Trinity River Watershed Document Links

This list is not designed to include all of the data that resides on the Trinity River Restoration Program’s Document and Data Library, http://www.trrp.net/library/, which is extensive. Rather, it is designed to provide a quick reference guide for those researching the big picture of the Trinity River Watershed and specific information regarding the Trinity River subwatersheds. Most information relating to the mainstem Trinity River is intentionally excluded. The TRRP library is an excellent place to look if you don’t find what you are looking for here. Categories are listed alphabetically:

 

Agencies, Organizations and Tribes


 

Bureau of Land Management, Redding Field Office

https://www.blm.gov/tag/redding-field-office

California Department of Fish and Wildlife

https://www.wildlife.ca.gov/Regions/1

California Watershed Network

This nonprofit organization was formed in 2000 to help protect and restore watersheds in California through community-based networks. The website contains some information on watershed events and older information on watersheds of interest, but most of it has not been updated since 2011.

http://www.watershednetwork.org/

Five Counties Salmonid Conservation Program

The goal of the Five Counties Salmonid Conservation Program (5C) is to seek opportunities to contribute to the long-term recovery of salmon and steelhead in Northern California. A 501 (c) 3 non-profit.

http://www.5counties.org

Hoopa Valley Tribe

The Hoopa Valley Indian Reservation is the largest California reservation and occupies some 144 square miles in the lower watershed.

https://www.hoopa-nsn.gov/

Natural Resources Conservation Service – California

https://www.nrcs.usda.gov/wps/portal/nrcs/site/ca/home/

North Coast Regional Water Quality Control Board- Trinity River Watershed Information

https://www.waterboards.ca.gov/northcoast/water_issues/programs/watershed_info/trinity_river/

Salmonid Restoration Federation

This nonprofit group was formed in 1986 to assist salmonid restoration efforts in California. Their web site contains a wealth of information on salmonids and habitat and stream restoration in California.

http://www.calsalmon.org/

Trinity County

http://trinitycounty.org/

Trinity River Restoration Program

This is a multi-agency program dedicated to the restoration of the river system and its wildlife and fisheries. Their website contains a wealth of information.

http://www.trrp.net/

US Forest Service, Shasta-Trinity National Forest

Much of the Trinity River Watershed is within Shasta-Trinity National Forest jurisdiction. 

http://www.fs.usda.gov/land/stnf/landmanagement

US Forest Service, Six Rivers National Forest

A small portion of the Trinity River Watershed is within the Six Rivers National Forest jurisdiction.

https://www.fs.usda.gov/land/srnf/landmanagement

The Watershed Research and Training Center

Works locally, regionally, and nationally to develop innovative approaches to natural resource management, economic development and community resilience. A 501 (c) 3 non-profit.

https://thewatershedcenter.com/

The Yurok Tribe

While the tribal reservation is not in the Trinity River Watershed, the Yurok are invested in the watershed through the salmon runs, their culture and history, and participation in the Trinity River Restoration Program.

http://www.yuroktribe.org/#.htm

Climate Change


 

Assessment of Watershed Vulnerability to Climate Change in the Shasta-Trinity National Forest

April 2012; Prepared by: Christine Mai, Forest Hydrologist; and Fred Levitan, Steve Bachman, and William Brock.

http://tcrcd.net/pdf/tr_wshed_docs/2012_ST_Watershed_Vulnerability.pdf

Forest and Water Climate Adaptation: A Plan for Trinity County, CA.

Medley-Daniel, M. & Thaler, T., Griffith, G., Crossett, T., (Eds). 2011. Model Forest Policy Program in association with The Watershed Research and Training Center and Cumberland River Compact. Sagle, ID.

http://tcrcd.net/pdf/tr_wshed_docs/Trinity-County_CA_Forest-and-Water_Climate_Adaptation_Plan_2011.pdf

Summary of current trends and probable future trends in climate and climate­ driven processes for the Shasta­-Trinity National Forest and surrounding lands

USDA Forest Service, Pacific Southwest Region, Jan 2011.

https://www.fs.usda.gov/Internet/FSE_DOCUMENTS/stelprdb5352020.pdf

 

Monitoring Data, Plans and Reports


 

2019 Trinity River Tributaries Gap and Trend Analysis

2019 Landscape Level Restoration Gap and Trend Analysis for the Tributaries of the Trinity River, California.

2019_Trinity_River_Tributaries_Gap_and_Trend_Analysis.pdf

GIS Analysis of the Tributaries of the Trinity River, California.

http://tcrcd.maps.arcgis.com/apps/View/index.html?appid=7a40b6a3f84949938bdf2f544d0f99c9

