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Allegheny River at Kittanning Lock and Dam

Highest listed crest 30.70 ftFlood stage 21.0 ft19 crests since 1913

The Allegheny River at Kittanning Lock and Dam crested at major flood stage 6 times among the 19 crests the National Weather Service lists from 1913 to 2022. The highest, 30.70 ft on March 26, 1913, was major flooding, 9.70 feet above flood stage. 2 other gauges on the Allegheny River crested above flood stage within a week of it.

The gauge

Highest listed crest
30.70 ft
March 26, 1913
Flood stage
21.0 ft
Major flooding from 23.0 ft
Crests at major
6
37th of 170 gauges in Pennsylvania
Most recent flood crest
September 18, 2004
22.20 ft, moderate flooding
Location
Armstrong County
Pennsylvania

Flood stages

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

Flood categories, Allegheny River at Kittanning Lock and Dam
Action stage17.07Feb 19, 2022The level at which the NWS or its partners begin to take action
Flood stage (minor)21.03Feb 20, 1981Minimal or no property damage, but possibly some public threat
Moderate flood stage22.03Sep 18, 2004Some inundation of structures and roads near the stream
Major flood stage23.06Jun 23, 1972Extensive inundation of structures and roads

Every listed crest

19 crests from 1913 to 2022. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Allegheny River at Kittanning Lock and Dam, 1913 to 2022 1520253035ft Flood stage 21.0 ftMajor 23.0 ft Mar 26, 1913: 30.70 ft, major floodingMar 18, 1936: 24.20 ft, major floodingDec 30, 1942: 23.70 ft, major floodingOct 16, 1954: 20.30 ft, action stageJan 22, 1959: 24.60 ft, major floodingApr 1, 1960: 21.40 ft, minor floodingMar 10, 1964: 24.80 ft, major floodingFeb 14, 1966: 22.20 ft, moderate floodingJun 23, 1972: 23.70 ft, major floodingFeb 17, 1976: 21.30 ft, minor floodingFeb 20, 1981: 21.70 ft, minor floodingFeb 14, 1984: 20.90 ft, action stageFeb 25, 1985: 19.50 ft, action stageDec 31, 1990: 19.70 ft, action stageJan 20, 1996: 22.70 ft, moderate floodingSep 18, 2004: 22.20 ft, moderate flooding; 164,300 cubic feet per secondMar 16, 2007: 20.47 ft, action stage; 139,300 cubic feet per secondFeb 8, 2019: 17.97 ft, action stage; 99,600 cubic feet per secondFeb 19, 2022: 19.74 ft, action stage Highest, 30.70 ft, Mar 26, 1913 192019401960198020002020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Allegheny River at Kittanning Lock and Dam 1910s: 1 1920s: 0 1930s: 1 1940s: 1 1950s: 1 1960s: 3 3 1970s: 2 1980s: 1 1990s: 1 2000s: 1 2010s: 0 2020s: 0 1910s1920s1930s1940s1950s1960s1970s1980s1990s2000s2010s2020s
  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, Allegheny River at Kittanning Lock and Dam
1Mar 26, 191330.70+9.70Major—
2Mar 10, 196424.80+3.80Major—
3Jan 22, 195924.60+3.60Major—
4Mar 18, 193624.20+3.20Major—
5Dec 30, 194223.70+2.70Major—
6Jun 23, 197223.70+2.70Major—
7Jan 20, 199622.70+1.70Moderate—
8Feb 14, 196622.20+1.20Moderate—
9Sep 18, 200422.20+1.20Moderate164,300
10Feb 20, 198121.70+0.70Minor—
11Apr 1, 196021.40+0.40Minor—
12Feb 17, 197621.30+0.30Minor—
13Feb 14, 198420.90−0.10Action—
14Mar 16, 200720.47−0.53Action139,300
15Oct 16, 195420.30−0.70Action—
16Feb 19, 202219.74−1.26Action—
17Dec 31, 199019.70−1.30Action—
18Feb 25, 198519.50−1.50Action—
19Feb 8, 201917.97−3.03Action99,600

The worst floods along the Allegheny River

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

March 26, 1913: 30.70 ft here, major flooding

  • WarrenPA · Mar 27, 1913 · 17.20 ft · Major
  • SalamancaNY · Mar 26, 1913 · 13.00 ft · Minor

March 10, 1964: 24.80 ft here, major flooding

January 22, 1959: 24.60 ft here, major flooding

Gauges on the Allegheny River

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

Flood gauges on the Allegheny River
EldredPA23.029.10 ft, Jun 23, 19722
OleanNY12.026.20 ft, Jun 23, 19722
SalamancaNY12.024.01 ft, Jun 23, 19721
WarrenPA14.019.40 ft, Mar 17, 18656
West HickoryPA14.017.83 ft, Jan 25, 19643
FranklinPA17.026.00 ft, Feb 27, 19173
ParkerPA20.029.60 ft, Jan 22, 19592
Rimer Lock and DamPA19.021.80 ft, Jan 22, 19590
Mosgrove Lock and DamPA19.027.70 ft, Mar 10, 19642
Kittanning Lock and Dam this gaugePA21.030.70 ft, Mar 26, 19136
Clinton Lock and DamPA21.026.40 ft, Mar 18, 19361
Freeport Lock and DamPA23.033.30 ft, Mar 18, 19361
Natrona Lock and DamPA21.032.10 ft, Mar 18, 19365
C.W. Bill Young Lock and DamPA17.031.10 ft, Mar 18, 19362
Sharpsburg Lock and DamPA21.026.90 ft, Jun 24, 19721

Other gauges in Armstrong County

Flood gauges in Armstrong County
Clinton Lock and Dam21.026.40 ft, Mar 18, 19361
Freeport Lock and Dam23.033.30 ft, Mar 18, 19361
Mosgrove Lock and Dam19.027.70 ft, Mar 10, 19642
Parker20.029.60 ft, Jan 22, 19592
Rimer Lock and Dam19.021.80 ft, Jan 22, 19590
Idaho12.519.33 ft, Sep 18, 20040
St Charles17.023.90 ft, Jul 19, 19961

Armstrong County: every hazard · River floods across the country · Pennsylvania

NOAA National Water Prediction Service, gauge KTTP1, 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.