Data Management Plan

Critical habitat includes the stream channels within the designated stream reaches, and includes a lateral extent as defined by the ordinary high-water line (33 CFR 319.11). In areas where ordinary high-water line has not been defined, the lateral extent is defined by the bankfull elevation. Bankfull elevation is the level at which water begins to leave the channel and move into the floodplain and is reached at a discharge which generally has a recurrence interval of 1 to 2 years on the annual flood series. Critical habitat in lake areas is defined by the perimeter of the water body as displayed on standard 1:24,000 scale topographic maps or the elevation of ordinary high water, whichever is greater.See the final rule (70 FR 52630) for descriptions of areas excluded from this critical habitat designation. Excluded Indian lands were not clipped out of the data.

Process Steps:

• Data creation process 2003 - 2004. stuwr_chf1.shp 1) Fish distribution data were obtained from ODFW. ODFW 2003a; ODFW 2003b 2) Initial preparation of the ODFW data involved digitizing the 24K fish distribution data and incorporation of the documented observation databases into the fish distribution databases. For more details on this process see the supporting documentation under the section on "Supplemental information". 3) The DPS data were intersected with the REO watersheds (HUC5s). The result was a network of fish distribution that could be grouped by HUC5s. REO 2002 4) The UWR steelhead fish distribution was segmented based on LLID and Fifth Field Watershed (HUC5) boundaries. Unique codes (see HUC5_LLID under attribute definitions) were assigned to each segment allowing for analysis of the data at the watershed scale. 5) The watershed data sets did not match up cleanly with the fish distribution data sets. There were numerous instances where the watershed did not cross the stream network at the correct location. These were often small segments that introduced unnecessary complexity to the data set. We searched for these segments and changed the corresponding HUC5 attribute to match the correct watershed. 6) Data were converted to arc coverage then projected, built and cleaned. 7) The attribute tables were built and attribute accuracy was verified. 2005 In the final stages of the rule making process for critical habitat, we received comments and new information about the distribution of the DPS. During the final review of public comments and new information we revised the distribution of the DPS and made changes to the areas that were excluded from critical habitat. For a more detailed review of the changes between the proposed and final rule please refer to the final determination for critical habitat, and supporting documents. *Note: FRN point lists were generated off the original coverages, not generated from the polylines in the shapefiles. Shapefiles were generated from coverages to post on website for sharing.
• 2019-07-17 00:00:00 - stuwr_chf1.shp (NAD_1927_Albers) geographic transformation, unprojected -> STUWR_ch.shp (GCS_North_American_1983 wkid 4269). Geometry was not edited, attributes were not edited, metadata was edited because it was blank (stored separately as html file "metadata_stuwr_chf1").
• 2021-04-26 00:00:00 - The 2019 version STUWR_ch.shp (GCS_North_American_1983 wkid 4269) was converted into the standardized feature class Steelhead_UpperWillametteRiverDPS_20050902 (GCS_WGS_84 wkid 4326) using the National Critical Habitat Geodatabase processing protocol. During standardization, geometry was not edited. Attributes were edited. Metadata was edited and populated using the final rule and the 2005 html file "metadata_stuwr_chf1" that was stored separately from the source data in stuwr_chf1.shp (NAD_1927_Albers). Migrated field: "STRM_NAME" into "UNIT" (edited "Albany - Santiam Canal" to "Lebanon Santiam Canal"; filled in words "Creek"" River" when abbreviated; deleted numbering scheme e.g. "#2"; "Lambert SL" to "Lambert Slough"; deleted numbered braids like "braid #3"; "Mule Tail Creel" to "Mule Tail Creek"; "Talbot SL" to "Talbot Slough" [unnamed in nhd]; corrected spelling error "Mollala River" to "Molalla River") Dropped fields: FID, FNODE_, TNODE_, LPOLY_, RPOLY_, LENGTH, STUWR_CHF1, STUWR_CH_1, HUC5_LLID, LLID, ESUCODE, REV_DATE, SUBBASIN, WATERSHED, HUC4, HUC5