California Cooperative Anadromous Fish and Habitat Data Program (CalFish)

California Fish Passage Assessment Database Project (PAD).

http://www.calfish.org/tabid/83/Default.aspx

California Department of Fish and Wildlife Biogeographic Branch

The mission of CDFW's Biogeographic Data Branch is to collaborate with others to collect, manage, analyze, and distribute biogeographic data for effective conservation and management of California's natural resources.

https://www.wildlife.ca.gov/Explore/Organization/BDB

California Environmental Data Exchange Network (CEDEN)

Water quality and habitat data and information are contained at this site in a spreadsheet format. Pay careful attention to the instructions.

http://www.ceden.org/

CAL FIRE Fire and Resource Assessment Program

This site contains a wealth of information on the amount and extent of forest and rangelands along with analysis of conditions. Maps, projects, and assessments are available on the site, including GIS layers for timber harvesting, vegetation, and other resources.

http://frap.fire.ca.gov/

California Geographic Information Portal

This portal has a search engine for the portal itself and ArcGIS online. Information and GIS layers can be accessed for a variety of data, including hillshade, vegetation, rivers, contours, stream fish habitat by reach, stream inventory reports, and CalWater 2.2 maps.

http://portal.gis.ca.gov/geoportal/catalog/main/home.page

California Stream Conditions Index

http://www.mywaterquality.ca.gov/eco_health/streams/condition/bugs_bio.html

California Department of Water Resources Water Data Library

There are a few active monitoring stations in the watershed, but there is large amount of historical data, going back about 60 years, depending on the site.

http://wdl.water.ca.gov/waterdatalibrary/

California Water Boards Water Rights Database

Statements of water diversion and use, registrations, certificates and water rights permits are accessible on the eWRIMS, Electronic Water Rights Information Management System. This link includes a mapping application.

http://www.waterboards.ca.gov/waterrights/water_issues/programs/ewrims/

Hoopa Valley Outmigrant Monitoring Report 2015-2016

Abundance of Juvenile Salmonids in Tributaries on the Hoopa Valley Reservation, 2015-2016. Hoopa Valley Tribal Fisheries Department, December 31, 2016.

http://tcrcd.net/pdf/tr_wshed_docs/Hoopa_Valley_Outmigrant_Monitoring_Report_15-16.pdf

Klamath Basin Monitoring Program

A warehouse of monitoring information for the Trinity River Watershed resides on this website.

http://kbmp.net/maps-and-data 

KRIS (Trinity)

This system was originally developed as a data repository and analysis and management tool for the Klamath River Watershed. A host of information is available through this site, including maps, water quality data, fisheries data, photographs, and scientific references.

http://www.krisweb.com/krisklamathtrinity/krisdb/html/krisweb/index.htm

Land and Resource Management Plan Monitoring and Evaluation Report Fiscal Years 2009 & 2010

Oct. 2012, USFS, Shasta-Trinity National Forest.

https://www.fs.usda.gov/Internet/FSE_DOCUMENTS/stelprdb5398580.pdf

Long Term Trend Monitoring Program For The South Fork Trinity River Watershed

US Forest Service, Six Rivers National Forest. Dresser, A., C. Cook and M. Smith. March, 2001.

http://www.krisweb.com/biblio/trinity_usdafs_dresser_2001_sftltmp.pdf

Motorized Travel Management Final Environmental Impact Statement

February 2010, US Forest Service.

https://www.fs.usda.gov/nfs/11558/www/nepa/46912_FSPLT1_026052.pdf

National Gap Analysis Project (GAP) | Protected Areas Data Portal

https://gapanalysis.usgs.gov/padus/

NorWeST Stream Temp - Regional Database

Updated in April 2017 to incorporate all the South Fork Trinity data that Riverbend Sciences compiled for WRTC in 2015/2016. The updated USFS Rocky Mountain Research Station NorWeST compiled database of observed data is available online at:
https://www.fs.fed.us/rm/boise/AWAE/projects/NorWeST/StreamTemperatureDataSummaries.shtml#NorthernCA_CoastalKlamath

Updated USFS RMRS NorWeST model predictions for mean August stream temperature data are available online at:

https://www.fs.fed.us/rm/boise/AWAE/projects/NorWeST/ModeledStreamTemperatureScenarioMaps.shtml

Recovery Outline for the Distinct Population Segment of Northern California Steelhead

National Marine Fisheries Service, Southwest Regional Office, May 2007

http://www.westcoast.fisheries.noaa.gov/publications/recovery_planning/salmon_steelhead/domains/southern_oregon_northern_california/nc_steelhead_recovery_outline_final_may_2007.pdf

