Data Inventory

TRRP uses a large amount of data over a broad range of topics. In order to support Adaptive Management across our multi-agency program, and to help inform stakeholders and the public, TRRP has developed a Data Management And Utility Plan.

This plan establishes a two-part data and information repository.  The full repository is maintained at the Weaverville office, and practical-use data packages will additionally be posted to the Online Data Portal (ODP).  For example: the full set of raw aerial photography is stored only at the Weaverville office, while the final GIS-ready stitched orthophoto datasets are posted to the ODP.

This Data Inventory provides easy-access to major TRRP datasets.  Not all are yet posted to the ODP; and the ODP may include data not listed here.  The ODP home page provides powerful search capabilities.


  • List was updated April 19, 2013, but remains incomplete.
  • Some listings provide links to the data online.  Other data are available upon request to the TRRP Data Steward (unless otherwise noted).
  • Codes:
    • na = not available at present
    • GIS = Geospatial data
    • db = database
    • Static = a fixed dataset, not intended to be updated
    • Versioned = a dynamic dataset, intended to be updated at some interval
    • Preliminary = a dataset that has not been completely QC’ed and reviewed.
    • xml = a format used for metadata
    • jpg = a preview image

Biological (see also Fisheries)

Dataset Metadata Type Preview Status Date Size Note
Riparian Vegetation: na GIS
  Riparian Vegetation, 2003 and frequent updates na GIS Static 2003 + Links will be added as these are packaged for online access
  Riparian Vegetation (2008/09) na GIS Static 2009 8MB Mostly from ’08; some updated ’09.
Threatened and Endangered Species, Critical Habitat, USFWS na GIS Static 2006  External data
Weeds rpt, appdx GIS Static 2006
Mollusk Survey (2002) na Static 2002
Frog/Turtle surveys na various
Bird surveys na various

Cadastral (Boundaries)

Dataset Metadata Type Preview Status Date Size Note
Land Status na GIS na Snapshot na 1:100,000 scale, maintained by BLM
Approximate Parcel Boundaries na GIS na Snapshot 2008 Data are not available outside of TRRP’s Weaverville office.

Climate

Most data are not managed by TRRP.  Please visit CDWR’s CDEC website and the WeatherShare project website.

TRRP has collected barometric data for calibration of water level loggers, available upon request.

 

Cultural

Dataset Metadata Type Preview Status Date Size Note
GNIS Place Names na GIS/tabular na Snapshot 2009 TRRP captures updates as-needed

Fisheries

FWS conducts most TRRP fisheries work, so is best consulted directly about data.  More will appear here as the data are packaged into the TRRP Repository.

Dataset Metadata Type Preview Status Date Size Note
Redd Surveys na GIS (KML) na Preliminary

Geological

Dataset Metadata Type Preview Status Date Size Note
Historic Mining Activities xml GIS na Snapshot Historic location and extent (‘footprint’) of dredge and hydraulic gold mining.
Floodplain Geomorpholgy na GIS na Static
Geomorphic Substrates na GIS na Snapshot
Cross Sections na tabular db na Snapshot 2008 Update expected in 2011
Terrain Model 2004 na GIS na Static Blends 2004 bathymetric LiDAR with 2001 terrestrial photogrammetry
Terrain Model 2009
XYZ tables
Contour SHP files
ArcGIS Terrain
 

xml
CAD/GIS na Static very large Blends terrestrial LiDAR, bathymetric LiDAR, bathymetric sonar, and other data.
Terrain Model 2011/2012
5 ft DEM
Detrended DEM
ArcGIS Terrain
 
xml
xml
xml
CAD/GIS na Static very large Blends terrestrial LiDAR, bathymetric LiDAR, bathymetric sonar, and other data.
Terrain Model Updates 2013: LSF and UJC
XYZ tables
 
xml
CAD/GIS na Static very large Blends terrestrial LiDAR, bathymetric LiDAR, bathymetric sonar, and other data.
Bathymetry 2003 na GIS na Static Sonar data from upper reaches
Bathymetry following 2010 peak release xml CSV, GIS Static Sonar data from deeper portions, Lewiston to North Fork
Bathymetry following 2011 peak release xml CSV, GIS na Static Sonar data from deeper portions, Lewiston to North Fork
Bathymetry following 2012 peak release xml CSV, GIS na Static Sonar data from deeper portions, Lewiston to North Fork
National Elevation Dataset na GIS na Snapshot TRRP captures updates as-needed

