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Gunnison River at Delta

Highest listed crest 9.89 ftFlood stage 9.0 ft23 crests since 2005

The Gunnison River at Delta crested above flood stage 5 times among the 23 crests the National Weather Service lists from 2005 to 2026. The highest, 9.89 ft on May 25, 2017, was minor flooding, 0.89 feet above flood stage.

The gauge

Highest listed crest
9.89 ft
May 25, 2017; 14,900 cubic feet per second
Flood stage
9.0 ft
Major flooding from 10.5 ft
Crests at major
0
5 above flood stage
Most recent flood crest
May 17, 2023
9.22 ft, minor flooding
Location
Delta County
Colorado

Flood stages

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

Flood categories, Gunnison River at Delta
Action stage8.52Jun 6, 2014The level at which the NWS or its partners begin to take action
Flood stage (minor)9.05May 17, 2023Minimal or no property damage, but possibly some public threat
Moderate flood stage10.00—Some inundation of structures and roads near the stream
Major flood stage10.50—Extensive inundation of structures and roads

Every listed crest

23 crests from 2005 to 2026. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Gunnison River at Delta, 2005 to 2026 24681012ft Flood stage 9.0 ftMajor 10.5 ft May 24, 2005: 7.47 ft, below flood stage; 8,880 cubic feet per secondJul 20, 2006: 5.67 ft, below flood stage; 5,770 cubic feet per secondMay 15, 2007: 4.14 ft, below flood stage; 3,410 cubic feet per secondMay 22, 2008: 9.11 ft, minor flooding; 13,300 cubic feet per secondMay 13, 2009: 8.55 ft, action stage; 11,800 cubic feet per secondMay 18, 2010: 5.90 ft, below flood stage; 5,930 cubic feet per secondJun 8, 2011: 9.27 ft, minor flooding; 13,700 cubic feet per secondDec 3, 2011: 3.08 ft, below flood stage; 1,910 cubic feet per secondMay 18, 2013: 3.87 ft, below flood stage; 2,770 cubic feet per secondJun 6, 2014: 8.87 ft, action stage; 12,300 cubic feet per secondJun 20, 2015: 7.66 ft, below flood stage; 9,450 cubic feet per secondMay 22, 2016: 7.53 ft, below flood stage; 9,170 cubic feet per secondMay 25, 2017: 9.89 ft, minor flooding; 14,900 cubic feet per secondMay 14, 2018: 3.29 ft, below flood stage; 2,180 cubic feet per secondJun 9, 2019: 9.41 ft, minor flooding; 12,500 cubic feet per secondMay 20, 2020: 5.09 ft, below flood stage; 4,560 cubic feet per secondJun 5, 2021: 2.69 ft, below flood stage; 1,450 cubic feet per secondAug 20, 2021: 2.90 ft, below flood stageMay 19, 2022: 5.83 ft, below flood stage; 5,690 cubic feet per secondMay 17, 2023: 9.22 ft, minor flooding; 12,000 cubic feet per secondMay 22, 2024: 7.23 ft, below flood stage; 8,090 cubic feet per secondJun 1, 2025: 5.55 ft, below flood stage; 5,250 cubic feet per secondMar 27, 2026: 2.54 ft, below flood stage; 1,354 cubic feet per second Highest, 9.89 ft, May 25, 2017 20052010201520202025

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Gunnison River at Delta 2000s: 1 2010s: 3 3 2020s: 1 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.
  3. 29 crests measured on an earlier gauge datum are left out: 13.50 ft on Jun 6, 1957; 6.46 ft on Jun 6, 1976; 6.48 ft on Jan 10, 1977; 8.23 ft on May 17, 1978; 9.72 ft on May 28, 1979; 6.83 ft on May 3, 1981; and more.

Highest crests

Highest listed crests, Gunnison River at Delta
1May 25, 20179.89+0.89Minor14,900
2Jun 9, 20199.41+0.41Minor12,500
3Jun 8, 20119.27+0.27Minor13,700
4May 17, 20239.22+0.22Minor12,000
5May 22, 20089.11+0.11Minor13,300
6Jun 6, 20148.87−0.13Action12,300
7May 13, 20098.55−0.45Action11,800
8Jun 20, 20157.66−1.34Below flood stage9,450
9May 22, 20167.53−1.47Below flood stage9,170
10May 24, 20057.47−1.53Below flood stage8,880
11May 22, 20247.23−1.77Below flood stage8,090
12May 18, 20105.90−3.10Below flood stage5,930
13May 19, 20225.83−3.17Below flood stage5,690
14Jul 20, 20065.67−3.33Below flood stage5,770
15Jun 1, 20255.55−3.45Below flood stage5,250
16May 20, 20205.09−3.91Below flood stage4,560
17May 15, 20074.14−4.86Below flood stage3,410
18May 18, 20133.87−5.13Below flood stage2,770
19May 14, 20183.29−5.71Below flood stage2,180
20Dec 3, 20113.08−5.92Below flood stage1,910
21Aug 20, 20212.90−6.10Below flood stage—
22Jun 5, 20212.69−6.31Below flood stage1,450
23Mar 27, 20262.54−6.46Below flood stage1,354

Delta County: every hazard · River floods across the country · Colorado

NOAA National Water Prediction Service, gauge DELC2, 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.