Tualatin River Watershed Data Dictionary

Metadata for STR24

Documentation for the Tualatin Streams Layer - STR24

Three primary layers were combined to create this layer:

1) odfstrwb Oregon Dept. of Forestry streams layer with fish use and stream size attributes.

2) dlg24tbq24 USGS dlg streams to fill gaps left by other layers These were downloaded via FTP by 7.5 min quad and appended into a single coverage.

3) strms_eb Metro streams layer

Each of these layers was first clipped to the tualatin basin and then intersected with the quads layer for cleaner appending. The source of each stream arc has been maintained in the item src_agen. Item description: stream-code ODF code that captures fish use, domestic water use and stream size (see odfstr24.htm)

11 = small, fish bearing

14 = small, not verified

21 = medium, fish bearing

24 = medium, not verified

31 = Large, fish bearing

quadname 7.5 minute quad name that the reach falls in src_agen

Source of the reach

ODF = Oregon Dept. of Forestry

USGS = USGS DLG files

Metro = Metro streams layer

IP = Digitized wide stream centerlines or gaps filled in from DRG's wat_type

Water type (incomplete)

1 = Streams

2 = Lakes

3 = Widestream centerlines

4 = Widestream connectors mincode

DLG codes

200 = Shoreline

201 = Manmade shoreline

202 = Closure line

203 = Indefinite shoreline

204 = Apparent limit

406 = Dam or weir

412 = Stream

414 = Ditch or canal

415 = Aqueduct