Document Library

A basin-scale synthesis evaluates coho habitat conditions, restoration investments, fish passage priorities, and limiting factors across the Tillamook Population Unit, summarizing restoration outcomes and biological indicators reported through 2003.

An integrated watershed assessment examines relationships between land use and water quality in Tillamook Bay tributaries, summarizing long-term monitoring of fecal coliform bacteria, suspended sediments, nutrients, discharge, and storm-driven variability to support management and restoration decisions.

Assesses diked estuarine wetlands for dike breach and tidal restoration in Tillamook Bay, ranking sites by restoration potential and feasibility, and summarizing methods and constraints for planning future restoration actions.

A comparative bathymetric analysis evaluates changes in Tillamook Bay depth and bottom morphology using historical survey data from 1867, 1957, and 1995, applying GIS and geostatistical methods to assess sedimentation patterns and uncertainty.

A comprehensive stormwater master plan evaluates drainage systems, runoff patterns, erosion, sedimentation, flooding risk, and water quality in Bay City, providing hydrologic modeling, infrastructure assessments, and recommended improvements to support long-term watershed management.

Final report documenting remediation actions and monitoring results to reduce agricultural contributions of bacteria, sediment, and heat in the Beaver Creek subbasin.

Evaluation of conservation efforts and policy implementation affecting Oregon coastal coho salmon, focusing on watershed restoration and regulatory effectiveness.

Describes identification, life history, spread pathways, and ecological and economic impacts of Chinese mitten crab in estuarine and freshwater systems.

This report provides a comprehensive assessment of climate change impacts on the Tillamook Bay Watershed, analyzing trends in temperature, precipitation, sea level, and ocean acidification. It includes projections for the next century under different greenhouse gas emission scenarios and outlines potential risks for ecosystems, water quality, and infrastructure.

An assessment of historical climate trends and projected future changes in the Tillamook Bay Watershed, focusing on temperature, precipitation, sea level, extreme events, snow, wave conditions, and ocean acidification to inform long-term planning and climate resilience.

Compares Tillamook Bay fecal coliform bacteria concentrations among prohibited, restricted, and conditional shellfish areas using DEQ STORET data, and evaluates changes across multiple time periods from 1979 to 1993.

Describes identification, ecological impacts, and effective control techniques for English ivy infestations threatening forested habitats in the Pacific Northwest.

Provides guidance on identification, ecology, and long term control strategies for Japanese, giant, and Himalayan knotweed in riparian and disturbed environments.

Rapid bio assessment of 26.6 miles of the East Fork Nehalem and tributaries documenting juvenile salmonid distribution abundance and habitat conditions using snorkel survey methods.

Reports Year 2 findings on interactions among eelgrass oysters and burrowing shrimp including patch edge studies manipulative experiments and monitoring recommendations for Tillamook Bay.

Literature review synthesizing research on eelgrass ecology and interactions with commercial oyster cultivation in Tillamook Bay.

Defines goals study designs and monitoring protocols for evaluating the effectiveness of restoration projects implemented by Tillamook Estuaries Partnership.

Evaluates effectiveness of large wood restoration projects on juvenile coho overwinter survival using paired summer and winter snorkel surveys from 2006 to 2010.

Companion volume containing historical maps figures and graphics illustrating landscape change forest conditions flood history and estuary morphology in the Tillamook Bay watershed.

Provides a comprehensive historical analysis of environmental change in the Tillamook Bay estuary and watershed, examining land use, sedimentation, water quality, habitat alteration, and management implications from pre settlement through the twentieth century.

This report evaluates key environmental indicators to assess progress on goals from the Comprehensive Conservation and Management Plan (CCMP) for the Tillamook Bay National Estuary Project. It includes data on habitat, water quality, land use, shellfish safety, and stream health, and serves as a baseline for long-term environmental monitoring and decision-making in Tillamook County.

Uses program data from eradication attempts on multiple exotic weed species to show eradication is most feasible for small infestations and that costs increase sharply with infestation size, supporting early detection and rapid response.

