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Hydrograph River at a Glance Download
Clackamas River near Oregon City Stage (ft)Flow (cfs)Observed: 24.31 ft at 5:45PM Mar 03, 2015Observed: 24.26 ft at 6:00PM Mar 03, 2015Observed: 24.4 ft at 6:15PM Mar 03, 2015Observed: 24.43 ft at 6:30PM Mar 03, 2015Observed: 24.3 ft at 6:45PM Mar 03, 2015Observed: 24.38 ft at 7:00PM Mar 03, 2015Observed: 24.34 ft at 7:15PM Mar 03, 2015Observed: 24.37 ft at 7:30PM Mar 03, 2015Observed: 24.32 ft at 7:45PM Mar 03, 2015Observed: 24.36 ft at 8:00PM Mar 03, 2015Observed: 24.38 ft at 8:15PM Mar 03, 2015Observed: 24.34 ft at 8:30PM Mar 03, 2015Observed: 24.35 ft at 8:45PM Mar 03, 2015Observed: 24.37 ft at 9:15PM Mar 03, 2015Observed: 24.34 ft at 9:45PM Mar 03, 2015Observed: 24.34 ft at 10:00PM Mar 03, 2015Observed: 24.27 ft at 10:15PM Mar 03, 2015Observed: 24.36 ft at 10:30PM Mar 03, 2015Observed: 24.32 ft at 10:45PM Mar 03, 2015Observed: 24.36 ft at 11:00PM Mar 03, 2015Highest Observation: 24.46 ft at 11:15PM Mar 03, 2015Observed: 24.35 ft at 11:30PM Mar 03, 2015Observed: 24.38 ft at 11:45PM Mar 03, 2015Observed: 24.29 ft at 12:00AM Mar 04, 2015Observed: 24.35 ft at 12:15AM Mar 04, 2015Observed: 24.31 ft at 12:45AM Mar 04, 2015Observed: 24.34 ft at 1:00AM Mar 04, 2015Observed: 24.25 ft at 1:15AM Mar 04, 2015Observed: 24.26 ft at 1:30AM Mar 04, 2015Observed: 24.28 ft at 1:45AM Mar 04, 2015Observed: 24.36 ft at 2:00AM Mar 04, 2015Observed: 24.29 ft at 2:15AM Mar 04, 2015Observed: 24.42 ft at 3:00AM Mar 04, 2015Observed: 24.27 ft at 3:15AM Mar 04, 2015Observed: 24.26 ft at 3:30AM Mar 04, 2015Observed: 24.36 ft at 3:45AM Mar 04, 2015Observed: 24.31 ft at 4:15AM Mar 04, 2015Observed: 24.28 ft at 4:45AM Mar 04, 2015Observed: 24.29 ft at 5:00AM Mar 04, 2015Observed: 24.32 ft at 5:15AM Mar 04, 2015Observed: 24.3 ft at 5:45AM Mar 04, 2015Observed: 24.27 ft at 6:00AM Mar 04, 2015Observed: 24.22 ft at 6:15AM Mar 04, 2015Observed: 24.3 ft at 6:45AM Mar 04, 2015Observed: 24.28 ft at 7:00AM Mar 04, 2015Observed: 24.35 ft at 7:15AM Mar 04, 2015Observed: 24.29 ft at 7:30AM Mar 04, 2015Observed: 24.3 ft at 7:45AM Mar 04, 2015Observed: 24.29 ft at 8:00AM Mar 04, 2015Observed: 24.35 ft at 8:15AM Mar 04, 2015Observed: 24.23 ft at 8:30AM Mar 04, 2015Observed: 24.27 ft at 8:45AM Mar 04, 2015Observed: 24.26 ft at 9:00AM Mar 04, 2015Observed: 24.28 ft at 9:15AM Mar 04, 2015Observed: 24.25 ft at 9:30AM Mar 04, 2015Observed: 24.23 ft at 9:45AM Mar 04, 2015Observed: 24.23 ft at 10:45AM Mar 04, 2015Observed: 24.22 ft at 11:00AM Mar 04, 2015Observed: 24.25 ft at 11:15AM Mar 04, 2015Observed: 24.23 ft at 11:30AM Mar 04, 2015Observed: 24.28 ft at 11:45AM Mar 04, 2015Observed: 24.27 ft at 12:15PM Mar 04, 2015Observed: 24.24 ft at 12:30PM Mar 04, 2015Observed: 24.31 ft at 12:45PM Mar 04, 2015Observed: 24.28 ft at 1:00PM Mar 04, 2015Observed: 24.31 ft at 1:15PM Mar 04, 2015Observed: 24.3 ft at 1:30PM Mar 04, 2015Observed: 24.24 ft at 1:45PM Mar 04, 2015Observed: 24.25 ft at 2:00PM Mar 04, 2015Observed: 