U.S. Geological Survey
2013
Erosion and deposition for Fanno Creek, Oregon 2012
vector digital data
Reston, VA
U.S. Geological Survey
https://water.usgs.gov/lookup/getspatial?fannoCk_erosion_deposition_2012
In 2010, the U.S. Geological Survey (USGS) began investigating the sources and sinks
of organic matter in Fanno Creek, a tributary of the Tualatin River, Oregon. Organic matter,
more specifically organic carbon, is abundant in Fanno Creek and has been tied to a
variety of water-quality concerns. Since organic carbon is commonly found in the fine-grained,
organic-rich sediment covering much of the watershed, developing a better understanding of
sediment transport dynamics should greatly improve the quality of restoration efforts underway.
To address this, a geomorphic approach was adopted, including mapping fine sediment erosion
and deposition and measuring changes in sediment. Erosion and deposition mapping within
the geomorphic floodplain in the summer of 2012 was used to identify specific sources and
sinks of fine sediment and other features that might potentially contribute to the sediment
cycle. The distribution of mapped features along Fanno Creek varies by reach. Areas having
a high potential for erosion were greatest in the uppermost basin although other middle and
lower basin reaches had relatively large areas subject to erosion. Areal deposition is largest
in wide, low gradient wetland reaches such as in the middle basin.
These data were created to support assessment of erosional and depositional features on
Fanno Creek, Oregon. This mapping was used to identify potential sources and sinks of fine
sediment associated with organic carbon.
2012
ground condition
None planned
-122.798199
-122.698497
45.488730
45.392482
USGS Thesaurus
erosion
deposition
urban stream
sediment transport
floodplain
carbon
organic matter
fluvial geomorphology
inlandWaters
ISO 19115 Topic Category
geoscientificInformation
inlandWaters
environment
USGS Metadata Identifier
USGS:3e7ddcf8-9ff8-4f86-af38-399df7c117c1
Geographic Names Information System
Fanno Creek
Oregon
Pacific Northwest
Beaverton
Tigard
Tualatin River
None
The U.S. Geological Survey should be acknowledged as the data source in products derived from these data.
U.S. Geological Survey
Mackenzie Keith
Hydrologist
mailing
2130 SW 5th Avenue
Oregon Water Science Center
Portland
OR
97201
US
503-251-3474
mkeith@usgs.gov
https://water.usgs.gov/GIS/browse/fannoCk_erosion_deposition_2012.jpg
Illustration of data set
Portable Document Format (jpg)
None
Unclassified
None
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcGIS 10.0.5.4400
All feature mapping and erosion and deposition classifications were reviewed by team members to ensure mapping was spatially consistent.
Data are topologically correct in ArcGIS. Topolgy rules were used to edit features and verify that polygons were completely enclosed or did not overlap.
Data are complete. Feature mapping was reviewed by team members to ensure protocol was followed and that mapping was spatially consistent. Digitizing was completed at a scale of 1:1,000 or finer. Erosion and deposition within the Fanno Creek geomorphic floodplain were mapped from a variety of sources by two methods: 1) field mapping in the summer of 2012 during the low-flow period and, 2) digital mapping in the fall and winter of 2012-13. The full length of the stream was not field mapped due to private property access, heavy riparian cover, and time constraints. Locations or features associated with sediment sinks, such as in-channel bars or floodplain depressions, or sources, such as cut banks or mass failures, were recorded. Notes and features were logged with the aid of 1 to 2-meter resolution light detection and ranging (LiDAR) topography acquired in 2004 and 2007. LiDAR topography, LiDAR derivatives including height above water surface and slope maps, and 2010 aerial photography (15-cm resolution) were used as base layers for delineating feature boundaries where possible and were used as the sole method of delineation where not visited in the field. Erosion source and deposition sink mapping was limited by the areas visited in the field and the resolution of remotely sensed data. The classification scheme used in this study also does not address the magnitude of sediment erosion and deposition and scale of mapping makes it difficult to apply measured rates of erosion and deposition across a reach or the entire geomorphic floodplain. Best judgment was used to delineate feature boundaries where not visited in the field or obscured by vegetation or shadows.
Digitizing was completed at a scale of 1:1,000 or finer. Maximum cell size of the datasets used to identify features was 2 meters. No minimum mapping unit was used. Some small (less than 2 square meters) polygons are the result of reach delineation. However, other small polygons were mapped in the field.
Oregon Department of Geology and Mineral Industries
Watershed Sciences, Inc.
2009
LiDAR of Western Oregon and the Willamette Valley
raster digital data
http://www.oregongeology.org/sub/projects/olc/default.htm
digital elevation model
2007
ground condition
LiDAR, 2007
The LiDAR provided a base layer from which features were delineated.
