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Hydrograph River at a Glance Download
Marys River near Philomath Stage (ft)Flow (cfs)Observed: 2.22 ft at 11:30AM Aug 25, 2014Observed: 2.22 ft at 12:00PM Aug 25, 2014Observed: 2.22 ft at 12:30PM Aug 25, 2014Observed: 2.22 ft at 1:00PM Aug 25, 2014Observed: 2.21 ft at 1:30PM Aug 25, 2014Observed: 2.21 ft at 2:00PM Aug 25, 2014Observed: 2.21 ft at 2:30PM Aug 25, 2014Observed: 2.21 ft at 3:00PM Aug 25, 2014Observed: 2.21 ft at 3:30PM Aug 25, 2014Observed: 2.21 ft at 4:00PM Aug 25, 2014Observed: 2.21 ft at 4:30PM Aug 25, 2014Observed: 2.21 ft at 5:00PM Aug 25, 2014Observed: 2.21 ft at 5:30PM Aug 25, 2014Observed: 2.21 ft at 6:00PM Aug 25, 2014Observed: 2.21 ft at 6:30PM Aug 25, 2014Observed: 2.21 ft at 7:00PM Aug 25, 2014Observed: 2.21 ft at 7:30PM Aug 25, 2014Observed: 2.21 ft at 8:00PM Aug 25, 2014Observed: 2.21 ft at 8:30PM Aug 25, 2014Observed: 2.22 ft at 9:00PM Aug 25, 2014Observed: 2.23 ft at 9:30PM Aug 25, 2014Observed: 2.23 ft at 10:00PM Aug 25, 2014Observed: 2.24 ft at 10:30PM Aug 25, 2014Observed: 2.24 ft at 11:00PM Aug 25, 2014Observed: 2.24 ft at 11:30PM Aug 25, 2014Observed: 2.24 ft at 12:00AM Aug 26, 2014Observed: 2.24 ft at 12:30AM Aug 26, 2014Observed: 2.24 ft at 1:00AM Aug 26, 2014Observed: 2.23 ft at 1:30AM Aug 26, 2014Observed: 2.23 ft at 2:00AM Aug 26, 2014Observed: 2.23 ft at 2:30AM Aug 26, 2014Observed: 2.23 ft at 3:00AM Aug 26, 2014Observed: 2.23 ft at 3:30AM Aug 26, 2014Observed: 2.23 ft at 4:00AM Aug 26, 2014Observed: 2.23 ft at 4:30AM Aug 26, 2014Observed: 2.23 ft at 5:00AM Aug 26, 2014Observed: 2.23 ft at 5:30AM Aug 26, 2014Observed: 2.23 ft at 6:00AM Aug 26, 2014Observed: 2.23 ft at 6:30AM Aug 26, 2014Observed: 2.23 ft at 7:00AM Aug 26, 2014Observed: 2.24 ft at 7:30AM Aug 26, 2014Observed: 2.24 ft at 8:00AM Aug 26, 2014Highest Observation: 2.25 ft at 8:30AM Aug 26, 2014Highest Observation: 2.25 ft at 9:00AM Aug 26, 2014Highest Observation: 2.25 ft at 9:30AM Aug 26, 2014Highest Observation: 2.25 ft at 10:00AM Aug 26, 2014Highest Observation: 2.25 ft at 10:30AM Aug 26, 2014Highest Observation: 2.25 ft at 11:00AM Aug 26, 2014Observed: 2.24 ft at 11:30AM Aug 26, 2014Observed: 2.24 ft at 12:00PM Aug 26, 2014Observed: 2.23 ft at 12:30PM Aug 26, 2014Observed: 2.22 ft at 1:00PM Aug 26, 2014Observed: 2.21 ft at 1:30PM Aug 26, 2014Observed: 2.21 ft at 2:00PM Aug 26, 2014Observed: 2.2 ft at 2:30PM Aug 26, 2014Observed: 2.2 ft at 3:00PM Aug 26, 2014Observed: 2.2 ft at 3:30PM Aug 26, 2014Observed: 2.2 ft at 4:00PM Aug 26, 2014Observed: 2.2 ft at 4:30PM Aug 26, 2014Observed: 2.19 ft at 5:00PM Aug 26, 2014Observed: 2.2 ft at 5:30PM Aug 26, 2014Observed: 2.19 ft at 6:00PM Aug 26, 2014Observed: 