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Flood inundation depth for a flow of 2,578 cfs (stage 15) at gage 14211500, Johnson Creek near Sycamore, Oregon (sycor_15.tif)

Dates

Publication Date
Time Period
2010-11-26
Time Period
2014-07-09
Time Period
2014-09-07

Citation

​Stonewall, A.J., and Beal, B.A., 2017, Flood inundation mapping data for Johnson Creek near Sycamore, Oregon: U.S. Geological Survey data release, https://doi.org/10.5066/F75X273G.

Summary

The basis for these features is U.S. Geological Survey Scientific Investigations Report 2017-5024 Flood Inundation Mapping Data for Johnson Creek near Sycamore, Oregon. The domain of the HEC-RAS hydraulic model is a 12.9-mile reach of Johnson Creek from just upstream of SE 174th Avenue in Portland, Oregon, to its confluence with the Willamette River. Some of the hydraulics used in the model were taken from Federal Emergency Management Agency, 2010, Flood Insurance Study, City of Portland, Oregon, Multnomah, Clackamas, and Washington Counties, Volume 1 of 3, November 26, 2010. The Digital Elevation Model (DEM) utilized for the project was developed from lidar data flown in 2015 and provided by the Oregon Department of Geology and Mineral [...]

Contacts

Point of Contact :
Adam J. Stonewall or Information Officer
Originator :
Adam J. Stonewall, Benjamin A. Beal
Metadata Contact :
Tana Haluska
Publisher :
U.S. Geological Survey
Distributor :
ScienceBase Team

Attached Files

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sycor_15_raster.zip 7.96 MB

Purpose

This raster represents modeled flood inundation depth of a 12.9 mile reach of Johnson Creek from just upstream of SE 174th Avenue in Portland, Oregon to the confluence with the Willamette River. This raster corresponds to a flow of 2,578 cfs at the gage 14211500, Johnson Creek near Sycamore, Oregon, and will be used on the U.S. Geological Survey Flood Inundation Mapper website.

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  • USGS Data Release Products

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