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| 28.0 |
ABOVE 28 FT...EXPECT MAJOR FLOODING ALONG THE RIVER FROM ESTACADA DOWNSTREAM TO THE CONFLUENCE WITH THE WILLAMETTE RIVER. THE MOST SEVERE IMPACTS WILL LIKELY BE IN THE CARVER AREA...ALONG WITH THE DEVELOPED AREAS NEAR THE CONFLUENCE OF THE CLACKAMAS AND WILLAMETTE RIVERS. |
| 25.0 |
ABOVE 25 FT...EXPECT MAJOR FLOOD DAMAGE AT PARKS ALONG THE RIVER. ALSO EXPECT FLOODING IN CARVER...ALONG WITH NUMEROUS HOMES ALONG THE CLACKAMAS RIVER FROM ESTACADA DOWNSTREAM TO THE CONFLUENCE WITH THE WILLAMETTE. |
| 23.0 |
ABOVE 23 FT...EXPECT FLOODING TO BEGIN IN THE LIGHT INDUSTRIAL AREAS NEAR THE CONFLUENCE OF THE CLACKAMAS AND WILLAMETTE RIVERS. A TRAILER COURT AT CARVER IS THREATENED AT THIS POINT. SOME ACCESS ROADS ARE FLOODED AND CLOSED ABOVE THIS LEVEL. |
| 21.0 |
ABOVE 21 FT...EXPECT WIDESPREAD FLOODING OF LOWLAND AND AGRICULTURAL LAND. NUMEROUS PARKS ALONG THE RIVER ARE ALSO THREATENED WITH FLOODING. |
| 20.0 |
ABOVE 20 FT...EXPECT LOWLAND FLOODING FROM ESTACADA SEVERAL MILES DOWNSTREAM TO THE CONFLUENCE WITH THE WILLAMETTE RIVER. |
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Latitude: 45.301000° N,
Longitude: 122.354000° W,
Horizontal Datum:
NAD83
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 |
N/A |
N/A |
Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps |
| NGVD 29 |
N/A |
N/A |
Older USGS topographic maps, NGVD29 benchmarks |
| MSL |
N/A |
N/A |
Older USGS topographic maps, MSL benchmarks |
| Other |
286.93 ft |
306.93 ft |
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Hydrologic Resources
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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. |
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NWS Information |
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