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Blackberry Creek at Yorkville

Highest listed crest 13.16 ftFlood stage 7.0 ft51 crests since 1962

The Blackberry Creek at Yorkville crested above flood stage 35 times among the 51 crests the National Weather Service lists from 1962 to 2024. The highest, 13.16 ft on July 18, 1996, was moderate flooding, 6.16 feet above flood stage. 1 other gauge on the Blackberry Creek crested above flood stage within a week of it, 1 at its own highest listed crest.

The gauge

Highest listed crest
13.16 ft
July 18, 1996; 5,510 cubic feet per second
Flood stage
7.0 ft
Major flooding from 14.0 ft
Crests at major
0
35 above flood stage
Most recent flood crest
May 19, 2020
8.58 ft, minor flooding
Location
Kendall County
Near Yorkville (1.0 mi), Plano (4.9 mi), Oswego (5.4 mi)

Flood stages

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

Flood categories, Blackberry Creek at Yorkville
Action stage6.512Jan 27, 2024The level at which the NWS or its partners begin to take action
Flood stage (minor)7.034May 19, 2020Minimal or no property damage, but possibly some public threat
Moderate flood stage12.01Jul 18, 1996Some inundation of structures and roads near the stream
Major flood stage14.00—Extensive inundation of structures and roads

Every listed crest

51 crests from 1962 to 2024. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Blackberry Creek at Yorkville, 1962 to 2024 68101214ft Flood stage 7.0 ftMajor 14.0 ft Mar 20, 1962: 6.98 ft, action stage; 1,000 cubic feet per secondJun 1, 1963: 6.03 ft, below flood stage; 472 cubic feet per secondFeb 8, 1965: 7.05 ft, minor flooding; 605 cubic feet per secondMay 13, 1966: 7.64 ft, minor flooding; 906 cubic feet per secondApr 2, 1967: 6.77 ft, action stage; 618 cubic feet per secondJan 23, 1969: 6.61 ft, action stage; 578 cubic feet per secondJun 3, 1970: 8.54 ft, minor flooding; 1,300 cubic feet per secondFeb 20, 1971: 7.01 ft, minor flooding; 686 cubic feet per secondJun 17, 1972: 6.72 ft, action stage; 546 cubic feet per secondDec 31, 1972: 6.94 ft, action stage; 619 cubic feet per secondMay 17, 1974: 8.58 ft, minor flooding; 1,320 cubic feet per secondApr 20, 1975: 6.25 ft, below flood stage; 483 cubic feet per secondMar 6, 1976: 6.85 ft, action stage; 637 cubic feet per secondSep 14, 1978: 7.97 ft, minor flooding; 1,030 cubic feet per secondMar 20, 1979: 8.30 ft, minor flooding; 1,250 cubic feet per secondJun 14, 1981: 8.12 ft, minor flooding; 1,140 cubic feet per secondMar 14, 1982: 7.19 ft, minor flooding; 766 cubic feet per secondJul 3, 1983: 9.91 ft, minor flooding; 2,060 cubic feet per secondFeb 14, 1984: 7.08 ft, minor flooding; 765 cubic feet per secondMar 5, 1985: 8.55 ft, minor flooding; 1,290 cubic feet per secondNov 21, 1985: 7.18 ft, minor flooding; 797 cubic feet per secondAug 28, 1987: 7.99 ft, minor flooding; 973 cubic feet per secondApr 7, 1988: 6.20 ft, below flood stage; 432 cubic feet per secondMar 11, 1990: 6.52 ft, action stage; 544 cubic feet per secondMay 27, 1991: 8.76 ft, minor flooding; 1,360 cubic feet per secondMar 24, 1993: 7.56 ft, minor flooding; 724 cubic feet per secondFeb 21, 1994: 8.44 ft, minor flooding; 1,070 cubic feet per secondJan 16, 1995: 6.97 ft, action stage; 516 cubic feet per secondJul 18, 1996: 13.16 ft, moderate flooding; 5,510 cubic feet per secondFeb 22, 1997: 9.96 ft, minor flooding; 2,040 cubic feet per secondMay 9, 1998: 6.77 ft, action stage; 507 cubic feet per secondApr 24, 1999: 7.96 ft, minor flooding; 959 cubic feet per secondFeb 11, 2001: 7.12 ft, minor flooding; 609 cubic feet per secondJun 6, 2002: 7.40 ft, minor flooding; 562 cubic feet per secondMay 10, 2003: 6.59 ft, action stage; 313 cubic feet per secondJun 13, 2004: 7.85 ft, minor flooding; 1,130 cubic feet per secondMar 3, 2007: 7.73 ft, minor flooding; 1,070 cubic feet per secondSep 15, 2008: 9.94 ft, minor flooding; 2,130 cubic feet per secondDec 29, 2008: 8.91 ft, minor flooding; 1,270 cubic feet per secondAug 5, 2010: 7.15 ft, minor flooding; 539 cubic feet per secondJun 11, 2011: 7.84 ft, minor flooding; 920 cubic feet per secondDec 16, 2011: 6.29 ft, below flood stage; 348 cubic feet per secondApr 19, 2013: 9.54 ft, minor flooding; 1,760 cubic feet per secondJun 23, 2014: 7.26 ft, minor flooding; 513 cubic feet per secondMay 2, 2017: 7.79 ft, minor flooding; 722 cubic feet per secondOct 16, 2017: 8.12 ft, minor flooding; 827 cubic feet per secondFeb 22, 2018: 8.16 ft, minor flooding; 845 cubic feet per secondMay 2, 2019: 8.11 ft, minor flooding; 819 cubic feet per secondMay 19, 2020: 8.58 ft, minor flooding; 1,500 cubic feet per secondFeb 23, 2022: 6.66 ft, action stage; 440 cubic feet per secondJan 27, 2024: 6.54 ft, action stage; 280 cubic feet per second Highest, 13.16 ft, Jul 18, 1996 197019801990200020102020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Blackberry Creek at Yorkville 1960s: 2 1970s: 5 1980s: 7 1990s: 6 2000s: 6 2010s: 8 8 2020s: 1 1960s1970s1980s1990s2000s2010s2020s
  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

