Search
Menu

Explore

Hazards

Analysis

Rankings

Reference

South Boulder Creek (CO) above Eldorado Springs

Highest listed crest 5.43 ftFlood stage 5.0 ft50 crests since 1971

The South Boulder Creek (CO) above Eldorado Springs crested above flood stage 1 time among the 50 crests the National Weather Service lists from 1971 to 2021. The highest, 5.43 ft on September 12, 2013, was minor flooding, 0.43 feet above flood stage.

The gauge

Highest listed crest
5.43 ft
September 12, 2013; 2,424 cubic feet per second
Flood stage
5.0 ft
Major flooding from 7.5 ft
Crests at major
0
1 above flood stage
Most recent flood crest
September 12, 2013
5.43 ft, minor flooding
Location
Boulder County
Near Boulder (6.9 mi), Superior (7.7 mi), Louisville (8.9 mi)
Identifiers
NWS BELC2
No USGS station

Flood stages

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

Flood categories, South Boulder Creek (CO) above Eldorado Springs
Action stage4.70—The level at which the NWS or its partners begin to take action
Flood stage (minor)5.01Sep 12, 2013Minimal or no property damage, but possibly some public threat
Moderate flood stage6.50—Some inundation of structures and roads near the stream
Major flood stage7.50—Extensive inundation of structures and roads

Every listed crest

50 crests from 1971 to 2021. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the South Boulder Creek (CO) above Eldorado Springs, 1971 to 2021 2468ft Flood stage 5.0 ftMajor 7.5 ft Jun 27, 1971: 3.79 ft, below flood stage; 455 cubic feet per secondJun 12, 1972: 3.85 ft, below flood stage; 416 cubic feet per secondMay 6, 1973: 3.83 ft, below flood stage; 450 cubic feet per secondMay 30, 1974: 3.74 ft, below flood stage; 475 cubic feet per secondJul 3, 1975: 3.55 ft, below flood stage; 344 cubic feet per secondJun 9, 1976: 3.56 ft, below flood stage; 282 cubic feet per secondJun 7, 1977: 3.55 ft, below flood stage; 318 cubic feet per secondMay 26, 1978: 3.68 ft, below flood stage; 384 cubic feet per secondJul 3, 1979: 3.54 ft, below flood stage; 326 cubic feet per secondJun 16, 1980: 3.62 ft, below flood stage; 406 cubic feet per secondJun 4, 1981: 3.58 ft, below flood stage; 366 cubic feet per secondJun 19, 1982: 3.50 ft, below flood stage; 435 cubic feet per secondJun 13, 1983: 3.86 ft, below flood stage; 602 cubic feet per secondJul 3, 1984: 3.40 ft, below flood stage; 334 cubic feet per secondMay 31, 1985: 3.22 ft, below flood stage; 274 cubic feet per secondJun 4, 1986: 3.34 ft, below flood stage; 286 cubic feet per secondJun 4, 1987: 3.46 ft, below flood stage; 350 cubic feet per secondMay 20, 1988: 3.71 ft, below flood stage; 474 cubic feet per secondJun 11, 1990: 3.46 ft, below flood stage; 355 cubic feet per secondJun 1, 1991: 3.56 ft, below flood stage; 368 cubic feet per secondMay 24, 1992: 3.50 ft, below flood stage; 346 cubic feet per secondJun 1, 1993: 3.56 ft, below flood stage; 383 cubic feet per secondJun 2, 1994: 3.53 ft, below flood stage; 359 cubic feet per secondJun 18, 1995: 4.37 ft, below flood stage; 845 cubic feet per secondMay 19, 1996: 3.70 ft, below flood stage; 450 cubic feet per secondJun 19, 1997: 3.30 ft, below flood stage; 480 cubic feet per secondMay 22, 1998: 3.13 ft, below flood stage; 428 cubic feet per secondAug 4, 1999: 3.02 ft, below flood stage; 366 cubic feet per secondMay 31, 2000: 3.10 ft, below flood stage; 357 cubic feet per secondMay 28, 2001: 2.80 ft, below flood stage; 234 cubic feet per secondMay 31, 2002: 2.32 ft, below flood stage; 130 cubic feet per secondMay 30, 2003: 3.53 ft, below flood stage; 670 cubic feet per secondMay 16, 2004: 2.60 ft, below flood stage; 204 cubic feet per secondMay 24, 2005: 3.13 ft, below flood stage; 414 cubic feet per secondMay 23, 2006: 2.90 ft, below flood stage; 353 cubic feet per secondJun 19, 2007: 2.80 ft, below flood stage; 301 cubic feet per secondJun 4, 2008: 2.89 ft, below flood stage; 318 cubic feet per secondMay 21, 2009: 2.94 ft, below flood stage; 339 cubic feet per secondJun 16, 2010: 3.33 ft, below flood stage; 536 cubic feet per secondJul 13, 2011: 3.57 ft, below flood stage; 534 cubic feet per secondJul 11, 2012: 2.92 ft, below flood stage; 240 cubic feet per secondSep 12, 2013: 5.43 ft, minor flooding; 2,424 cubic feet per secondJun 2, 2014: 4.04 ft, below flood stage; 506 cubic feet per secondJun 5, 2015: 4.44 ft, below flood stage; 745 cubic feet per secondJun 14, 2016: 3.78 ft, below flood stage; 311 cubic feet per secondJun 23, 2017: 3.63 ft, below flood stage; 272 cubic feet per secondJun 11, 2018: 3.54 ft, below flood stage; 244 cubic feet per secondJun 11, 2019: 3.46 ft, below flood stage; 240 cubic feet per secondJun 6, 2020: 3.86 ft, below flood stage; 358 cubic feet per secondJun 19, 2021: 3.60 ft, below flood stage; 278 cubic feet per second Highest, 5.43 ft, Sep 12, 2013 19801990200020102020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, South Boulder Creek (CO) above Eldorado Springs 1970s: 0 1980s: 0 1990s: 0 2000s: 0 2010s: 1 1 2020s: 0 1970s1980s1990s2000s2010s2020s
  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: 9.24 ft on Sep 2, 1938.