24.24 ft at 2:45PM Mar 04, 2015Observed: 24.24 ft at 3:00PM Mar 04, 2015Observed: 24.25 ft at 3:15PM Mar 04, 2015Observed: 24.19 ft at 3:30PM Mar 04, 2015Observed: 24.23 ft at 9:30PM Mar 04, 2015Observed: 24.22 ft at 9:45PM Mar 04, 2015Observed: 24.2 ft at 10:00PM Mar 04, 2015Observed: 24.33 ft at 10:15PM Mar 04, 2015Observed: 24.34 ft at 10:30PM Mar 04, 2015Observed: 24.22 ft at 10:45PM Mar 04, 2015Observed: 24.33 ft at 11:00PM Mar 04, 2015Observed: 24.24 ft at 11:15PM Mar 04, 2015Observed: 24.25 ft at 11:30PM Mar 04, 2015Observed: 24.26 ft at 11:45PM Mar 04, 2015Observed: 24.27 ft at 12:00AM Mar 05, 2015Observed: 24.3 ft at 12:15AM Mar 05, 2015Observed: 24.29 ft at 12:30AM Mar 05, 2015Observed: 24.31 ft at 12:45AM Mar 05, 2015Observed: 24.33 ft at 1:00AM Mar 05, 2015Observed: 24.24 ft at 1:15AM Mar 05, 2015Observed: 24.34 ft at 1:30AM Mar 05, 2015Observed: 24.31 ft at 1:45AM Mar 05, 2015Observed: 24.15 ft at 2:00AM Mar 05, 2015Observed: 24.26 ft at 2:15AM Mar 05, 2015Observed: 24.18 ft at 2:30AM Mar 05, 2015Observed: 24.21 ft at 2:45AM Mar 05, 2015Observed: 24.21 ft at 3:00AM Mar 05, 2015Observed: 24.25 ft at 3:15AM Mar 05, 2015Observed: 24.26 ft at 3:30AM Mar 05, 2015Observed: 24.28 ft at 4:00AM Mar 05, 2015Observed: 24.26 ft at 4:15AM Mar 05, 2015Observed: 24.25 ft at 4:30AM Mar 05, 2015Observed: 24.18 ft at 4:45AM Mar 05, 2015Observed: 24.25 ft at 5:00AM Mar 05, 2015Observed: 24.34 ft at 5:15AM Mar 05, 2015Observed: 24.2 ft at 5:30AM Mar 05, 2015Observed: 24.2 ft at 5:45AM Mar 05, 2015Observed: 24.28 ft at 6:00AM Mar 05, 2015Observed: 24.16 ft at 6:15AM Mar 05, 2015Observed: 24.17 ft at 6:30AM Mar 05, 2015Observed: 24.24 ft at 6:45AM Mar 05, 2015Observed: 24.22 ft at 7:00AM Mar 05, 2015Observed: 24.23 ft at 7:15AM Mar 05, 2015Observed: 24.24 ft at 7:30AM Mar 05, 2015Observed: 24.21 ft at 7:45AM Mar 05, 2015Observed: 24.2 ft at 8:00AM Mar 05, 2015Observed: 24.21 ft at 8:15AM Mar 05, 2015Observed: 24.14 ft at 8:30AM Mar 05, 2015Observed: 24.22 ft at 8:45AM Mar 05, 2015Observed: 24.17 ft at 9:00AM Mar 05, 2015Observed: 24.24 ft at 9:30AM Mar 05, 2015Observed: 24.24 ft at 9:45AM Mar 05, 2015Observed: 24.22 ft at 10:00AM Mar 05, 2015Observed: 24.21 ft at 10:15AM Mar 05, 2015Observed: 24.21 ft at 10:30AM Mar 05, 2015Observed: 24.12 ft at 10:45AM Mar 05, 2015Observed: 24.13 ft at 11:00AM Mar 05, 2015Observed: 24.19 ft at 11:15AM Mar 05, 2015Observed: 24.21 ft at 11:30AM Mar 05, 2015Observed: 24.16 ft at 11:45AM Mar 05, 2015Observed: 24.22 ft at 12:00PM Mar 05, 2015Observed: 24.23 ft at 12:15PM Mar 05, 2015Observed: 24.2 ft at 12:30PM Mar 05, 2015Observed: 24.21 ft at 12:45PM Mar 05, 2015Observed: 24.23 ft at 1:00PM Mar 05, 2015Observed: 24.21 ft at 1:15PM Mar 05, 2015Observed: 24.21 ft at 1:30PM Mar 05, 2015Observed: 24.17 ft at 1:45PM Mar 05, 2015Observed: 24.25 ft at 2:00PM Mar 05, 2015Observed: 24.25 ft at 2:30PM Mar 05, 2015Observed: 24.13 ft at 3:00PM Mar 05, 2015Observed: 24.13 ft at 3:15PM Mar 05, 2015Observed: 24.19 ft at 3:30PM Mar 05, 