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Ohio River at Lloyd Greenup Lock

Highest listed crest 64.50 ftFlood stage 54.0 ft24 crests since 1884

The Ohio River at Lloyd Greenup Lock crested at major flood stage 3 times among the 24 crests the National Weather Service lists from 1884 to 2025. The highest, 64.50 ft on March 31, 1913, was major flooding, 10.50 feet above flood stage. 21 other gauges on the Ohio River crested above flood stage within a week of it, 4 at their own highest listed crest.

The gauge

Highest listed crest
64.50 ft
March 31, 1913
Flood stage
54.0 ft
Major flooding from 62.0 ft
Crests at major
3
37th of 72 gauges in Kentucky
Most recent flood crest
April 7, 2025
54.90 ft, minor flooding
Location
Greenup County
Near Portsmouth (8.8 mi), Ironton (12.6 mi)

Flood stages

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

Flood categories, Ohio River at Lloyd Greenup Lock
Action stage52.03Feb 25, 2003The level at which the NWS or its partners begin to take action
Flood stage (minor)54.07Apr 7, 2025Minimal or no property damage, but possibly some public threat
Moderate flood stage56.08Mar 3, 2021Some inundation of structures and roads near the stream
Major flood stage62.03Mar 4, 1997Extensive inundation of structures and roads

Every listed crest

24 crests from 1884 to 2025. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Ohio River at Lloyd Greenup Lock, 1884 to 2025 50556065ft Flood stage 54.0 ftMajor 62.0 ft Feb 12, 1884: 64.00 ft, major floodingMar 31, 1913: 64.50 ft, major floodingMar 9, 1945: 61.70 ft, moderate floodingJan 13, 1974: 55.00 ft, minor floodingApr 7, 1977: 53.77 ft, action stage; 478,000 cubic feet per secondDec 11, 1978: 59.20 ft, moderate flooding; 534,000 cubic feet per secondFeb 28, 1979: 59.19 ft, moderate floodingNov 30, 1985: 53.71 ft, action stage; 454,000 cubic feet per secondJan 2, 1991: 56.04 ft, moderate flooding; 481,000 cubic feet per secondMar 26, 1993: 50.57 ft, below flood stage; 420,000 cubic feet per secondJan 22, 1996: 55.30 ft, minor floodingMar 4, 1997: 62.30 ft, major floodingFeb 25, 2003: 52.16 ft, action stageJan 10, 2005: 56.64 ft, moderate floodingMar 13, 2011: 56.80 ft, moderate floodingFeb 3, 2013: 50.01 ft, below flood stageMar 7, 2015: 54.80 ft, minor floodingMar 14, 2015: 54.72 ft, minor floodingFeb 20, 2018: 57.14 ft, moderate floodingDec 24, 2018: 51.84 ft, below flood stageFeb 15, 2020: 54.94 ft, minor floodingMar 3, 2021: 57.99 ft, moderate floodingFeb 18, 2025: 55.58 ft, minor floodingApr 7, 2025: 54.90 ft, minor flooding Highest, 64.50 ft, Mar 31, 1913 1900192019401960198020002020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Ohio River at Lloyd Greenup Lock 1880s: 1 1890s: 0 1900s: 0 1910s: 1 1920s: 0 1930s: 0 1940s: 1 1950s: 0 1960s: 0 1970s: 3 1980s: 0 1990s: 3 2000s: 1 2010s: 4 4 2020s: 4 1880s1900s1920s1940s1960s1980s2000s2020s
  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.
  3. 1 crest measured on an earlier gauge datum is left out: 74.70 ft on Jan 27, 1937.

Highest crests

Highest listed crests, Ohio River at Lloyd Greenup Lock
1Mar 31, 191364.50+10.50Major—
2Feb 12, 188464.00+10.00Major—
3Mar 4, 199762.30+8.30Major—
4Mar 9, 194561.70+7.70Moderate—
5Dec 11, 197859.20+5.20Moderate534,000
6Feb 28, 197959.19+5.19Moderate—
7Mar 3, 202157.99+3.99Moderate—
8Feb 20, 201857.14+3.14Moderate—
9Mar 13, 201156.80+2.80Moderate—
10Jan 10, 200556.64+2.64Moderate—
11Jan 2, 199156.04+2.04Moderate481,000
12Feb 18, 202555.58+1.58Minor—
13Jan 22, 199655.30+1.30Minor—
14Jan 13, 197455.00+1.00Minor—
15Feb 15, 202054.94+0.94Minor—
16Apr 7, 202554.90+0.90Minor—
17Mar 7, 201554.80+0.80Minor—
18Mar 14, 201554.72+0.72Minor—
19Apr 7, 197753.77−0.23Action478,000
20Nov 30, 198553.71−0.29Action454,000
21Feb 25, 200352.16−1.84Action—
22Dec 24, 201851.84−2.16Below flood stage—
23Mar 26, 199350.57−3.43Below flood stage420,000
24Feb 3, 201350.01−3.99Below flood stage—