Puget Sound Lidar Consortium
Oregon Department of Geology and Mineral Industries
City of Portland
TerraPoint
2008
Portland Hills
raster digital data
http://pugetsoundlidar.org/
digitial elevation model
2004
ground condition
LiDAR, 2004
The LiDAR provided a base layer from which features were delineated.
Metro Data Resource Center
U.S. Geological Survey
2010
6-inch resolution urban aerial imagery
raster digital data
http://www.oregonmetro.gov/rlisdiscovery
aerial photography
2010
ground condition
Photo, 2010
The aerial photography provided a base layer from which features were delineated.
U.S. Geological Survey
2011
Geomorphic Floodplain with Organic Matter (Biomass) Estimates for Fanno Creek, Oregon
vector digital data
https://water.usgs.gov/GIS/metadata/usgswrd/XML/fannoCk_fldpln.xml
online
2009
ground condition
Floodplain, 2009
The polygon digital data roughly defined the study area and extent of geomorphic mapping.
Field mapping took place between June and August of 2012. Zones of erosion and deposition within the geomorphic floodplain (Floodplain, 2009) were logged along with relative notes.
2012
Features observed in the field were digitized, or outlined, with a polyline feature class. Areas that were not visited in the field were digitized from remote sources(Lidar, 2004; Lidar, 2007, Photo, 2010) at a scale of 1:1,000 or finer.
2012
Points within a feature class containing attributes from the features were digitized in each enclosed area.
2012
An ESRI geodatabase topology rule of “must not have dangles" was used for editing. This required that all line features must touch lines from the same feature class at both endpoints.
2012
Delineation of channel and floodplain features and erosional or depositional designation was verified by project team members to ensure consistent delineation of features throughout the study area.
2012
Feature linework and point attributes features classes were converted to polygons with the "Feature to polygon" within ArcToolbox's "Data Management" tools.
2012
Polygons were intersected with a polygon feature class of the study area to assign reach names.
2012
Vector
GT-polygon composed of chains
2063
Transverse Mercator
0.9996
-123.0
0.0
500000.0
0.0
coordinate pair
0.000000002220024164500956
0.000000002220024164500956
meter
D North American 1983
GRS 1980
6378137.0
298.257222101
fannoCk_erosion_deposition_2012
Erosion and deposition of features along Fanno Creek, Oregon
U.S. Geological Survey
FID
Internal feature number.
ESRI
Sequential unique whole numbers that are automatically generated.
SHAPE
Feature geometry.
ESRI
Coordinates defining the features.
Feature
Geomorphic classification of the mapped feature along Fanno Creek, Oregon.
U.S. Geological Survey
Bank
Channel sides exposed at low flow and confines flows during non-flood periods. Typically identified by abrupt change in slope between the lower gradient floodplain and active channel zones. Mapping may include floodplain in areas where banks are narrow or too small to map from LiDAR and aerial photography. May have erosional and depositional designation.
U.S. Geological Survey
Bar
Lateral and medial bars composed of gravel, fine sediment, re-worked bed-protection material, branches and/or organic material within the active channel exposed and above the water surface during field mapping or during the low-flow period of aerial photograph acquisition. Typically has only depositional designation.
U.S. Geological Survey
Culvert
Culverts that were observed in the field. Not systematically mapped. Typically does not have erosional or depositional designation.
U.S. Geological Survey
Dam
May include beaver dams, log-jam dams, concrete water dams, or wood that fully or partially block the wetted channel. Features may be mapped across the channel even if there is only a partial blockage. May have erosional and/or depositional designation.
U.S. Geological Survey
Floodplain
Includes most of the terrestrial geomorphic floodplain. Mapping may include banks in areas where banks are narrow or too small to map from LiDAR and aerial photography. May have erosional and depositional designation.
U.S. Geological Survey
Low bench
Low areas within the active channel or are present as very low elevation floodplain surfaces adjacent to the active channel. Typically the result of mass wasting processes. Have varying degrees of vegetation from bare to grasses to shrubs or young trees.
U.S. Geological Survey
Reinforced
Areas that have been reinforced may include bed or bank protection in the form or riprap, concrete walls, posts, etc. Full bank heights were mapped as reinforced if the reinforced portion was only along or close to water level.
U.S. Geological Survey
Secondary water feature
Secondary water features can exist within the active channel or on the floodplain. These may include side channels, tributaries, wetlands, ponded water on the floodplain, or areas that would likely be innundated for most of the winter season. May have erosional and/or depositional designation.
U.S. Geological Survey
Valley wall/terrace wall
Typically steeper slopes outside of the active channel that separate parts of the floodplain or separate floodplain from areas outside the floodplain. Typically only erosional designation unless deposits on slope or at the base.
U.S. Geological Survey
Wetted channel
Mainstem Fanno Creek wetted channel. Mapping indicates the approximate extent of wetted channel at low-flow conditions but may include more or less area where obscured by vegetation. Erosion and deposition not typically classified except where channel bed was observed in the field and designation was clear. Erosion and deposition typically mapped as 'NA'.
