Boulder Creek (CO) below Broadway St

Highest listed crest 8.18 ftFlood stage 8.0 ft14 crests since 2007

The Boulder Creek (CO) below Broadway St crested above flood stage 1 time among the 14 crests the National Weather Service lists from 2007 to 2021. The highest, 8.18 ft on September 12, 2013, was minor flooding, 0.18 feet above flood stage. 1 other gauge on the Boulder Creek (CO) crested above flood stage within a week of it, 1 at its own highest listed crest.

The gauge

Highest listed crest: 8.18 ft; September 12, 2013; 4,948 cubic feet per second
Flood stage: 8.0 ft; Major flooding from 12.5 ft
Crests at major: 0; 1 above flood stage
Most recent flood crest: September 12, 2013; 8.18 ft, minor flooding
Location: Boulder County; Near Boulder (1.6 mi), Louisville (7.8 mi), Superior (8.6 mi)
Identifiers: NWS BOCC2; 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, Boulder Creek (CO) below Broadway St

Action stage	5.5	1	Aug 14, 2008	The level at which the NWS or its partners begin to take action
Flood stage (minor)	8.0	1	Sep 12, 2013	Minimal or no property damage, but possibly some public threat
Moderate flood stage	10.0	0	—	Some inundation of structures and roads near the stream
Major flood stage	12.5	0	—	Extensive inundation of structures and roads

Every listed crest

14 crests from 2007 to 2021. Filled: at or above flood stage. Hover a crest for its date and stage.

Crests at or above flood stage, by decade

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.
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, Boulder Creek (CO) below Broadway St

1	Sep 12, 2013	8.18	+0.18	Minor	4,948
2	Aug 14, 2008	5.76	−2.24	Action	3,920
3	May 30, 2014	5.10	−2.90	Below flood stage	990
4	Jul 13, 2011	4.43	−3.57	Below flood stage	1,114
5	Jun 14, 2015	4.24	−3.76	Below flood stage	703
6	Jun 7, 2010	4.19	−3.81	Below flood stage	2,141
7	Jun 14, 2016	4.00	−4.00	Below flood stage	632
8	Jun 13, 2017	3.80	−4.20	Below flood stage	575
9	Jun 7, 2021	3.79	−4.21	Below flood stage	572
10	Jul 7, 2012	3.74	−4.26	Below flood stage	617
11	Jul 1, 2019	3.67	−4.33	Below flood stage	539
12	Jun 18, 2018	3.43	−4.57	Below flood stage	478
13	Sep 24, 2007	2.20	−5.80	Below flood stage	132
14	Jul 9, 2009	2.17	−5.83	Below flood stage	128

The worst floods along the Boulder Creek (CO)

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

September 12, 2013: 8.18 ft here, minor flooding

North 75TH St.CO · Sep 13, 2013 · 10.60 ft · Major · its highest

Gauges on the Boulder Creek (CO)

Flood gauges sharing the river's name, linked within 80 miles of one another.

Flood gauges on the Boulder Creek (CO)

North 75TH St.	CO	8.0	10.60 ft, Sep 13, 2013	1
Broadway St this gauge	CO	8.0	8.18 ft, Sep 12, 2013	0
Nederland	CO	5.5	5.50 ft, Jun 22, 1995	0
Orodell	CO	4.0	4.31 ft, Jun 6, 1921	0

Other gauges in Boulder County

Flood gauges in Boulder County

North 75TH St.	8.0	10.60 ft, Sep 13, 2013	1
Nederland	5.5	5.50 ft, Jun 22, 1995	0
Orodell	4.0	4.31 ft, Jun 6, 1921	0
Jamestown	4.5	4.60 ft, Apr 30, 1999	0
Nederland	4.5	5.37 ft, Jun 2, 1914	0
Lyons	8.0	13.00 ft, Sep 12, 2013	1
Eldorado Springs	5.0	5.43 ft, Sep 12, 2013	0
Lyons	6.0	6.50 ft, May 29, 1995	0

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

NOAA National Water Prediction Service, gauge BOCC2, 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.