Hydrological

Dataset Metadata Type Preview Status Date Size Note
Channels, Main and Side na GIS na Snapshot 2009 Updated opportunistically
River Mile (2006) na GIS na Static 2006
River Kilometer (2006) na GIS na Static 2006
Streamgage Data Package yes GIS, tabular na Versioned  WY2011  GIS gage locations with links to Flow Gage Measurements (below) plus repository of prior data tables
Flow Gage Measurements na tabular, in ODP na Online viewer of preliminary and approved data, updated daily from USGS NWIS db
Thalweg 2004 na GIS na Static 2004
National Hydrography Dataset na GIS na Versioned TRRP captures updates as-needed
Water Surface Elevations na tabular db na Versioned Updated yearly
Water Temperature na GIS na Static Update schedule TBD
Flow Line: Maximum Fishery Flow na GIS na Static 2004 modeled from 2004 terrain
Flow Line: 100 Year Floodplain na GIS na Static 1976 From 1976 FEMA study
Flow Line: 500 Year Floodplain na GIS na Static 1976 From 1976 FEMA study
Flow Line: Ordinary High Water Mark na GIS na Static 2004 modeled from 2004 terrain
Flow Line: April 2009 low flow na GIS na Static 2009
Flow Line: July 2007 low flow na GIS na Static 2007
Flow Line: Nov 2001 low flow na GIS na Static 2001

Imagery

Dataset Metadata Preview Mosaic Color Resolution Year Month Size Note
Aerial Photos xml jpg Yes BW 3 ft 1944 Aug 320 MB BW, 3ft, August, Trinity Center to North Fork
Aerial Photos  xml jpg Yes BW 1.5 ft 1960 Aug-Oct BW, 0.5m, Aug-Oct, Trinity Center to Poker Bar plus Junction City to North Fork
Aerial Photos jpg No BW 1 ft 1961 Jun BW, 1ft, June, Indian Creek Area
Aerial Photos  xml jpg Yes BW 2 ft 1965 Aug Lewiston to North Fork
Aerial Photos  xml jpg Yes BW 1 ft 1971 May-Jun Lewiston to North Fork
Aerial Photos  xml jpg Yes Color 1.5 ft 1975 May-Aug Lewiston area plus Douglas City to North Fork
Aerial Photos jpg Yes Color 2 ft 1980 May Lewiston to North Fork
Aerial Photos jpg Yes Color 1.5 ft 1990 Jul Lewiston to Bucktail, Douglas City, Steiner Flat to North Fork
Aerial Photos jpg Yes Color 0.5 ft 1997 Oct Lewiston to North Fork except Poker Bar
Aerial Photos jpg Yes BW 1 ft 1998 County-wide
Aerial Photos jpg +/- Color 0.72 ft 2000 Lewiston to North Fork; 5000 cfs dam release
Aerial Photos jpg Yes Color 0.5 ft 2001 Nov Lewiston to North Fork
NAIP Imagery jpg Yes Color 2 m 2004 County-wide
Aerial Photos  xml jpg Yes Color ca. 1 ft 2005 Sep Lewiston to North Fork
NAIP Imagery jpg Yes Color 1 m 2005 County-wide
Aerial Photos  xml jpg Yes Color ca. 0.5 ft 2006 Jul Lewiston to North Fork
Aerial Photos jpg Yes Color 0.5 ft 2007 Lewiston to North Fork
Aerial Photos No Color ca 0.5 ft 2008 AU bend (pre- high flow)
Aerial Photos  xml Yes Color ca 0.5 ft 2008 Aug Lewiston to North Fork
Aerial Photos  xml jpg Yes Color 0.5 ft 2009 Apr Lewiston to North Fork
NAIP Imagery jpg Yes Color 1 m 2009 County-wide
Aerial Photos Report Yes Color 0.5 ft 2010 Aug 929 MB Lewiston to North Fork
Aerial Photos xml Yes Color 0.5 ft 2011 April Lowden Ranch and Trinity House Gulch Rehabilitation Sites
Aerial Photos xml, Report Yes Color 0.5 ft 2011 Aug Lewiston to North Fork
Aerial Photos xml, Report Yes Color 0.5 ft 2012 Jul Lewiston to North Fork
Aerial Photos xml, Report Yes Color 0.5 ft 2013 Feb Lower Steiner Flat (constructed 2012)
Aerial Photos xml, Report Yes Color 0.5 ft 2013 Feb Upper Junction City (constructed 2012)
Aerial Thermal Imagery Yes 1-band 2 ft 2009 Jul Lewiston to North Fork
Photomonitoring Database Contact U.S. Fish and Wildlife Service, Arcata Field Office
General Photography Collection TRRP’s Weaverville office maintains a large photo collection in photo cataloging software

Infrastructure

Dataset Metadata Type Preview Status Date Size Note
Bridges
Buildings
Roads
Wells

Rehabilitation

Dataset Metadata Type Preview Status Date Size Note
Gravel Injection Sites Versioned Updated as needed
Environmental Site Limits  xml Versioned Updated as needed (frequent)
Rehab Site Designs Versioned Updated as needed (frequent)
Rehab Historic Activities Static an older DWR geospatial project; TRRP is developing plans to incorporate it into a future restoration projects database
Revegetation Site Desings Versioned Updated as needed

Survey Control

Dataset Metadata Type Preview Status Date Size Note
TRRP Survey Control Database xml GIS 2012 84 MB
NGS Control Points

Utility

Dataset Metadata Type Preview Status Date Size Note
GRTS Sampling Design