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Rock River near Hardwick

Highest listed crest 21.18 ftFlood stage 14.0 ft18 crests since 2001

The Rock River near Hardwick crested above flood stage 13 times among the 18 crests the National Weather Service lists from 2001 to 2025. The highest, 21.18 ft on June 17, 2014, was moderate flooding, 7.18 feet above flood stage. 3 other gauges on the Rock River crested above flood stage within a week of it, 1 at its own highest listed crest.

The gauge

Highest listed crest
21.18 ft
June 17, 2014
Flood stage
14.0 ft
Major flooding from 22.0 ft
Crests at major
0
13 above flood stage
Most recent flood crest
June 22, 2024
19.89 ft, moderate flooding
Location
Rock County
Minnesota
Identifiers
NWS HRDM5
No USGS station

Flood stages

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

Flood categories, Rock River near Hardwick
Action stage12.03Jun 30, 2025The level at which the NWS or its partners begin to take action
Flood stage (minor)14.07Apr 12, 2023Minimal or no property damage, but possibly some public threat
Moderate flood stage17.06Jun 22, 2024Some inundation of structures and roads near the stream
Major flood stage22.00—Extensive inundation of structures and roads

Every listed crest

18 crests from 2001 to 2025. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Rock River near Hardwick, 2001 to 2025 510152025ft Flood stage 14.0 ftMajor 22.0 ft Apr 23, 2001: 18.70 ft, moderate floodingMar 14, 2007: 15.80 ft, minor floodingMar 14, 2010: 16.03 ft, minor floodingMay 7, 2012: 15.02 ft, minor floodingJun 23, 2013: 14.00 ft, minor floodingJun 17, 2014: 21.18 ft, moderate floodingMar 10, 2015: 19.91 ft, moderate floodingMay 1, 2016: 11.09 ft, below flood stage; 917 cubic feet per secondOct 4, 2017: 12.72 ft, action stage; 1,471 cubic feet per secondJun 21, 2018: 17.10 ft, moderate floodingMar 20, 2019: 16.63 ft, minor floodingSep 12, 2019: 19.99 ft, moderate flooding; 12,406 cubic feet per secondJul 6, 2020: 14.24 ft, minor flooding; 2,200 cubic feet per secondOct 29, 2021: 8.49 ft, below flood stageMay 13, 2022: 12.10 ft, action stageApr 12, 2023: 15.36 ft, minor floodingJun 22, 2024: 19.89 ft, moderate floodingJun 30, 2025: 12.39 ft, action stage Highest, 21.18 ft, Jun 17, 2014 20052010201520202025

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Rock River near Hardwick 2000s: 2 2010s: 8 8 2020s: 3 2000s2010s2020s
  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, Rock River near Hardwick
1Jun 17, 201421.18+7.18Moderate—
2Sep 12, 201919.99+5.99Moderate12,406
3Mar 10, 201519.91+5.91Moderate—
4Jun 22, 202419.89+5.89Moderate—
5Apr 23, 200118.70+4.70Moderate—
6Jun 21, 201817.10+3.10Moderate—
7Mar 20, 201916.63+2.63Minor—
8Mar 14, 201016.03+2.03Minor—
9Mar 14, 200715.80+1.80Minor—
10Apr 12, 202315.36+1.36Minor—
11May 7, 201215.02+1.02Minor—
12Jul 6, 202014.24+0.24Minor2,200
13Jun 23, 201314.000.00Minor—
14Oct 4, 201712.72−1.28Action1,471
15Jun 30, 202512.39−1.61Action—
16May 13, 202212.10−1.90Action—
17May 1, 201611.09−2.91Below flood stage917
18Oct 29, 20218.49−5.51Below flood stage—

The worst floods along the Rock River

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

June 17, 2014: 21.18 ft here, moderate flooding

  • Rock RapidsIA · Jun 17, 2014 · 26.98 ft · Major
  • Rock ValleyIA · Jun 17, 2014 · 22.72 ft · Major
  • LuverneMN · Jun 17, 2014 · 14.86 ft · Major · its highest

September 12, 2019: 19.99 ft here, moderate flooding

  • Rock RapidsIA · Sep 14, 2019 · 21.54 ft · Major
  • LuverneMN · Sep 13, 2019 · 13.94 ft · Moderate

June 22, 2024: 19.89 ft here, moderate flooding

  • Rock RapidsIA · Jun 22, 2024 · 28.65 ft · Major · its highest
  • Rock ValleyIA · Jun 22, 2024 · 27.70 ft · Major · its highest
  • LuverneMN · Jun 22, 2024 · 13.61 ft · Moderate

Gauges on the Rock River

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

Flood gauges on the Rock River
LuverneMN10.014.86 ft, Jun 17, 20142
Rock RapidsIA13.028.65 ft, Jun 22, 20247
Rock ValleyIA16.027.70 ft, Jun 22, 20246
Hardwick this gaugeMN14.021.18 ft, Jun 17, 20140

Other gauges in Rock County

Flood gauges in Rock County
Luverne10.014.86 ft, Jun 17, 20142
Jasper91.0100.37 ft, Sep 12, 20196

Rock County: every hazard · River floods across the country · Minnesota

NOAA National Water Prediction Service, gauge HRDM5, 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.