Colgan Creek near Santa Rosa water level

Name: Colgan Creek near Santa Rosa water level (U.S. Geological Survey)
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

River gauge, Colgan Creek, California, United States

Directions

Below flood stage

Water level

97.69ft Steady over the last 24 hours

Measured Oct 20, 2026, 09:15 PM PDT (12 min ago)

Flow: 0.0 cfs

History

7 days

Water level Minor flood stage

What this means

The gauge at Colgan Creek near Santa Rosa reads 97.69 ft, a normal level.

It is 8.31 ft below the flood stage of 106.00 ft.

The level has held steady over the past 24 hours. Over the past 30 days it has moved between 97.68 ft and 97.70 ft.

Fall is often low-water season on rivers, until steadier rain returns.

Judged against the official flood stage for this gauge. How to read levels

What the stage means on the water

A normal level is usually prime time for floating and wade fishing, as long as the weather holds upstream.

The National Weather Service puts flood stage for this gauge at 106.00 ft, still 8.31 ft away.

What happens at each level

109.00 ft: Major floodplain inundation in vicinity of Elsie Allen High School and possibly elsewhere along Colgan Creek near Santa Rosa. Bellevue Avenue also heavily inundated by flood waters and possibly impassable by vehicle and foot traffic. Roadway and sidewalk manhole covers may be backpressured and missing.
108.00 ft: Adjacent maintenance road on north (right bank) side of channel flooded. Culvert that serves Colgan Creek beneath Burgess Drive fully submerged and likely backwatered. Channel banks overtopped and Elsie Allen ballfield begins to flood. NWS will issue a Flash Flood Warning, if not yet already issued.
106.00 ft: Adjacent maintenance road on north (right bank) side of channel flooded downstream of Burgess Drive bridge. Creek water levels have reached the elevation of storm drains serving runoff on Bellevue Avenue, so evacuation of runoff from the roadway and sidewalk may be limited or halted. Resultant roadway runoff may build up, causing localized urban roadway flooding. NWS will issue an Urban/Small Stream Advisory, if not yet already issued.
104.00 ft: Action Stage. Many adjacent storm drain outlets within the creek channel that serve surrounding floodplain and roadways in the vicinity of Elsie Allen High School are submerged and may begin to backwater. NWS may issue a Flash Flood Watch, if not yet already issued.
97.69 ft: Right now

Impact statements from the U.S. National Weather Service.

Weather at the gauge

The forecast is not available right now.

Sunrise 07:26 AM Sunset 06:26 PM Daylight 10 hr, 59 min Waxing gibbous 74%

Map

Other gauges on Colgan Creek

Gauge	Level	Compared with normal	24 hours	Distance
Colgan Creek near SebastopolRiver gauge, Colgan Creek	67.72 ft	Below flood stage	+0.01 ft	2.7 mi

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Santa Rosa C A Santa RosaRiver gauge	23.25 ft	Below flood stage	+0.04 ft	2.4 mi
Matanzas C A Santa RosaRiver gauge	155.18 ft	Below flood stage	+0.03 ft	3.0 mi
Laguna De Santa Rosa A Stony Point Road near CotatiRiver gauge, Laguna De Santa Rosa A Stony Point Road	73.22 ft	Below flood stage	+0.03 ft	3.5 mi
Copeland C A Rohnert ParkRiver gauge	1.29 ft	Below flood stage	±0	4.4 mi
Santa Rosa C A Willowside Road near Santa RosaRiver gauge, Santa Rosa C A Willowside Road	57.75 ft	Below flood stage	+0.03 ft	5.0 mi
Laguna De Santa Rosa Creek near SebastopolRiver gauge, Laguna De Santa Rosa Creek	55.48 ft	Below flood stage	+0.01 ft	5.5 mi
Mark West Creek near Mirabel HeightsRiver gauge, Mark West Creek	38.69 ft	Below flood stage	+0.01 ft	9 mi
Sonoma Creek A KenwoodRiver gauge	0.0 cfs	Low	±0	9 mi

Questions and answers

What is flood stage for Colgan Creek near Santa Rosa?

The official flood stage is 106.00 ft. The level is currently 8.31 ft below it.

Is gage height the same as water depth?

No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.

What is the water level of Colgan Creek near Santa Rosa today?

On Oct 20, 2026, 09:15 PM PDT, the water level was 97.69 ft. Steady over the last 24 hours.

Is Colgan Creek near Santa Rosa rising or falling?

Steady over the last 24 hours. Steady over the last 7 days.

Is the level of Colgan Creek near Santa Rosa normal?

Below flood stage. Judged against the official flood stage for this gauge.

How often is this data updated?

The U.S. Geological Survey publishes a new reading every 15 minutes. This page refreshes within minutes of each update.

Where does this data come from?

The values come directly from the U.S. Geological Survey, the official operator of this gauge, and are in the public domain. We do not estimate or model live values.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:11465690 (Agency page)
Coordinates: 38.40210, -122.73301 (WGS84)
Vertical datum: NAVD88
Update interval: every 15 minutes
Licence: Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

Parameter	Last value	Time (UTC)	Quality
Water level	97.69 ft	2026-10-21 04:15	Provisional
Flow	0.0 cfs	2026-10-21 04:15	Provisional

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How to cite

U.S. Geological Survey: Colgan Creek near Santa Rosa (usgs:11465690). Accessed October 21, 2026 via Nivelmap, https://nivelmap.com/en/united-states/california/colgan-creek-near-santa-rosa

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer