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North Concho River near Carlsbad

Highest listed crest 25.85 ftFlood stage 12.0 ft21 crests since 1957

The North Concho River near Carlsbad crested at major flood stage 3 times among the 21 crests the National Weather Service lists from 1957 to 2025. The highest, 25.85 ft on October 13, 1957, was major flooding, 13.85 feet above flood stage. 1 other gauge on the North Concho River crested above flood stage within a week of it.

The gauge

Highest listed crest
25.85 ft
October 13, 1957; 79,200 cubic feet per second
Flood stage
12.0 ft
Major flooding from 20.0 ft
Crests at major
3
187th of 370 gauges in Texas
Most recent flood crest
July 4, 2025
12.41 ft, minor flooding
Location
Tom Green County
Texas

Flood stages

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

Flood categories, North Concho River near Carlsbad
Action stage10.01Sep 21, 1972The level at which the NWS or its partners begin to take action
Flood stage (minor)12.07Jul 4, 2025Minimal or no property damage, but possibly some public threat
Moderate flood stage15.010Oct 23, 2015Some inundation of structures and roads near the stream
Major flood stage20.03May 19, 2015Extensive inundation of structures and roads

Every listed crest

21 crests from 1957 to 2025. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the North Concho River near Carlsbad, 1957 to 2025 1015202530ft Flood stage 12.0 ftMajor 20.0 ft Apr 28, 1957: 14.75 ft, minor flooding; 8,180 cubic feet per secondOct 13, 1957: 25.85 ft, major flooding; 79,200 cubic feet per secondJun 4, 1959: 14.62 ft, minor flooding; 6,940 cubic feet per secondOct 4, 1959: 13.77 ft, minor flooding; 6,220 cubic feet per secondMay 20, 1961: 16.54 ft, moderate flooding; 9,820 cubic feet per secondApr 30, 1966: 12.62 ft, minor flooding; 5,010 cubic feet per secondSep 21, 1972: 11.06 ft, action stage; 3,190 cubic feet per secondSep 20, 1974: 22.00 ft, major flooding; 20,000 cubic feet per secondAug 3, 1978: 13.80 ft, minor flooding; 6,030 cubic feet per secondAug 17, 1980: 17.68 ft, moderate flooding; 10,900 cubic feet per secondSep 10, 1980: 15.81 ft, moderate flooding; 8,360 cubic feet per secondAug 27, 1986: 19.44 ft, moderate flooding; 11,500 cubic feet per secondOct 6, 1986: 18.48 ft, moderate flooding; 10,100 cubic feet per secondSep 18, 1988: 12.68 ft, minor flooding; 3,800 cubic feet per secondAug 29, 1996: 16.91 ft, moderate flooding; 7,160 cubic feet per secondMar 24, 2000: 19.31 ft, moderate flooding; 10,700 cubic feet per secondOct 24, 2000: 16.60 ft, moderate flooding; 7,030 cubic feet per secondAug 15, 2005: 15.41 ft, moderate flooding; 6,338 cubic feet per secondMay 19, 2015: 21.45 ft, major flooding; 16,500 cubic feet per secondOct 23, 2015: 16.41 ft, moderate flooding; 8,280 cubic feet per secondJul 4, 2025: 12.41 ft, minor flooding; 4,158 cubic feet per second Highest, 25.85 ft, Oct 13, 1957 1960197019801990200020102020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, North Concho River near Carlsbad 1950s: 4 1960s: 2 1970s: 2 1980s: 5 5 1990s: 1 2000s: 3 2010s: 2 2020s: 1 1950s1960s1970s1980s1990s2000s2010s2020s
  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: 29.10 ft on Sep 26, 1936.

Highest crests

Highest listed crests, North Concho River near Carlsbad
1Oct 13, 195725.85+13.85Major79,200
2Sep 20, 197422.00+10.00Major20,000
3May 19, 201521.45+9.45Major16,500
4Aug 27, 198619.44+7.44Moderate11,500
5Mar 24, 200019.31+7.31Moderate10,700
6Oct 6, 198618.48+6.48Moderate10,100
7Aug 17, 198017.68+5.68Moderate10,900
8Aug 29, 199616.91+4.91Moderate7,160
9Oct 24, 200016.60+4.60Moderate7,030
10May 20, 196116.54+4.54Moderate9,820
11Oct 23, 201516.41+4.41Moderate8,280
12Sep 10, 198015.81+3.81Moderate8,360
13Aug 15, 200515.41+3.41Moderate6,338
14Apr 28, 195714.75+2.75Minor8,180
15Jun 4, 195914.62+2.62Minor6,940
16Aug 3, 197813.80+1.80Minor6,030
17Oct 4, 195913.77+1.77Minor6,220
18Sep 18, 198812.68+0.68Minor3,800
19Apr 30, 196612.62+0.62Minor5,010
20Jul 4, 202512.41+0.41Minor4,158
21Sep 21, 197211.06−0.94Action3,190

The worst floods along the North Concho River

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

October 13, 1957: 25.85 ft here, major flooding

September 20, 1974: 22.00 ft here, major flooding

March 24, 2000: 19.31 ft here, moderate flooding

Gauges on the North Concho River

In USGS station-number order, which runs downstream within a river basin.

Flood gauges on the North Concho River
Sterling CityTX17.023.70 ft, Jul 6, 19483
Carlsbad this gaugeTX12.025.85 ft, Oct 13, 19573

Other gauges in Tom Green County

Flood gauges in Tom Green County
San Angelo26.047.50 ft, Aug 6, 19064
Knickerbocker18.020.66 ft, Aug 12, 19710
San Angelo10.014.36 ft, Sep 15, 19360
Christoval10.021.95 ft, Jul 23, 19385
Tankersley14.016.57 ft, Aug 12, 19710

Tom Green County: every hazard · River floods across the country · Texas

NOAA National Water Prediction Service, gauge CLBT2, 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.