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South Saint Vrain Creek (CO) above Lyons

Highest listed crest 6.50 ftFlood stage 6.0 ft1 crests since 1995

The South Saint Vrain Creek (CO) above Lyons crested above flood stage 1 time among the 1 crests the National Weather Service lists from 1995 to 1995. The highest, 6.50 ft on May 29, 1995, was minor flooding, 0.50 feet above flood stage.

The gauge

Highest listed crest
6.50 ft
May 29, 1995; 2,550 cubic feet per second
Flood stage
6.0 ft
Major flooding from 13.0 ft
Crests at major
0
1 above flood stage
Most recent flood crest
May 29, 1995
6.50 ft, minor flooding
Location
Boulder County
Near Longmont (11.5 mi), Boulder (12.9 mi)
Identifiers
NWS LINC2
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 Saint Vrain Creek (CO) above Lyons
Action stage5.00—The level at which the NWS or its partners begin to take action
Flood stage (minor)6.01May 29, 1995Minimal or no property damage, but possibly some public threat
Moderate flood stage9.50—Some inundation of structures and roads near the stream
Major flood stage13.00—Extensive inundation of structures and roads

Every listed crest

1 crests from 1995 to 1995. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the South Saint Vrain Creek (CO) above Lyons, 1995 to 1995 68101214ft Flood stage 6.0 ftMajor 13.0 ft May 29, 1995: 6.50 ft, minor flooding; 2,550 cubic feet per second Highest, 6.50 ft, May 29, 1995 199520002005
  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, South Saint Vrain Creek (CO) above Lyons
1May 29, 19956.50+0.50Minor2,550

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
Eldorado Springs5.05.43 ft, Sep 12, 20130

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

NOAA National Water Prediction Service, gauge LINC2, 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.