Highest crests

Highest listed crests, South Boulder Creek (CO) above Eldorado Springs
1Sep 12, 20135.43+0.43Minor2,424
2Jun 5, 20154.44−0.56Below flood stage745
3Jun 18, 19954.37−0.63Below flood stage845
4Jun 2, 20144.04−0.96Below flood stage506
5Jun 13, 19833.86−1.14Below flood stage602
6Jun 6, 20203.86−1.14Below flood stage358
7Jun 12, 19723.85−1.15Below flood stage416
8May 6, 19733.83−1.17Below flood stage450
9Jun 27, 19713.79−1.21Below flood stage455
10Jun 14, 20163.78−1.22Below flood stage311
11May 30, 19743.74−1.26Below flood stage475
12May 20, 19883.71−1.29Below flood stage474
13May 19, 19963.70−1.30Below flood stage450
14May 26, 19783.68−1.32Below flood stage384
15Jun 23, 20173.63−1.37Below flood stage272
16Jun 16, 19803.62−1.38Below flood stage406
17Jun 19, 20213.60−1.40Below flood stage278
18Jun 4, 19813.58−1.42Below flood stage366
19Jul 13, 20113.57−1.43Below flood stage534
20Jun 9, 19763.56−1.44Below flood stage282
21Jun 1, 19913.56−1.44Below flood stage368
22Jun 1, 19933.56−1.44Below flood stage383
23Jul 3, 19753.55−1.45Below flood stage344
24Jun 7, 19773.55−1.45Below flood stage318
25Jul 3, 19793.54−1.46Below flood stage326
26Jun 11, 20183.54−1.46Below flood stage244
27Jun 2, 19943.53−1.47Below flood stage359
28May 30, 20033.53−1.47Below flood stage670
29Jun 19, 19823.50−1.50Below flood stage435
30May 24, 19923.50−1.50Below flood stage346
31Jun 4, 19873.46−1.54Below flood stage350
32Jun 11, 19903.46−1.54Below flood stage355
33Jun 11, 20193.46−1.54Below flood stage240
34Jul 3, 19843.40−1.60Below flood stage334
35Jun 4, 19863.34−1.66Below flood stage286
36Jun 16, 20103.33−1.67Below flood stage536
37Jun 19, 19973.30−1.70Below flood stage480
38May 31, 19853.22−1.78Below flood stage274
39May 22, 19983.13−1.87Below flood stage428
40May 24, 20053.13−1.87Below flood stage414
41May 31, 20003.10−1.90Below flood stage357
42Aug 4, 19993.02−1.98Below flood stage366
43May 21, 20092.94−2.06Below flood stage339
44Jul 11, 20122.92−2.08Below flood stage240
45May 23, 20062.90−2.10Below flood stage353
46Jun 4, 20082.89−2.11Below flood stage318
47May 28, 20012.80−2.20Below flood stage234
48Jun 19, 20072.80−2.20Below flood stage301
49May 16, 20042.60−2.40Below flood stage204
50May 31, 20022.32−2.68Below flood stage130

Other gauges in Boulder County

Flood gauges in Boulder County
North 75TH St.8.010.60 ft, Sep 13, 20131
Broadway St8.08.18 ft, Sep 12, 20130
Nederland5.55.50 ft, Jun 22, 19950
Orodell4.04.31 ft, Jun 6, 19210
Jamestown4.54.60 ft, Apr 30, 19990
Nederland4.55.37 ft, Jun 2, 19140
Lyons8.013.00 ft, Sep 12, 20131
Lyons6.06.50 ft, May 29, 19950

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

NOAA National Water Prediction Service, gauge BELC2, 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.