2015Observed: 24.18 ft at 3:45PM Mar 05, 2015Observed: 24.15 ft at 4:00PM Mar 05, 2015Observed: 24.16 ft at 4:15PM Mar 05, 2015Observed: 24.16 ft at 4:30PM Mar 05, 2015Observed: 24.14 ft at 4:45PM Mar 05, 2015Observed: 24.16 ft at 5:00PM Mar 05, 2015Observed: 24.14 ft at 5:15PM Mar 05, 2015Observed: 24.15 ft at 5:30PM Mar 05, 2015Observed: 24.19 ft at 5:45PM Mar 05, 2015Observed: 24.22 ft at 6:00PM Mar 05, 2015Observed: 24.24 ft at 6:15PM Mar 05, 2015Observed: 24.24 ft at 6:45PM Mar 05, 2015Observed: 24.22 ft at 7:15PM Mar 05, 2015Observed: 24.2 ft at 12:30AM Mar 06, 2015Observed: 24.22 ft at 12:45AM Mar 06, 2015Observed: 24.14 ft at 1:00AM Mar 06, 2015Observed: 24.2 ft at 1:15AM Mar 06, 2015Observed: 24.09 ft at 1:30AM Mar 06, 2015Observed: 24.18 ft at 1:45AM Mar 06, 2015Observed: 24.11 ft at 2:00AM Mar 06, 2015Observed: 24.22 ft at 2:15AM Mar 06, 2015Observed: 24.15 ft at 2:30AM Mar 06, 2015Observed: 24.21 ft at 2:45AM Mar 06, 2015Observed: 24.14 ft at 3:00AM Mar 06, 2015Observed: 24.16 ft at 3:15AM Mar 06, 2015Observed: 24.24 ft at 3:30AM Mar 06, 2015Observed: 24.21 ft at 3:45AM Mar 06, 2015Observed: 24.23 ft at 4:00AM Mar 06, 2015Observed: 24.19 ft at 4:15AM Mar 06, 2015Observed: 24.24 ft at 4:30AM Mar 06, 2015Observed: 24.18 ft at 4:45AM Mar 06, 2015Observed: 24.16 ft at 5:00AM Mar 06, 2015Observed: 24.17 ft at 5:15AM Mar 06, 2015Observed: 24.16 ft at 5:30AM Mar 06, 2015Observed: 24.18 ft at 5:45AM Mar 06, 2015Observed: 24.25 ft at 6:00AM Mar 06, 2015Observed: 24.14 ft at 6:15AM Mar 06, 2015Observed: 24.23 ft at 6:30AM Mar 06, 2015Observed: 24.16 ft at 6:45AM Mar 06, 2015Observed: 24.21 ft at 7:00AM Mar 06, 2015Observed: 24.21 ft at 7:15AM Mar 06, 2015Observed: 24.12 ft at 7:30AM Mar 06, 2015Observed: 24.17 ft at 7:45AM Mar 06, 2015Observed: 24.19 ft at 8:00AM Mar 06, 2015Observed: 24.23 ft at 8:15AM Mar 06, 2015Observed: 24.24 ft at 8:30AM Mar 06, 2015Observed: 24.21 ft at 8:45AM Mar 06, 2015Observed: 24.2 ft at 9:00AM Mar 06, 2015Observed: 24.09 ft at 9:15AM Mar 06, 2015Observed: 24.23 ft at 9:30AM Mar 06, 2015Observed: 24.2 ft at 9:45AM Mar 06, 2015Observed: 24.14 ft at 10:00AM Mar 06, 2015Observed: 24.17 ft at 10:15AM Mar 06, 2015Observed: 24.13 ft at 10:30AM Mar 06, 2015Observed: 24.1 ft at 10:45AM Mar 06, 2015Observed: 24.2 ft at 11:00AM Mar 06, 2015Observed: 24.14 ft at 11:15AM Mar 06, 2015Observed: 24.19 ft at 11:30AM Mar 06, 2015Observed: 24.09 ft at 11:45AM Mar 06, 2015Observed: 24.11 ft at 1:15PM Mar 06, 2015Highest Forecast: 24.12 ft 10:00PM Mar 06, 2015Forecast: 24.11 ft 4:00AM Mar 07, 2015Forecast: 24.1 ft 10:00AM Mar 07, 2015Forecast: 24.09 ft 4:00PM Mar 07, 2015Forecast: 24.08 ft 10:00PM Mar 07, 2015Forecast: 24.07 ft 5:00AM Mar 08, 2015Forecast: 24.07 ft 11:00AM Mar 08, 2015Forecast: 24.06 ft 5:00PM Mar 08, 2015Forecast: 24.05 ft 11:00PM Mar 08, 2015Forecast: 24.05 ft 5:00AM Mar 09, 2015Forecast: 24.04 ft 11:00AM Mar 09, 2015Forecast: 24.03 ft 5:00PM Mar 09, 2015Forecast: 24.02 ft 11:00PM Mar 09, 2015Forecast: 24.01 ft 5:00AM Mar 10, 2015Forecast: 24 ft 11:00AM Mar 10, 2015Forecast: 23.99 ft 5:00PM Mar 10, 2015Forecast: 24 ft 11:00PM Mar 10, 2015Forecast: 24.01 ft 5:00AM Mar 11, 2015Forecast: 24.02 ft 11:00AM Mar 11, 2015Forecast: 24.02 ft 5:00PM Mar 11, 2015USGS--Water Resources of the United StatesCOCO3(plotting HGIRP) Graph Created (5:32PM Mar 6, 2015)ObservedForecast (issued 7:34AM Mar 6)Latest observed value: 24.11 ft at 1:15 PM PST 6-Mar-2015. Flood Stage is 39 ft