An analysis estimates historic and current losses of salt marsh and freshwater wetlands across Oregon coastal coho population units, comparing mid-1800s conditions to recent land cover using GIS, historic survey records, soils data, and aerial imagery.

Estimates historical salmon run sizes for Oregon coastal rivers using aboriginal harvest data and cannery records and compares historical abundance to late twentieth century population levels.

Evaluates persistence, recruitment, and population dynamics of European green crab in Pacific Northwest estuaries following initial colonization, with links to ocean conditions and winter temperatures.

Outlines a program framework for early detection of exotic species in Tillamook Bay including baseline inventories monitoring strategies taxonomic support and management applications.

Basin wide analysis of fecal contamination sources using genetic markers to identify human and animal contributions in Tillamook Bay.

Presents results from a multi year research study conducted between 1999 and 2001 examining spatial and seasonal patterns of fish species use in Tillamook Bay to support estuary habitat management and restoration planning.

Analyzes geomorphic processes, sediment transport, and channel change across major rivers in the Tillamook Bay Basin to inform flood management and restoration planning.

Assesses forest road conditions and their contribution to sediment delivery in the Kilchis River watershed, with analysis of drainage, erosion sources, and management recommendations.

Independent auditor report and compliance review of federal awards and financial controls for Tillamook Estuaries Partnership for the fiscal year ending September 30 2023.

Provides identification characteristics, biological traits, distribution, impacts, and recommended control methods for giant hogweed, a Class A noxious weed and public health hazard.

Examines physical and ecological effects of removing gravel and sediment from active stream channels, with emphasis on channel stability, sediment transport, and aquatic habitat impacts.

This report presents the assessment and prioritization of road-stream crossings (culverts) within the Kilchis River sub-basin of the Tillamook Bay Watershed. It identifies barriers to fish passage, evaluates culvert conditions, and prioritizes replacement or repair based on habitat benefit, cost, and feasibility. The assessment supports long-term watershed restoration planning under the Tillamook Bay National Estuary Project.

A comprehensive culvert inventory and prioritization documents fish passage barriers across the Miami River Basin, evaluating culvert condition, barrier severity, and upstream habitat availability to guide replacement priorities and watershed restoration planning.

A basin-wide inventory evaluates culverts across Tillamook Bay tributaries, documenting fish passage barriers, structural condition, upstream habitat access, and prioritization scores to support replacement planning and watershed-scale restoration efforts

A detailed culvert inventory and prioritization documents fish passage barriers throughout the Tillamook River Basin, combining field assessments, habitat measurements, and GIS mapping to identify replacement priorities and support watershed-scale restoration planning.

A basin-wide culvert inventory documents fish passage barriers throughout the Trask River Basin, evaluating culvert condition, barrier severity, and upstream habitat availability to prioritize replacement actions and support watershed-scale restoration planning

Expanded culvert assessments document additional fish passage barriers within the Trask River Basin, presenting site-specific condition data, habitat access metrics, and prioritization scores to support coordinated replacement planning and watershed restoration.

A comprehensive culvert inventory evaluates fish passage barriers throughout the Wilson River Basin, documenting culvert condition, barrier severity, upstream habitat access, and prioritization scores to support replacement planning and watershed-scale restoration.

Continued culvert assessments expand documentation of fish passage barriers in the Wilson River Basin, presenting additional site-specific condition data, habitat access metrics, and prioritization scores to support coordinated replacement and watershed restoration planning.

Reviews scientific evidence on how instream gravel and sand mining affects salmon habitat and stream processes, providing management recommendations to state agencies.

Summarizes methods, extent, and ecological effects of instream aggregate mining in Oregon streams, focusing on geomorphic change, sediment processes, and habitat impacts.

Provides practical guidance on mechanical, chemical, and integrated pest management strategies for controlling common invasive and nuisance weeds in the Pacific Northwest.

Reviews economic and ecological costs of invasive species in estuarine and coastal systems and examines how science and management can be integrated to improve prevention, eradication, and control efforts.

Comprehensive watershed analysis synthesizing hydrology, sediment, water quality, habitat conditions, and land use impacts to support restoration and management planning in the Kilchis watershed.