The worst floods along the Ohio River

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

March 31, 1913: 64.50 ft here, major flooding

  • AshlandKY · Mar 31, 1913 · 70.60 ft · Major
  • MaysvilleKY · Mar 31, 1913 · 68.80 ft · Major
  • PomeroyOH · Apr 1, 1913 · 68.80 ft · Major · its highest
  • Meldahl DamOH · Mar 31, 1913 · 67.00 ft · Major
  • Point PleasantWV · Mar 30, 1913 · 62.80 ft · Major · its highest
  • Belleville LockWV · Mar 29, 1913 · 61.80 ft · Major · its highest
  • Marietta PumphouseOH · Mar 29, 1913 · 58.30 ft · Major · its highest
  • GolcondaIL · Apr 6, 1913 · 56.80 ft · Major
  • CairoIL · Apr 4, 1913 · 54.70 ft · Major
  • PaducahKY · Apr 7, 1913 · 54.30 ft · Major

February 12, 1884: 64.00 ft here, major flooding

March 4, 1997: 62.30 ft here, major flooding

Gauges on the Ohio River

Flood gauges sharing the river's name, linked within 80 miles of one another.

Flood gauges on the Ohio River
AshlandKY52.074.21 ft, Jan 27, 19374
Belleville LockWV35.061.80 ft, Mar 29, 191315
CairoIL40.061.72 ft, May 2, 201119
Cannelton Lock and DamKY42.060.80 ft, Jan 27, 19378
CincinnatiOH52.066.20 ft, Mar 11, 19641
Clifty CreekIN451.0475.90 ft, Jan 27, 19371
Dashields Lock and DamPA25.042.80 ft, Mar 18, 19365
East LiverpoolWV14.029.90 ft, Mar 19, 193611
EvansvilleIN42.053.75 ft, Jan 31, 19371
GolcondaIL40.062.60 ft, Feb 2, 19373
Hannibal Lock and DamOH35.041.90 ft, Jun 25, 19722
HendersonKY36.043.08 ft, Apr 12, 20250
IrontonOH52.054.67 ft, Feb 19, 20180
J.T. Myers Lock and DamKY37.064.40 ft, Feb 1, 19371
Lloyd Greenup Lock this gaugeKY54.064.50 ft, Mar 31, 19133
Marietta PumphouseOH35.058.30 ft, Mar 29, 19133
Markland LowerKY51.076.10 ft, Jan 26, 19371
MaysvilleKY50.075.60 ft, Jan 27, 19372
McAlpine LowerKY55.085.44 ft, Jan 27, 19374
McAlpine UpperKY23.052.15 ft, Jan 27, 19377
Meldahl DamOH51.076.00 ft, Jan 26, 19373
Montgomery Lock and DamPA33.055.00 ft, Mar 18, 193610
MoundsvilleWV37.057.90 ft, Mar 19, 19363
Mount VernonIN35.059.21 ft, Feb 1, 19372
New Cumberland Lock and DamOH36.050.20 ft, Dec 31, 194215
Newburgh Lock and DamKY38.056.60 ft, Jan 31, 19371
Olmsted Lock and Dam HeadwaterKY36.048.20 ft, Feb 21, 20201
OwensboroKY40.054.80 ft, Jan 29, 19375
PaducahKY39.060.60 ft, Feb 2, 19377
ParkersburgWV36.045.20 ft, Mar 12, 19645
Pike Island Lock and DamWV37.047.70 ft, Mar 11, 19645
PittsburghPA22.046.00 ft, Mar 18, 193622
Point PleasantWV40.062.80 ft, Mar 30, 191325
PomeroyOH46.068.80 ft, Apr 1, 191334
PortsmouthOH50.053.78 ft, Apr 7, 20250
Powhatan PointOH37.053.30 ft, Mar 19, 19365
R C Byrd LockWV50.069.60 ft, Jan 27, 19379
Racine LockWV41.050.23 ft, Sep 20, 20043
ShawneetownKY33.065.64 ft, Jan 30, 19377
Smithland Lock and DamKY40.054.83 ft, May 6, 20114
SteubenvilleOH36.044.00 ft, Jan 20, 19961
Tell CityIN38.056.95 ft, Jan 29, 19376
WellsburgWV36.054.60 ft, Mar 19, 19369
WellsvilleOH11.020.90 ft, Jan 20, 19963
WheelingWV36.045.40 ft, Jan 20, 19963
Willow Island LockWV37.044.78 ft, Sep 19, 20042
HuntingtonOH50.057.52 ft, Mar 5, 19970

Other gauges in Greenup County

Flood gauges in Greenup County
Greenup20.024.40 ft, May 3, 20103

Greenup County: every hazard · River floods across the country · Kentucky

NOAA National Water Prediction Service, gauge GNUK2, 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.