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About this graph
Tabular Data (UTC)
Tabular Data (PST)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Forecasts for the Clackamas River near Oregon City are issued routinely year-round.
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Upstream Gauge - near Estacada Upstream Gauge Downstream Gauge Downstream Gauge - at Portland
Flood Categories (in feet)
Major Flood Stage: 46
Moderate Flood Stage: 0
Flood Stage: 39
Action Stage: 38
Low Stage (in feet): 0

Historic Crests
(1) 45.41 ft on 01/02/2009
(2) 42.52 ft on 01/17/2011
(3) 40.64 ft on 01/11/2006
(4) 40.61 ft on 12/31/2005
(5) 39.53 ft on 01/20/2012
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 39.53 ft on 01/20/2012
(2) 42.52 ft on 01/17/2011
(3) 45.41 ft on 01/02/2009
(4) 39.35 ft on 11/07/2006
(5) 40.64 ft on 01/11/2006
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.

Zoom Level:16
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Gauge LocationGauge Map Marker
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 Collapse
If you notice any errors in the below information, please contact our Webmaster
46 Above 46 feet, expect major flooding of some residences and buildings along the lower Clackamas River, including the mobile home park just downstream of Carver Bridge.
42 Above 42.0 ft, expect flooding of parks, agricultural land, and low-lying areas along the lower Clackamas River from the Carver Bridge down to the confluence with the Willamette.
39 Above 39.0 ft, expect minor flooding of low areas along the lower Clackamas River, including Clackamette Park, the Oregon City shopping center, and some agricultural land downstream of Carver Bridge.
Photos
(1) Upstream view
(2) Downstream view
About This Location Collapse

Latitude: 45.379722° N, Longitude: 122.578056° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 39 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 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other 0 ft 39 ft  

Current/Historical Observations:

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10-day Forecast/Trend, Northwest River Forecast Center
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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
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Portland Weather Forecast Office
5241 NE 122nd Avenue
Portland, OR 97230-1089
(503) 261-9246
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Page last modified: 12-Feb-2015 9:31 PM
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