Summarizes identification characteristics, impacts, distribution, and recommended control practices for knotweed species expanding across Pacific Northwest landscapes.

A comprehensive management guide synthesizes research, field experience, and best practices for controlling invasive Himalayan blackberry, covering plant ecology, ecological impacts, and mechanical, chemical, grazing, and restoration-based control methods.

A citywide stormwater drainage master plan evaluates existing conveyance systems, runoff characteristics, water quality concerns, and regulatory requirements, presenting hydraulic modeling and prioritized infrastructure improvements to reduce flooding and improve water quality.

Experimental study examining mechanisms by which invasive Bohemian knotweed limits growth and survival of native plant species.

Comprehensive assessment of hydrology, water quality, sediment sources, habitat conditions, and land use impacts in the Miami River watershed to support restoration planning.

Documents pre construction physical and biological conditions at the Miami Wetlands project site to support evaluation of future restoration effectiveness.

Provides long term post restoration monitoring data and graphical summaries of water levels and temperatures at the Miami Wetlands project site.

Reports results of six years of post implementation monitoring documenting physical and biological responses to tidal wetland restoration at the Miami Wetlands project site.

Action plan identifying and prioritizing culvert barriers and outlining implementation strategies to improve fish passage across the Nestucca and Neskowin watersheds.

Identifies and prioritizes fish passage barriers and outlines implementation strategies for culvert replacement across the Nestucca and Neskowin watersheds.

Comprehensive assessment of physical, biological, and land use conditions in the Nestucca and Neskowin watersheds to support restoration and management planning.

Evaluates habitat conditions, fish use, and limiting factors in the Netarts Bay watershed and presents a restoration plan based on field surveys and modeling.

Annotated inventory of reports, studies, maps, and planning documents related to natural resources, land use, and research in the Netarts Bay watershed.

Watershed scale assessment describing hydrology, water quality, habitat conditions, and land use to identify protection and restoration priorities in the Netarts watershed.

Management plan developed under SB 1010 outlining measures to address agricultural nonpoint source pollution and protect water quality in north coast Oregon.

Guide outlining methods for identifying and prioritizing potential instream and riparian restoration sites across multiple north coast Oregon watersheds.

Regional assessment of nutria distribution, impacts, and management needs, including research findings and recommendations for coordinated control efforts.

A literature review synthesizes research on eelgrass distribution, ecology, and habitat value in Tillamook Bay, examining interactions with commercial oyster cultivation, burrowing shrimp, sediment dynamics, and management practices to inform estuary conservation and policy decisions.

Evaluates existing culverts on Patterson Creek and presents feasibility analysis and conceptual designs for improving fish passage while addressing flood risk and infrastructure constraints in Bay City.

Assesses existing in stream conditions and identifies potential enhancement actions within the Patterson Creek culvert replacement project area to improve habitat and stream function.

Experimental study evaluating how short term exposure to common pesticides affects olfactory function in juvenile coho salmon using electro olfactogram measurements.

Provides guidance for researchers and field crews on cleaning and treating gear to prevent the spread of New Zealand mudsnails between aquatic and riparian sites.

This study identifies and prioritizes current and historic tidal wetlands in the Tillamook Bay estuary using GIS, LiDAR, and ecological criteria to guide conservation and restoration actions, including planning for sea level rise and long-term estuary resilience.

An estuary-wide assessment identifies and ranks historic and existing tidal wetlands in the Nehalem River estuary using GIS analysis, aerial imagery, and ecological criteria to guide strategic conservation and restoration planning with willing landowners.

Describes the framework objectives and methods used by TEP to evaluate whether restoration and enhancement projects achieve intended physical and biological outcomes.

Provides identification information ecological impacts and recommended management approaches for controlling purple loosestrife infestations in wetland environments.

Reconnaissance level survey documenting the location, condition, and fish passage implications of tidegates within the Tillamook Bay watershed.

Synthesizes best available science on habitat conditions, land use impacts, and management actions affecting recovery of wild salmonids in western Oregon lowlands, with recommendations to state agencies.

Provides identification information, ecological impacts, and management approaches for controlling reed canarygrass in wetland and riparian environments.