Roadless Area Conservation Website, USFS

https://www.fs.usda.gov/roadmain/roadless/home

South Fork Trinity River Water Quality Monitoring Project, Draft Final Report

TCRCD, Aug. 2003

http://www.tcrcd.net/pdf/SFTR_SWRCBReport.pdf

Southern Oregon Northern CA Coho Recovery Plan (SONCC)

Recovery Strategy for California Coho Salmon Progress Report. 2004-2012, CDFW, 2015.

http://www.fgc.ca.gov/public/reports/FGC_Coho_Report_2015.pdf

Final SONCC Coho Recovery Plan, Upper Trinity River Population

CDFW, 2014   (Trinity Dam to Helena).

http://www.westcoast.fisheries.noaa.gov/publications/recovery_planning/salmon_steelhead/domains/southern_oregon_northern_california/SONCC%20Final%20Sept%202014/sonccfinal_ch39_uppertrinityriver.pdf

UC Davis Information Center for the Environment, Natural Resource Projects Inventory

This database provides information on natural resource projects in California, including links to data and information collected by the projects.

http://www.ice.ucdavis.edu/nrpi/Home.aspx

U.S. Natural Resources Conservation Service Geospatial Data Gateway

Environmental and natural resources GIS files are available at this site, along with an interactive national map viewer.

https://gdg.sc.egov.usda.gov/

Other


 

California Integrated Water Quality System - Facilities Regulated by the State and Regional Water Boards

CIWQS Regulated Facilities interactive map of permitted facilities in California. You can zoom in to the watershed of your choice and click on a facility to obtain information.

https://ciwqs.waterboards.ca.gov/ciwqs/readOnly/CiwqsMapServlet?mapName=regulatedFacilityMap

Deer Conservation and Management Plan, Public Review Draft

California Department of Fish and Wildlife, Mar. 2015.

https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=95105

Elk Conservation and Management Plan (Draft)

California Department of Fish and Wildlife, Nov. 2017.

https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=151283

Fish Consumption Advisories by Office of Environmental Health and Hazard Assessment

Trinity Lake and East Fork Trinity River.

http://www.oehha.ca.gov/fish/so_cal/TrinRiverF2.html

Lewiston Lake, Carrville Pond, and the Trinity River Upstream from Trinity Lake

http://www.oehha.ca.gov/fish/so_cal/Lewiston.html

Health Advisory: Fish Consumption Guidelines for Trinity Lake and Selected Water Bodies in the Trinity River Watershed (Draft)

Lloyd, A., Denton, J. California Environmental Protection Agency, Apr. 2005.

https://oehha.ca.gov/media/downloads/fish/document/trinitylakedraftadvisory.pdf

Record of Decision: Trinity River Mainstem Fishery Restoration Final Environmental Impact Statement/Environmental Impact Report

US Dept. of Interior, Dec. 2000.

http://www.krisweb.com/biblio/trinity_usdoi_xxxx_2000_rod.pdf

Water Quality Management for Forest System Lands In California; Best Management Practices

USDA Forest Service, Pacific Southwest Region, Sept. 2000.

https://www.fs.usda.gov/Internet/FSE_DOCUMENTS/stelprdb5362512.pdf

Trinity County Community Wildfire Protection Plan Update 2015

http://www.tcrcd.net/fsc/pdf/CWPP_2015_Update_Final.pdf

Road Related Documents


 

Shasta-Trinity National Forest, Forest Roads Analysis Priority Recommendations West Side Map

June 2002

https://www.fs.usda.gov/Internet/FSE_DOCUMENTS/fsm9_007959.pdf

Shasta-Trinity National Forest Roads Analysis Report

April 2003.

https://www.fs.usda.gov/Internet/FSE_DOCUMENTS/fsm9_007960.pdf

Shasta-Trinity National Forest Sediment Source Inventory and Aquatic and Riparian Resources Road Analysis Process Report

North State Resources, Inc., 2012.

http://tcrcd.net/pdf/tr_wshed_docs/Shasta_Trinity_Sediment_Source_Inventory_2012_nsr.pdf

Trinity County Culvert Inventory and Fish Passage Evaluation Final Report

Ross Taylor and Associates for Trinity County Planning Dept., Aug. 2002.

https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=23679

Trinity River Watershed Five Counties Road Erosion Inventory Final Report

Trinity County Planning Department - Natural Resources Division, 2005.

http://www.5counties.org/docs/dirt_final_trinity.pdf

Upper Trinity River Road Inventory

TCRCD, Aug. 2005

http://www.tcrcd.net/pdf/UT_AssessmentReport.pdf

 

