Waterway above Aiw At Hwy 544 At Socastee crested at major flood stage 3 times among the 68 crests the National Weather Service lists from 1999 to 2024. The highest, 21.83 ft on September 27, 2018, was major flooding, 6.83 feet above flood stage.

The gauge

Highest listed crest
21.83 ft
September 27, 2018
Flood stage
15.0 ft
Major flooding from 18.0 ft
Crests at major
3
18th of 79 gauges in South Carolina
Most recent flood crest
August 21, 2024
16.73 ft, moderate flooding
Location
Horry County
Near Myrtle Beach (7.0 mi), Conway (10.5 mi)

Flood stages

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

Flood categories, Atlantic Intracoastal Waterway above Aiw At Hwy 544 At Socastee
Action stage14.515Sep 30, 2022The level at which the NWS or its partners begin to take action
Flood stage (minor)15.011Dec 17, 2023Minimal or no property damage, but possibly some public threat
Moderate flood stage16.55Aug 21, 2024Some inundation of structures and roads near the stream
Major flood stage18.03Feb 27, 2021Extensive inundation of structures and roads

Every listed crest

68 crests from 1999 to 2024. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Atlantic Intracoastal Waterway above Aiw At Hwy 544 At Socastee, 1999 to 2024 121416182022ft Flood stage 15.0 ftMajor 18.0 ft Sep 29, 1999: 15.76 ft, minor floodingOct 7, 1999: 14.79 ft, action stageOct 18, 1999: 14.71 ft, action stageOct 26, 1999: 14.57 ft, action stageSep 18, 2000: 14.05 ft, below flood stageMar 21, 2001: 14.17 ft, below flood stageMar 30, 2002: 13.03 ft, below flood stageOct 16, 2002: 13.53 ft, below flood stageMar 21, 2003: 14.80 ft, action stageApr 2, 2003: 14.93 ft, action stageApr 9, 2003: 14.12 ft, below flood stageApr 22, 2003: 16.03 ft, minor floodingSep 21, 2004: 14.58 ft, action stageOct 13, 2004: 13.68 ft, below flood stageOct 7, 2005: 13.80 ft, below flood stageDec 6, 2006: 14.22 ft, below flood stageJan 1, 2007: 13.48 ft, below flood stageSep 6, 2008: 14.05 ft, below flood stageOct 25, 2008: 13.74 ft, below flood stageDec 19, 2009: 14.43 ft, below flood stageJan 30, 2010: 13.61 ft, below flood stageFeb 6, 2010: 14.44 ft, below flood stageFeb 15, 2010: 14.39 ft, below flood stageSep 30, 2010: 14.12 ft, below flood stageOct 8, 2010: 13.68 ft, below flood stageAug 27, 2011: 13.19 ft, below flood stageJun 7, 2012: 13.38 ft, below flood stageJun 22, 2013: 13.70 ft, below flood stageJul 18, 2013: 14.50 ft, action stageMar 7, 2014: 13.94 ft, below flood stageJan 24, 2015: 13.82 ft, below flood stageOct 5, 2015: 16.50 ft, moderate floodingOct 12, 2015: 16.80 ft, moderate floodingOct 28, 2015: 14.05 ft, below flood stageNov 10, 2015: 14.04 ft, below flood stageNov 15, 2015: 14.23 ft, below flood stageNov 22, 2015: 14.73 ft, action stageDec 1, 2015: 14.31 ft, below flood stageJan 10, 2016: 16.36 ft, minor floodingFeb 9, 2016: 14.30 ft, below flood stageFeb 16, 2016: 14.91 ft, action stageFeb 25, 2016: 14.17 ft, below flood stageOct 8, 2016: 17.07 ft, moderate floodingOct 18, 2016: 19.23 ft, major floodingSep 12, 2017: 14.59 ft, action stageSep 17, 2018: 14.76 ft, action stageSep 27, 2018: 21.83 ft, major floodingOct 26, 2018: 14.33 ft, below flood stageNov 26, 2018: 15.94 ft, minor floodingDec 21, 2018: 15.33 ft, minor floodingDec 28, 2018: 15.53 ft, minor floodingJan 8, 2019: 14.74 ft, action stageMar 8, 2019: 14.52 ft, action stageMar 13, 2019: 14.19 ft, below flood stageSep 5, 2019: 15.14 ft, minor floodingFeb 21, 2020: 16.47 ft, minor floodingJun 7, 2020: 17.35 ft, moderate floodingAug 4, 2020: 14.55 ft, action stageNov 25, 2020: 15.77 ft, minor floodingJan 13, 2021: 15.06 ft, minor floodingFeb 27, 2021: 18.24 ft, major floodingSep 30, 2022: 14.68 ft, action stageAug 31, 2023: 14.05 ft, below flood stageDec 17, 2023: 15.34 ft, minor floodingJan 10, 2024: 14.17 ft, below flood stageAug 21, 2024: 16.73 ft, moderate floodingSep 27, 2024: 14.32 ft, below flood stageOct 11, 2024: 14.28 ft, below flood stage Highest, 21.83 ft, Sep 27, 2018 200020052010201520202025