This study analyzes habitat conditions and limiting factors affecting salmonid production in the Tillamook River watershed, using field surveys, modeling, and GIS analysis to identify restoration actions that improve spawning, rearing, and overall watershed function.

Results from storm-based water quality monitoring summarize fecal coliform bacteria, total suspended solids, nutrients, discharge, and precipitation data collected from the Tillamook, Kilchis, Trask, and Wilson Rivers to support long-term watershed management and restoration evaluation.

Corps of Engineers review report dated April 16, 1953 and revised December 18, 1953, evaluating modifications to the Tillamook Bay project and the effects of closing the Bayocean Peninsula breach on navigation and adjacent lands.

Uses spatial analysis and ecological criteria to prioritize riparian habitat restoration opportunities across the Tillamook Bay lowlands.

Describes the composition and distribution of benthic invertebrate communities associated with rock and soft bottom habitats in Tillamook Bay.

Watershed analysis evaluating salmon habitat conditions, land use influences, and limiting factors within the Neskowin River watershed.

Project report describing riparian habitat protection, invasive species control, monitoring, and outreach activities conducted along the Sandy River corridor.

Management guide describing identification, ecology, impacts, and control methods for scotch broom in the Pacific Northwest.

Assessment of sediment conditions and physical habitat characteristics to support watershed and habitat management decisions.

Guidance document for planning, permitting, and implementing small dam removal projects in Oregon.

Evaluates economic and social benefits associated with the Southern Flow Corridor tidal wetland restoration project in Tillamook Bay.

Reports results of pre and post restoration monitoring at the Southern Flow Corridor project, documenting changes in hydrology, soils, vegetation, fish use, and ecosystem function following tidal reconnection.

Comprehensive assessment of ecological conditions, trends, and priority issues across Tillamook County estuaries and watersheds.

Presents a comprehensive assessment of water quality, habitat condition, and ecological trends across Tillamook County estuaries, summarizing monitoring results and restoration progress.

Technical analysis examining sediment transport and deposition processes within a coastal watershed to support management and restoration planning.

Summarizes condition, trends, and indicators of estuarine ecosystem health across Oregons coast, highlighting key stressors, restoration progress, and monitoring gaps.

Best management practices describing identification, impacts, and integrated control methods for tansy ragwort.

Annual report summarizing program accomplishments, partnerships, and financial highlights for Tillamook Estuaries Partnership.

Annual report summarizing restoration, monitoring, education, and partnership activities conducted by Tillamook Estuaries Partnership during the reporting year.

Annual report summarizing restoration, monitoring, education, and partnership activities conducted by Tillamook Estuaries Partnership during the reporting year.

Strategy document outlining climate change risks, vulnerabilities, and adaptation actions to improve resilience of Tillamook Bay estuaries and watershed resources.

Audited financial statements presenting the financial position, activities, cash flows, and notes for Tillamook Estuaries Partnership for the fiscal year ending September 30 2024.

Official IRS determination letter confirming Tillamook Estuaries Partnership tax exempt status under Section 501c3 of the Internal Revenue Code.

Annual summary highlighting restoration, monitoring, education, and community engagement activities conducted by TEP.

Examines physical chemical and biological effects of tide gates on estuarine habitats and migratory fish with emphasis on fish passage and habitat alteration.

Uses ecological criteria and GIS analysis to prioritize tidal wetland sites for restoration and conservation actions in the Nehalem River estuary.

Uses spatial analysis and ecological criteria to prioritize tidal wetland restoration opportunities across the Tillamook Bay estuary.

Evaluates tide gate modification approaches to improve fish passage and water quality while maintaining flood protection in estuarine systems.

Overview of tide gate types, functions, and ecological impacts in Pacific Northwest estuaries, with discussion of management and retrofit considerations.

Comprehensive feasibility study evaluating flood damage reduction and ecosystem restoration alternatives for the Tillamook Bay and estuary watershed.

Evaluates the status and effectiveness of existing regulatory and management programs addressing water quality and habitat protection in the Tillamook Bay watershed.

