National Weather Service Advanced Hydrologic Prediction Service

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Weather Forecast Office Denver/Boulder, CO

Colorado Basin River Forecast Center

Hydrograph

River at a Glance

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About this graph

Tabular Data (UTC)

Tabular Data (MST)

Datum: NGVD29

Metadata

NOTE: Gauge reading affected by reservoir operations.

NOTE: Gauge reading may be affected by ice during freezing weather from November to April.

NOTE: Forecasts for the Blue River (CO) below Dillon are issued routinely year-round.

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Upstream Gauge

Downstream Gauge

Flood Categories (in feet)

Major Flood Stage:	7
Moderate Flood Stage:	5.5
Flood Stage:	4
Action Stage:	3.5
Low Stage (in feet):	-9999

Historic Crests
(1) 3.95 ft on 06/22/1983
(2) 3.88 ft on 05/25/1984
(3) 3.83 ft on 06/10/1985
(4) 3.78 ft on 06/17/2015
(5) 3.76 ft on 07/14/1995
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 3.42 ft on 06/14/2016
(2) 3.78 ft on 06/17/2015
(3) 3.68 ft on 06/08/2014
(4) 1.41 ft on 09/25/2013
(5) 1.07 ft on 06/06/2012
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to www.floodsmart.gov.

Show FEMA's National Flood Hazard Layers

Zoom Level:13

	Gauge Location	Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.

Flood Impacts & Photos

If you notice any errors in the below information, please contact our Webmaster
7	Widespread, major flooding occurs with several bridges overtopped downstream of Dillon Dam. Many roads, homes and businesses are impacted.
6.5	Water flows over the 6th Street bridge and into businesses in Silverthorne.
6	Colorado Highway 9 is overtopped near Silverthorne.
5	Homes flood along the Blue River in Silverthorne.
4	Homes flood in the South 40 Subdivision in northern Silverthorne.
3.7	Water approaches yards in the South 40 Subdivision in northern Silverthorne and walkways along the Blue River in Silverthorne.
Photos (1) Looking Upstream (2) Looking Downstream

About This Location

Latitude: 39.625600° N, Longitude: 106.065800° W, Horizontal Datum: NAD27

River Stage Reference Frame	Gauge Height	Flood Stage	Uses
NWS stage	0 ft	4 ft	Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum	Elevation (gauge height = 0)	Elevation (gauge height = flood stage)	Elevation information source
NAVD88	Not Available	Not Available	Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29	8760 ft	8764 ft	Older USGS topographic maps, NGVD29 benchmarks
MSL	Not Available	Not Available	Older USGS topographic maps, MSL benchmarks
Other	Not Available	Not Available

Current/Historical Observations:

U.S. Geological Survey (USGS) Data and Site Info for Dillon

Additional Information

River stage observations provided by the U.S. Geological Survey in cooperation with Denver Water

Resources

Hydrologic Resources

Additional Resources

Collaborative Agencies

The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.

NWS Information

National Weather Service
Denver/Boulder Weather Forecast Office
325 Broadway
Boulder, CO 80305-3328
(303) 494-4221
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Page last modified: 4-Mar-2019 11:28 PM

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