TMDL Documents


 

North Coast Regional Water Quality Control Board TMDL Project Links:

http://www.waterboards.ca.gov/northcoast/water_issues/programs/tmdls/303d/

North Coast Regional Water Quality Control Board Implementation Policy:

The Regional Water Board adopted a TMDL implementation policy statement in 2004 and a subsequent work plan in 2008 that details efforts to address sediment impaired water bodies in the region. The section starting on page 215 is specific to the Trinity River watershed.

http://www.waterboards.ca.gov/northcoast/water_issues/programs/tmdls/sediment_tmdl_implementation/

The US Environmental Protection Agency established two technical Total Maximum Daily Loads for sediment in the Trinity River watershed: 

the South Fork in 1998, followed by the Trinity River watershed in 2001.

South Fork Trinity River and Hayfork Creek Total Maximum Daily Loads for Sediment, US EPA, Dec. 1998.

https://www.waterboards.ca.gov/northcoast/water_issues/programs/tmdls/trinity_river_south_fork/pdf/fsftmdl.pdf

Trinity River Total Maximum Daily Load for Sediment

US EPA, Dec. 2001.

https://www.waterboards.ca.gov/northcoast/water_issues/programs/tmdls/trinity_river/pdf/finaltrinitytmdl.pdf

Water Temperatures in the South Fork Trinity River

Prepared for EPA and the North Coast Regional Water Quality Control Board for their consideration during the development of the South Fork Trinity River TMDL. Prepared by Stuart Farber, Timber Products Company, Darrel Rankin, USFS - Shasta Trinity National Forest and Tim Viel, Natural Resources Conservation Service, Oct. 1998.

http://www.krisweb.com/biblio/trinity_usepa_farberetal_1998_sftrinitywatertemps.pdf

 

USFS Burn Area Emergency Response (BAER) Reports - 2015


 

Shasta Trinity National Forest USFS Burn Area Emergency Response Reports 1999-2015

https://www.fs.usda.gov/detailfull/stnf/landmanagement/?cid=stelprdb5150043&width=full

 

Watershed Analyses/Assessments within the Trinity River Watershed


 

Big Creek Watershed Assessment Report

Watershed Research and Training Center, July 2008

https://www.fs.usda.gov/Internet/FSE_DOCUMENTS/stelprdb5381812.pdf

Burnt Ranch and Soldier Creek Watershed Analysis

Shasta-Trinity National Forest, Apr. 2009.

https://www.fs.usda.gov/Internet/FSE_DOCUMENTS/stelprdb5331709.pdf

Eltapom Creek & Corral Creek Planning Watersheds Analysis

Shasta-Trinity National Forest, Apr. 2017.

https://www.fs.usda.gov/Internet/FSE_DOCUMENTS/fseprd539053.pdf

French Creek Watershed Analysis

Shasta-Trinity National Forest, Feb. 2010.

https://www.fs.usda.gov/Internet/FSE_DOCUMENTS/stelprdb5136903.pdf

Hidden Valley, Plummer Creek, & Rattlesnake Creek Watershed Analysis

Foster Wheeler Environmental Corp for Shasta-Trinity National Forest, Sept. 2001.

https://www.fs.usda.gov/Internet/FSE_DOCUMENTS/stelprdb5108673.pdf

Horse Linto, Mill and Tish Tang Creek Watershed Analysis

Six Rivers National Forest, Mar. 2000

https://www.fs.usda.gov/Internet/FSE_DOCUMENTS/stelprdb5381820.pdf

Hyampom Watershed Analysis

Shasta-Trinity National Forest, April, 2011

https://www.fs.usda.gov/Internet/FSE_DOCUMENTS/stelprd3808398.pdf

Mainstem Trinity River Watershed Analysis

BLM, 1995

http://www.krisweb.com/biblio/trinity_blm_xxxx_1995_wa/volume1/wa.htm

Mainstem Trinity Watershed Analysis

Prepared for U.S. Department of Agriculture Forest Service Pacific Southwest Region, Six Rivers National Forest. Natural Resources Management Corporation, May 2003.

http://www.krisweb.com/biblio/trinity_usdafs_nrm_2003_mainstemwa.pdf

Middle Hayfork-Salt Creek Watershed Analysis

URS Greiner Woodward Clyde Group, Apr. 2000.

https://www.fs.usda.gov/Internet/FSE_DOCUMENTS/stelprdb5108729.pdf

New River Watershed Analysis

USFS, Apr. 2000.