Bathymetric map depicting depth contours and estuarine morphology of Tillamook Bay based on compiled survey data.

Scientific and technical synthesis describing physical, chemical, biological, and human-use conditions of the Tillamook Bay watershed to support management planning.

Planning-level strategy outlining integrated flood risk reduction and salmon habitat restoration actions for the Tillamook Bay river system based on watershed scale principles.

Mapped dataset showing oyster plat lease boundaries and lease holders in Tillamook Bay based on 1996 shellfish lease records.

Field-based rapid bio-assessment documenting juvenile salmonid distribution and summer rearing densities across Tillamook Bay tributaries using standardized snorkel survey methods.

Second year of a multi-year rapid bio-assessment evaluating juvenile salmonid distribution, abundance, and habitat use across all major Tillamook Bay watersheds.

Final year of a three-year rapid bio-assessment program assessing juvenile salmonid abundance, distribution, and interannual trends across Tillamook Bay tributaries.

Comprehensive investigation of sediment sources, transport pathways, and historical accumulation in Tillamook Bay using surface sediments, core samples, and geochemical analyses.

Comprehensive assessment of watershed health indicators including water quality, habitat condition, and biological resources in the Tillamook Bay watershed.

Regulatory plan establishing temperature and bacteria total maximum daily loads for rivers and estuarine waters of the Tillamook Bay watershed.

Management plan for acquisition, restoration, and long term stewardship of the Wilson, Fuhrman, and Farris wetland properties to support habitat enhancement, flood mitigation, and public access objectives in Tillamook Bay.

Management plan outlining goals, restoration actions, monitoring, and long term stewardship for acquired tidal wetland properties in the Tillamook Bay estuary.

Presents results from Phase II field experiments evaluating the effectiveness of grass and shrub filter strips in reducing fecal coliform transport from agricultural runoff.

Countywide status report summarizing watershed conditions, restoration actions, monitoring results, and community engagement activities across Tillamook County estuaries and watersheds for recent program years

Basin scale habitat assessment and limiting factors analysis supporting coho salmon restoration planning in the Tillamook River watershed.

A comprehensive climate change vulnerability assessment examines risks to water quality, key habitats, fisheries, forests, and wildlife across Tillamook County, using the EPA Climate Ready Estuaries framework to support long-term planning and resilience.

This report documents the assessment and prioritization of culverts within the Tillamook Bay Watershed to improve fish passage and watershed connectivity. It includes GIS-based analysis, field data collection, prioritization models, and recommendations for restoration actions to enhance habitat access for native fish species.

This assessment evaluates sediment dynamics and physical habitat conditions across the Tillamook Bay Watershed using EPA EMAP protocols to establish baseline conditions, identify impairment risks, and support long-term watershed monitoring and restoration planning.

This report presents the results of storm-based and bi-monthly monitoring of water quality in the Tillamook, Kilchis, Trask, and Wilson Rivers from 1996 to 2002. The study characterizes fecal coliform bacteria (FCB), total suspended solids (TSS), and nutrient concentrations to assess storm impacts on the Tillamook Bay watershed. Findings show consistently elevated FCB levels in the Tillamook River and higher TSS concentrations in the Trask and Wilson Rivers during high-flow events. The data serve as a baseline for evaluating long-term restoration outcomes and improving best management practices for watershed health.

This study evaluates habitat conditions, salmonid use, and limiting factors in the Netarts Bay Watershed to guide restoration planning, focusing on stream habitat quality, fish passage barriers, and actions to improve salmon habitat.

Watershed scale assessment evaluating channel habitat, fisheries, sediment, riparian condition, water quality, and hydrology in the Trask River basin.

Reviews available data to estimate the environmental damages and economic costs associated with alien invasive species in the United States across multiple sectors.

Assessment of bacteria monitoring data to evaluate water quality conditions and effectiveness of voluntary management actions within the Tillamook Bay watershed.

Quality assurance project plan defining sampling design, analytical methods, data management, and QA procedures for the volunteer water quality monitoring program.

Comprehensive watershed assessment evaluating physical, biological, and water quality conditions and limiting factors within the Wilson River basin.