2.2 ft at 6:30PM Aug 26, 2014Observed: 2.2 ft at 7:00PM Aug 26, 2014Observed: 2.2 ft at 7:30PM Aug 26, 2014Observed: 2.2 ft at 8:00PM Aug 26, 2014Observed: 2.2 ft at 8:30PM Aug 26, 2014Observed: 2.2 ft at 9:00PM Aug 26, 2014Observed: 2.2 ft at 9:30PM Aug 26, 2014Observed: 2.2 ft at 10:00PM Aug 26, 2014Observed: 2.2 ft at 10:30PM Aug 26, 2014Observed: 2.2 ft at 11:00PM Aug 26, 2014Observed: 2.21 ft at 11:30PM Aug 26, 2014Observed: 2.21 ft at 12:00AM Aug 27, 2014Observed: 2.21 ft at 12:30AM Aug 27, 2014Observed: 2.21 ft at 1:00AM Aug 27, 2014Observed: 2.21 ft at 1:30AM Aug 27, 2014Observed: 2.21 ft at 2:00AM Aug 27, 2014Observed: 2.21 ft at 2:30AM Aug 27, 2014Observed: 2.21 ft at 3:00AM Aug 27, 2014Observed: 2.21 ft at 3:30AM Aug 27, 2014Observed: 2.21 ft at 4:00AM Aug 27, 2014Observed: 2.21 ft at 4:30AM Aug 27, 2014Observed: 2.21 ft at 5:00AM Aug 27, 2014Observed: 2.21 ft at 5:30AM Aug 27, 2014Observed: 2.21 ft at 6:00AM Aug 27, 2014Observed: 2.21 ft at 6:30AM Aug 27, 2014Observed: 2.21 ft at 7:00AM Aug 27, 2014Observed: 2.2 ft at 7:30AM Aug 27, 2014Observed: 2.2 ft at 8:00AM Aug 27, 2014Observed: 2.2 ft at 8:30AM Aug 27, 2014Observed: 2.21 ft at 9:00AM Aug 27, 2014Observed: 2.21 ft at 9:30AM Aug 27, 2014Observed: 2.21 ft at 10:00AM Aug 27, 2014Observed: 2.22 ft at 10:30AM Aug 27, 2014Observed: 2.22 ft at 11:00AM Aug 27, 2014Observed: 2.23 ft at 11:30AM Aug 27, 2014Observed: 2.22 ft at 12:00PM Aug 27, 2014Observed: 2.22 ft at 12:30PM Aug 27, 2014Observed: 2.22 ft at 1:00PM Aug 27, 2014Observed: 2.21 ft at 1:30PM Aug 27, 2014Observed: 2.21 ft at 2:00PM Aug 27, 2014Observed: 2.2 ft at 2:30PM Aug 27, 2014Observed: 2.2 ft at 3:00PM Aug 27, 2014Observed: 2.2 ft at 3:30PM Aug 27, 2014Observed: 2.2 ft at 4:00PM Aug 27, 2014Observed: 2.2 ft at 4:30PM Aug 27, 2014Observed: 2.2 ft at 5:00PM Aug 27, 2014Observed: 2.2 ft at 5:30PM Aug 27, 2014Observed: 2.2 ft at 6:00PM Aug 27, 2014Observed: 2.2 ft at 6:30PM Aug 27, 2014Observed: 2.2 ft at 7:00PM Aug 27, 2014Observed: 2.2 ft at 7:30PM Aug 27, 2014Observed: 2.2 ft at 8:00PM Aug 27, 2014Observed: 2.21 ft at 8:30PM Aug 27, 2014Observed: 2.21 ft at 9:00PM Aug 27, 2014Observed: 2.21 ft at 9:30PM Aug 27, 2014Observed: 2.21 ft at 10:00PM Aug 27, 2014Observed: 2.22 ft at 10:30PM Aug 27, 2014Observed: 2.22 ft at 11:00PM Aug 27, 2014Observed: 2.22 ft at 11:30PM Aug 27, 2014Observed: 2.22 ft at 12:00AM Aug 28, 2014Observed: 2.22 ft at 12:30AM Aug 28, 2014Observed: 2.22 ft at 1:00AM Aug 28, 2014Observed: 2.22 ft at 1:30AM Aug 28, 2014Observed: 2.22 ft at 2:00AM Aug 28, 2014Observed: 2.22 ft at 2:30AM Aug 28, 2014Observed: 2.22 ft at 3:00AM Aug 28, 2014Observed: 2.22 ft at 3:30AM Aug 28, 2014Observed: 2.23 ft at 4:00AM