https://www.fs.usda.gov/Internet/FSE_DOCUMENTS/stelprdb5108731.pdf

North Fork Trinity River, East Fork North Fork Trinity River and Canyon Creek Watershed Analysis

Shasta-Trinity National Forest, Mar. 2003.

https://www.fs.usda.gov/Internet/FSE_DOCUMENTS/fsm9_008146.pdf

South Fork Trinity River Supplementary Watershed Assessment 2014-2016

Prepared by The Watershed Research and Training Center, Hayfork, CA for the California Department of Fish and Wildlife Fisheries Restoration Grant Program. 58p. + appendices.

http://tcrcd.net/pdf/tr_wshed_docs/FRGP_SFTR_0_Main_Watershed_Assessment.pdf

Appendices: Water Conservation Measures; Stream Temperature Analysis; Riparian Assessment; Fish Passage and Water Diversion Assessment; and Stream Mouth Assessments

http://tcrcd.net/pdf/tr_wshed_docs/FRGP_SFTR_1_Water_Conservation_Measures.pdf

http://tcrcd.net/pdf/tr_wshed_docs/FRGP_SFTR_2_Stream_Temp_Analysis.pdf

http://tcrcd.net/pdf/tr_wshed_docs/FRGP_SFTR_3_Riparian_Assessment.pdf

http://tcrcd.net/pdf/tr_wshed_docs/FRGP_SFTR_4_FIsh_Passage_Water_Diversion_Assessment.pdf

http://tcrcd.net/pdf/tr_wshed_docs/FRGP_SFTR_5_Stream_Mouth_Assessment_2016.pdf

Draft 2024 Upper Trinity Watershed Restoration Assessment and Management Plan

The Watershed Research and Training Center & Trinity County Resource Conservation District, April 2024

http://tcrcd.net/pdf/tr_wshed_docs/USBR_Upper_Trinity_Watershed_Restoration_Assessment-Management_Plan_2024-Draft.pdf

Upper Trinity River Watershed Analysis, Including Analysis for: Main Trinity River, Coffee Creek, E. Fork Trinity River, Stuart Fork, and Trinity Reservoir Watersheds

Shasta-Trinity National Forest, Mar 2005

http://tcrcd.net/pdf/tr_wshed_docs/UTR_Watershed_Analysis_USFS-2005.pdf

Upper Trinity River Watershed Assessment Report & Management and Action Plan

TCRCD, Mar. 2006

http://www.tcrcd.net/pdf/UT_AssessmentReport.pdf

Appendix A to above document: Upper Trinity River Sediment Source Analysis, Jim Fitzgerald and GMA, Feb. 2006.

http://www.tcrcd.net/pdf/UT_SedimentSourceAnalysis.pdf

Weaverville Watershed Analysis

Shasta-Trinity National Forest, Mar 2004

https://www.fs.usda.gov/Internet/FSE_DOCUMENTS/fsm9_008628.pdf

 

Watershed Guides and Plans


 

Action Plan for Restoration of the South Fork Trinity River Watershed and Its Fisheries

Prepared for U.S. Bureau of Reclamation and The Trinity River Task Force by Pacific Watershed Associates, Jan. 1994.

http://www.krisweb.com/biblio/sft_usbor_pwa_1994_sftplan/pwa1.htm

Hayfork Adaptive Management Area Guide, Shasta-Trinity and Six Rivers National Forests

Bureau of Land Management and Pacific Southwest Forest Research Station, Oct. 2004.

https://www.fs.usda.gov/Internet/FSE_DOCUMENTS/stelprdb5405614.pdf

North Coast Regional Water Quality Board Watershed Initiative Chapter, Trinity River Watershed Management Area

Provides an overview of the watershed, a description of its water quality concerns and issues, past significant Regional Board activities in the watershed, activities as of 2005, near-term activities that would benefit the watershed, and activities which may happen on a longer time-scale.

http://www.waterboards.ca.gov/northcoast/water_issues/programs/wpc/20trinitysec2.pdf

Trinity County General Plan

(consists of 5 Elements and 5 Community Plans)

http://docs.trinitycounty.org/Departments/Planning/General_Plan%5CTrinityGenPlan.html

Water Quality Control Plan for the North Coast Region

North Coast Regional Water Quality Control Board, May 2011.

https://www.waterboards.ca.gov/northcoast/water_issues/programs/basin_plan/083105-bp/basin_plan.pdf

West Weaver Creek Assessment and Action Planning

Prepared for TCRCD by ESA PWA, Aug. 2012.

https://www.fs.usda.gov/nfs/11558/www/nepa/105868_FSPLT3_3954333.pdf