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Hassayampa River near Morristown

Highest listed crest 19.00 ftFlood stage 17.0 ft9 crests since 1970

The Hassayampa River near Morristown crested at major flood stage 1 time among the 9 crests the National Weather Service lists from 1970 to 2005. The highest, 19.00 ft on September 5, 1970, was major flooding, 2.00 feet above flood stage.

The gauge

Highest listed crest
19.00 ft
September 5, 1970; 47,500 cubic feet per second
Flood stage
17.0 ft
Major flooding from 19.0 ft
Crests at major
1
12th of 47 gauges in Arizona
Most recent flood crest
September 5, 1970
19.00 ft, major flooding
Location
Maricopa County
Arizona

Flood stages

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

Flood categories, Hassayampa River near Morristown
Action stage15.02Jan 8, 1993The level at which the NWS or its partners begin to take action
Flood stage (minor)17.00—Minimal or no property damage, but possibly some public threat
Moderate flood stage18.00—Some inundation of structures and roads near the stream
Major flood stage19.01Sep 5, 1970Extensive inundation of structures and roads

Every listed crest

9 crests from 1970 to 2005. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Hassayampa River near Morristown, 1970 to 2005 1214161820ft Flood stage 17.0 ftMajor 19.0 ft Sep 5, 1970: 19.00 ft, major flooding; 47,500 cubic feet per secondFeb 20, 1980: 14.32 ft, below flood stage; 17,000 cubic feet per secondSep 10, 1984: 16.18 ft, action stage; 26,700 cubic feet per secondMar 2, 1991: 13.55 ft, below flood stage; 13,700 cubic feet per secondJan 8, 1993: 15.91 ft, action stage; 26,300 cubic feet per secondFeb 15, 1995: 13.46 ft, below flood stage; 13,450 cubic feet per secondSep 26, 1997: 13.06 ft, below flood stage; 11,800 cubic feet per secondOct 21, 2000: 13.44 ft, below flood stage; 13,400 cubic feet per secondFeb 12, 2005: 14.05 ft, below flood stage; 14,500 cubic feet per second Highest, 19.00 ft, Sep 5, 1970 1970198019902000

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Hassayampa River near Morristown 1970s: 1 1 1980s: 0 1990s: 0 2000s: 0 1970s1980s1990s2000s
  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, Hassayampa River near Morristown
1Sep 5, 197019.00+2.00Major47,500
2Sep 10, 198416.18−0.82Action26,700
3Jan 8, 199315.91−1.09Action26,300
4Feb 20, 198014.32−2.68Below flood stage17,000
5Feb 12, 200514.05−2.95Below flood stage14,500
6Mar 2, 199113.55−3.45Below flood stage13,700
7Feb 15, 199513.46−3.54Below flood stage13,450
8Oct 21, 200013.44−3.56Below flood stage13,400
9Sep 26, 199713.06−3.94Below flood stage11,800

Other gauges in Maricopa County

Flood gauges in Maricopa County
Cave Creek9.016.49 ft, Jan 21, 20100
Painted Rock Lake661.0667.05 ft, Feb 27, 19930
Wickenburg5.09.90 ft, Oct 27, 20000
Ft McDowell17.019.70 ft, Sep 5, 19700

Maricopa County: every hazard · River floods across the country · Arizona

NOAA National Water Prediction Service, gauge HAMA3, 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.