Aug 28, 2014Observed: 2.22 ft at 4:30AM Aug 28, 2014Observed: 2.22 ft at 5:00AM Aug 28, 2014Observed: 2.22 ft at 5:30AM Aug 28, 2014Observed: 2.22 ft at 6:00AM Aug 28, 2014Observed: 2.22 ft at 6:30AM Aug 28, 2014Observed: 2.22 ft at 7:00AM Aug 28, 2014Observed: 2.22 ft at 7:30AM Aug 28, 2014Observed: 2.22 ft at 8:00AM Aug 28, 2014Observed: 2.23 ft at 8:30AM Aug 28, 2014Observed: 2.23 ft at 9:00AM Aug 28, 2014Observed: 2.24 ft at 9:30AM Aug 28, 2014Observed: 2.24 ft at 10:00AM Aug 28, 2014Observed: 2.23 ft at 10:30AM Aug 28, 2014Observed: 2.23 ft at 11:00AM Aug 28, 2014Observed: 2.22 ft at 11:30AM Aug 28, 2014Observed: 2.22 ft at 12:00PM Aug 28, 2014Observed: 2.21 ft at 12:30PM Aug 28, 2014Observed: 2.21 ft at 1:00PM Aug 28, 2014Observed: 2.2 ft at 1:30PM Aug 28, 2014Observed: 2.2 ft at 2:00PM Aug 28, 2014Observed: 2.19 ft at 2:30PM Aug 28, 2014Observed: 2.18 ft at 3:00PM Aug 28, 2014Observed: 2.18 ft at 3:30PM Aug 28, 2014Observed: 2.18 ft at 4:00PM Aug 28, 2014Observed: 2.18 ft at 4:30PM Aug 28, 2014Observed: 2.18 ft at 5:00PM Aug 28, 2014Observed: 2.18 ft at 5:30PM Aug 28, 2014Observed: 2.18 ft at 6:00PM Aug 28, 2014Observed: 2.18 ft at 6:30PM Aug 28, 2014Observed: 2.18 ft at 7:00PM Aug 28, 2014Observed: 2.18 ft at 7:30PM Aug 28, 2014Observed: 2.18 ft at 8:00PM Aug 28, 2014Observed: 2.18 ft at 8:30PM Aug 28, 2014Observed: 2.18 ft at 9:00PM Aug 28, 2014Observed: 2.18 ft at 9:30PM Aug 28, 2014Observed: 2.18 ft at 10:00PM Aug 28, 2014Observed: 2.19 ft at 10:30PM Aug 28, 2014Observed: 2.2 ft at 11:00PM Aug 28, 2014Observed: 2.21 ft at 11:30PM Aug 28, 2014Observed: 2.21 ft at 12:00AM Aug 29, 2014Observed: 2.21 ft at 12:30AM Aug 29, 2014Observed: 2.21 ft at 1:00AM Aug 29, 2014Observed: 2.22 ft at 1:30AM Aug 29, 2014Observed: 2.22 ft at 2:00AM Aug 29, 2014Observed: 2.22 ft at 2:30AM Aug 29, 2014Observed: 2.22 ft at 3:00AM Aug 29, 2014Observed: 2.22 ft at 3:30AM Aug 29, 2014Observed: 2.22 ft at 4:00AM Aug 29, 2014Observed: 2.22 ft at 4:30AM Aug 29, 2014Observed: 2.22 ft at 5:00AM Aug 29, 2014Observed: 2.22 ft at 5:30AM Aug 29, 2014Observed: 2.22 ft at 6:00AM Aug 29, 2014Observed: 2.21 ft at 6:30AM Aug 29, 2014Observed: 2.21 ft at 7:00AM Aug 29, 2014Observed: 2.21 ft at 7:30AM Aug 29, 2014Observed: 2.21 ft at 8:00AM Aug 29, 2014Observed: 2.21 ft at 8:30AM Aug 29, 2014Observed: 2.21 ft at 9:00AM Aug 29, 2014Observed: 2.21 ft at 9:30AM Aug 29, 2014Observed: 2.21 ft at 10:00AM Aug 29, 2014Observed: 2.21 ft at 10:30AM Aug 29, 2014Observed: 2.21 ft at 11:00AM Aug 29, 2014Observed: 2.21 ft at 11:30AM Aug 29, 2014Observed: 2.2 ft at 12:00PM Aug 29, 2014Observed: 2.2 ft at 12:30PM Aug 29, 2014Observed: 2.2 ft at 1:00PM Aug 29, 2014Observed: 2.19 ft at 1:30PM Aug 