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Atlantic Intracoastal Waterway above Aiw At Hwy 544 At Socastee 1990s: 1 2000s: 1 2010s: 10 10 2020s: 7 1990s2000s2010s2020s
  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

The 50 highest of 68 listed crests.

Highest listed crests, Atlantic Intracoastal Waterway above Aiw At Hwy 544 At Socastee
1Sep 27, 201821.83+6.83Major—
2Oct 18, 201619.23+4.23Major—
3Feb 27, 202118.24+3.24Major—
4Jun 7, 202017.35+2.35Moderate—
5Oct 8, 201617.07+2.07Moderate—
6Oct 12, 201516.80+1.80Moderate—
7Aug 21, 202416.73+1.73Moderate—
8Oct 5, 201516.50+1.50Moderate—
9Feb 21, 202016.47+1.47Minor—
10Jan 10, 201616.36+1.36Minor—
11Apr 22, 200316.03+1.03Minor—
12Nov 26, 201815.94+0.94Minor—
13Nov 25, 202015.77+0.77Minor—
14Sep 29, 199915.76+0.76Minor—
15Dec 28, 201815.53+0.53Minor—
16Dec 17, 202315.34+0.34Minor—
17Dec 21, 201815.33+0.33Minor—
18Sep 5, 201915.14+0.14Minor—
19Jan 13, 202115.06+0.06Minor—
20Apr 2, 200314.93−0.07Action—
21Feb 16, 201614.91−0.09Action—
22Mar 21, 200314.80−0.20Action—
23Oct 7, 199914.79−0.21Action—
24Sep 17, 201814.76−0.24Action—
25Jan 8, 201914.74−0.26Action—
26Nov 22, 201514.73−0.27Action—
27Oct 18, 199914.71−0.29Action—
28Sep 30, 202214.68−0.32Action—
29Sep 12, 201714.59−0.41Action—
30Sep 21, 200414.58−0.42Action—
31Oct 26, 199914.57−0.43Action—
32Aug 4, 202014.55−0.45Action—
33Mar 8, 201914.52−0.48Action—
34Jul 18, 201314.50−0.50Action—
35Feb 6, 201014.44−0.56Below flood stage—
36Dec 19, 200914.43−0.57Below flood stage—
37Feb 15, 201014.39−0.61Below flood stage—
38Oct 26, 201814.33−0.67Below flood stage—
39Sep 27, 202414.32−0.68Below flood stage—
40Dec 1, 201514.31−0.69Below flood stage—
41Feb 9, 201614.30−0.70Below flood stage—
42Oct 11, 202414.28−0.72Below flood stage—
43Nov 15, 201514.23−0.77Below flood stage—
44Dec 6, 200614.22−0.78Below flood stage—
45Mar 13, 201914.19−0.81Below flood stage—
46Mar 21, 200114.17−0.83Below flood stage—
47Feb 25, 201614.17−0.83Below flood stage—
48Jan 10, 202414.17−0.83Below flood stage—
49Apr 9, 200314.12−0.88Below flood stage—
50Sep 30, 201014.12−0.88Below flood stage—

Other gauges in Horry County

Flood gauges in Horry County
Atlantic Coast at Myrtle Beach Springmaid Pier (IN MLLW)7.016.00 ft, Sep 22, 19892
Galivants Ferry9.017.21 ft, Sep 21, 201814
Nichols20.027.36 ft, Sep 20, 20182
Longs12.020.19 ft, Sep 22, 20182
Conway11.021.16 ft, Sep 26, 201820

Horry County: every hazard · River floods across the country · South Carolina

NOAA National Water Prediction Service, gauge SOCS1, 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.