The 50 highest of 51 listed crests.

Highest listed crests, Blackberry Creek at Yorkville
1Jul 18, 199613.16+6.16Moderate5,510
2Feb 22, 19979.96+2.96Minor2,040
3Sep 15, 20089.94+2.94Minor2,130
4Jul 3, 19839.91+2.91Minor2,060
5Apr 19, 20139.54+2.54Minor1,760
6Dec 29, 20088.91+1.91Minor1,270
7May 27, 19918.76+1.76Minor1,360
8May 17, 19748.58+1.58Minor1,320
9May 19, 20208.58+1.58Minor1,500
10Mar 5, 19858.55+1.55Minor1,290
11Jun 3, 19708.54+1.54Minor1,300
12Feb 21, 19948.44+1.44Minor1,070
13Mar 20, 19798.30+1.30Minor1,250
14Feb 22, 20188.16+1.16Minor845
15Jun 14, 19818.12+1.12Minor1,140
16Oct 16, 20178.12+1.12Minor827
17May 2, 20198.11+1.11Minor819
18Aug 28, 19877.99+0.99Minor973
19Sep 14, 19787.97+0.97Minor1,030
20Apr 24, 19997.96+0.96Minor959
21Jun 13, 20047.85+0.85Minor1,130
22Jun 11, 20117.84+0.84Minor920
23May 2, 20177.79+0.79Minor722
24Mar 3, 20077.73+0.73Minor1,070
25May 13, 19667.64+0.64Minor906
26Mar 24, 19937.56+0.56Minor724
27Jun 6, 20027.40+0.40Minor562
28Jun 23, 20147.26+0.26Minor513
29Mar 14, 19827.19+0.19Minor766
30Nov 21, 19857.18+0.18Minor797
31Aug 5, 20107.15+0.15Minor539
32Feb 11, 20017.12+0.12Minor609
33Feb 14, 19847.08+0.08Minor765
34Feb 8, 19657.05+0.05Minor605
35Feb 20, 19717.01+0.01Minor686
36Mar 20, 19626.98−0.02Action1,000
37Jan 16, 19956.97−0.03Action516
38Dec 31, 19726.94−0.06Action619
39Mar 6, 19766.85−0.15Action637
40Apr 2, 19676.77−0.23Action618
41May 9, 19986.77−0.23Action507
42Jun 17, 19726.72−0.28Action546
43Feb 23, 20226.66−0.34Action440
44Jan 23, 19696.61−0.39Action578
45May 10, 20036.59−0.41Action313
46Jan 27, 20246.54−0.46Action280
47Mar 11, 19906.52−0.48Action544
48Dec 16, 20116.29−0.71Below flood stage348
49Apr 20, 19756.25−0.75Below flood stage483
50Apr 7, 19886.20−0.80Below flood stage432

The worst floods along the Blackberry Creek

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

July 18, 1996: 13.16 ft here, moderate flooding

  • MontgomeryIL · Jul 18, 1996 · 13.50 ft · Major · its highest

September 15, 2008: 9.94 ft here, minor flooding

Gauges on the Blackberry Creek

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

Flood gauges on the Blackberry Creek
MontgomeryIL10.013.50 ft, Jul 18, 19961
Yorkville this gaugeIL7.013.16 ft, Jul 18, 19960

Other gauges in Kendall County

Flood gauges in Kendall County
Yorkville (Palmer Dam)15.521.00 ft, Jul 18, 19961
Oswego12.013.35 ft, Oct 15, 20170

Kendall County: every hazard · River floods across the country · Illinois

NOAA National Water Prediction Service, gauge YRKI2, 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.