29, 2014Observed: 2.2 ft at 2:00PM Aug 29, 2014Observed: 2.2 ft at 2:30PM Aug 29, 2014Observed: 2.19 ft at 3:00PM Aug 29, 2014Observed: 2.19 ft at 3:30PM Aug 29, 2014Observed: 2.19 ft at 4:00PM Aug 29, 2014Observed: 2.2 ft at 4:30PM Aug 29, 2014Observed: 2.2 ft at 5:00PM Aug 29, 2014Observed: 2.2 ft at 5:30PM Aug 29, 2014Observed: 2.2 ft at 6:00PM Aug 29, 2014Observed: 2.21 ft at 6:30PM Aug 29, 2014Observed: 2.21 ft at 7:00PM Aug 29, 2014Observed: 2.21 ft at 7:30PM Aug 29, 2014Observed: 2.21 ft at 8:00PM Aug 29, 2014Observed: 2.21 ft at 8:30PM Aug 29, 2014Observed: 2.21 ft at 9:00PM Aug 29, 2014Observed: 2.21 ft at 9:30PM Aug 29, 2014Observed: 2.21 ft at 10:00PM Aug 29, 2014Observed: 2.21 ft at 10:30PM Aug 29, 2014Observed: 2.21 ft at 11:00PM Aug 29, 2014Observed: 2.21 ft at 11:30PM Aug 29, 2014Observed: 2.21 ft at 12:00AM Aug 30, 2014Observed: 2.21 ft at 12:30AM Aug 30, 2014Observed: 2.21 ft at 1:00AM Aug 30, 2014Observed: 2.21 ft at 1:30AM Aug 30, 2014Observed: 2.21 ft at 2:00AM Aug 30, 2014Observed: 2.22 ft at 2:30AM Aug 30, 2014Observed: 2.21 ft at 3:00AM Aug 30, 2014Observed: 2.21 ft at 3:30AM Aug 30, 2014Observed: 2.21 ft at 4:00AM Aug 30, 2014Observed: 2.22 ft at 4:30AM Aug 30, 2014Observed: 2.22 ft at 5:00AM Aug 30, 2014Observed: 2.23 ft at 5:30AM Aug 30, 2014Observed: 2.23 ft at 6:00AM Aug 30, 2014Observed: 2.24 ft at 6:30AM Aug 30, 2014Observed: 2.24 ft at 7:00AM Aug 30, 2014Observed: 2.24 ft at 7:30AM Aug 30, 2014Observed: 2.24 ft at 8:00AM Aug 30, 2014Observed: 2.24 ft at 8:30AM Aug 30, 2014Observed: 2.24 ft at 9:00AM Aug 30, 2014Observed: 2.23 ft at 9:30AM Aug 30, 2014Observed: 2.23 ft at 10:00AM Aug 30, 2014Forecast: 2.31 ft 5:00PM Aug 30, 2014Highest Forecast: 2.4 ft 11:00PM Aug 30, 2014Forecast: 2.39 ft 5:00AM Aug 31, 2014Forecast: 2.31 ft 11:00AM Aug 31, 2014Forecast: 2.24 ft 5:00PM Aug 31, 2014Forecast: 2.2 ft 11:00PM Aug 31, 2014Forecast: 2.15 ft 5:00AM Sep 01, 2014Forecast: 2.13 ft 11:00AM Sep 01, 2014Forecast: 2.12 ft 5:00PM Sep 01, 2014Forecast: 2.11 ft 11:00PM Sep 01, 2014Forecast: 2.11 ft 5:00AM Sep 02, 2014Forecast: 2.11 ft 11:00AM Sep 02, 2014Forecast: 2.11 ft 5:00PM Sep 02, 2014Forecast: 2.11 ft 11:00PM Sep 02, 2014Forecast: 2.1 ft 5:00AM Sep 03, 2014Forecast: 2.1 ft 11:00AM Sep 03, 2014Forecast: 2.1 ft 5:00PM Sep 03, 2014Forecast: 2.1 ft 11:00PM Sep 03, 2014Forecast: 2.09 ft 5:00AM Sep 04, 2014Forecast: 2.09 ft 11:00AM Sep 04, 2014USGS--Water Resources of the United StatesPHIO3(plotting HGIRG) Graph Created (11:18AM Aug 30, 2014)ObservedForecast (issued 8:27AM Aug 30)Latest observed value: 2.23 ft at 10:00 AM PDT 30-Aug-2014. Flood Stage is 20 ft
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About this graph