U.S. Geological Survey
Erosion
Type of erosion.
U.S. Geological Survey
Fluvial
Erosion dominantly driven by fluvial processes. May include mass wasting or other erosion in some combination.
U.S. Geological Survey
Mass wasting
Erosion dominantly driven by mass wasting processes. May include fluvial or other erosion in some combination.
U.S. Geological Survey
Other
Areas of erosion that are not dominantly driven by mass wasting or fluvial processes. While not systematically mapped, these other types of erosion could include stormwater, hillslope, or biotic erosion.
U.S. Geological Survey
None/minimal
The area is not eroding or erosion is minimal.
U.S. Geological Survey
NA
This type of feature is not erosional or was not mapped for erosion, such as the wetted channel or reinforced features.
U.S. Geological Survey
Deposition
Type of deposition.
U.S. Geological Survey
Fluvial
Deposition dominantly driven by fluvial processes. May include mass wasting or other deposition in some combination.
U.S. Geological Survey
Mass wasting
Deposition dominantly driven by mass wasting processes. May include fluvial or other deposition in some combination.
U.S. Geological Survey
Other
Areas of deposition that are not dominantly driven by mass wasting or fluvial processes. While not systematically mapped, these other types of deposition could include stormwater, hillslope, or biotic erosion.
U.S. Geological Survey
None/minimal
The area is not depositional or deposition is minimal.
U.S. Geological Survey
NA
This type of feature is not depositional or was not mapped for deposition, such as the wetted channel.
U.S. Geological Survey
Notes
Text field of notes observed in the field or from remotely sensed data that may be relevant to the erosional or depositional environment. Abbreviations: E, erosion; D, deposition; FP, floodplain; MW, mass wasting; F, fluvial; US, upstream; DS, downstream; UC, undercut or undercutting; sed, sediment; RL, river left; veg, vegetation; rein, reinforced; HPC, hardpan clay.
U.S. Geological Survey
Notes observed in the field or from remotely sensed data that may be relevant to the erosional or depositional environment.
Reach
Study reach that contains the feature object.
U.S. Geological Survey
Beaverton-Hillsdale
Fanno Creek between river kilometer 26.9 and 22.4.
U.S. Geological Survey
Oleson
Fanno Creek between river kilometer 22.4 and 20.8.
U.S. Geological Survey
OES Wetlands
Fanno Creek between river kilometer 20.8 and 19.9. (OES, Oregon Episcopal School)
U.S. Geological Survey
Portland Golf Club
Fanno Creek between river kilometer 19.9 and 18.8.
U.S. Geological Survey
Vista Brook
Fanno Creek between river kilometer 18.8 and 16.0.
U.S. Geological Survey
Wonderland
Fanno Creek between river kilometer 16.0 and 14.2.
U.S. Geological Survey
Greenway
Fanno Creek between river kilometer 14.2 and 11.9.
U.S. Geological Survey
Englewood
Fanno Creek between river kilometer 11.9 and 10.4.
U.S. Geological Survey
Woodard
Fanno Creek between river kilometer 10.4 and 8.0.
U.S. Geological Survey
Fanno Creek Park
Fanno Creek between river kilometer 8.0 and 6.6.
U.S. Geological Survey
Bonita
Fanno Creek between river kilometer 6.6 and 4.5.
U.S. Geological Survey
Gentlewoods
Fanno Creek between river kilometer 4.5 and 2.4.
U.S. Geological Survey
Durham
Fanno Creek between river kilometer 2.4 and 0.
U.S. Geological Survey
SHAPE_Area
Area of feature in meters squared
ESRI
Positive real numbers that are automatically generated
U.S. Geological Survey
Michael Ierardi
IT Specialist
mailing
445 National Center
Reston
VA
20192
US
1-888-275-8747 (1-888-ASK-USGS)
mierardi@usgs.gov
Although these data have been used by the U.S. Geological Survey, U.S. Department of the Interior,
no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data.
The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the
U.S. Geological Survey in the use of these data, software, or related materials.
The use of firm, trade, or brand names in this report is for identification purposes only and does not
constitute endorsement by the U.S. Geological Survey. The names mentioned in this document may
be trademarks or registered trademarks of their respective trademark owners.
ESRI Geodatabase Feature Class
ArcGIS 10
PKZIP compression
Winzip
https://water.usgs.gov/GIS/dsdl/fannoCk_erosion_deposition_2012.zip
None. This dataset is provided by USGS as a public service.
20201117
U.S. Geological Survey
Ask USGS -- Water Webserver Team
mailing
445 National Center
Reston
VA
20192
1-888-275-8747 (1-888-ASK-USGS)
mierardi@usgs.gov
FGDC Content Standards for Digital Geospatial Metadata
FGDC-STD-001-1998