Tabular Data (UTC)
Tabular Data (PDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Forecasts for the Marys River near Philomath are issued routinely year-round.
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Downstream Gauge Downstream Gauge - at Corvallis
Flood Categories (in feet)
Major Flood Stage:20.7
Moderate Flood Stage:0
Flood Stage:20
Action Stage:16

Historical Crests
(1) 21.53 ft on 01/19/2012
(2) 21.11 ft on 12/30/2005
(3) 20.91 ft on 01/15/1974
(4) 20.90 ft on 12/06/1981
(5) 20.89 ft on 12/16/1982
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(P): Preliminary values subject to further review.

Low Water Records
Zoom Level:16
KML Image
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
20.8 Above 20.8 ft, Expect widespread flooding in Philomath, especially on the south side in the vicinity of Chapel drive and Grange Hall Road, in central Benton County, and portions of Corvallis.
20.7 Above 20.7 ft, Expect road flooding in Philomath, especially the south part of town in the vicinity of Chapel Drive and Grange Hall Road. Portions of Highway 99W in Corvallis have historically been flooded at this level. If the Willamette River stage at Corvallis is at 18 ft or higher, widespread flooding of county roads and road clousures can be expected. If the Willamette at Corvallis is below 18 ft, roads may still be passable.
20.5 Above 20.5 ft, Expect flooding of some homes in the southern part of Corvallis to begin, especially when the Willamette is also running high. In south Corvallis, a trailer park and light industrial areas, including Evanite Fiber Plant, begin to flood. Flooding may begin in the vicinity of Chapel Drive and Grange Hall Road on the south side of Philomath. Problems with the sewers have historically begun in Philomath at this and higher stages.
20 Above 20.0 ft, Expect widespread low land and agricultural flooding. Some structures along the river may begin to flood.
About This Location Collapse

Latitude: 44.525000° N, Longitude: 123.334444° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 20 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 224.02 ft 244.02 ft  

Current/Historical Observations:

Additional Information Collapse
Archived Data 1976-2001 at USACE DataQuery
Archived Data 2001-present at USACE DataQuery
10-day Forecast/Trend, Northwest River Forecast Center
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Hydrologic Resources Additional Resources
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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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Page last modified: 5-Aug-2014 6:36 PM
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