2010-006-00

Hump Fisher-Island Restoration

Abstract
Hump-Fisher Island is a 400 acre island located at approximately river mile 60 on the Washington side of the Columbia River owned by Washington State. The primary purpose of the proposed 536 Restoration Project is to create rearing habitat for all upstream ESU’s of juvenile anadromous salmonids in the mainstem Columbia River. This component of the Feasibility Study will be done by the Washington Department of Fish and Wildlife (WDFW) with the assistance of subcontractors. The WDFW component will be combined with the remainder of the Feasibility Study conducted by the Corps and its AE contractor.
Synopsis of the Statement of Work:
This document describes the roles and responsibilities that WDFW will perform in cooperation with the Portland District Army Corps of Engineers (Corps). Key tasks include:
• Characterize the existing habitat conditions and related ecosystem processes within the study area;
• Articulate the scope of work, associated tasks, level of effort, and schedule;
• Develop a conceptual restoration plan for the Hump Fisher Area – including identification of alternatives, 30% design, and an estimate of biological benefits on selected alternatives; and
• Frames the monitoring approach as instrument for future adaptive management measures.
Study Approach:
WDFW is the prime contractor to BPA to develop this half of the Feasibility Study – which will constitute the non-federal work-in-kind match. WDFW will develop a collaborative research agreement with contractors to facilitate development of all deliverables from an expert team. The Corps will develop a Task Order contract with an AE Firm to develop all aspects of the Feasibility study not covered in this WDFW Statement of Work.
This section describes the planning framework and work tasks necessary to complete the Feasibility Study:
Task 1. Define Strategic Planning Elements:
Project partners (WDFW, PC Trask-PWA) will establish a preliminary vision for the site that incorporates strategic planning in the form of broad goals and measurable objectives. A conceptual model and monitoring plan are an integral part of the restoration plan.
Task 2. Characterize historic conditions of Hump-Fisher Island:
develop a historical template for the creation and evolution of mainstem islands, using information from Trask (2009). WDFW, in cooperation with the Corps, will complete a short history of dredging relevant to Hump Island – to track site changes and determining the range of restoration opportunities.
Task 3. Assemble existing datasets and related research:
WDFW and PC Trask-PWA will collect and synthesize existing physical and biological data related to the project site and river reach. In conjunction with the Corps' AE contractor, WDFW will also assemble other types of available relevant data. Data compilation is critical for not only refining conceptual model but assessing data gaps.
Task 4. Develop the Hump-Fisher Conceptual Restoration Model:
WDFW will develop the conceptual model for the Hump-Fisher restoration project. A a data gap analysis will be conducted to facilitate the development of this conceptual model and guide subsequent data collection.
Task 5. Topographic Survey and Water Flux Analysis:
Project partners (WDFW, PC Trask-PWA) will develop a contour map of Hump and Fisher islands based on ground survey methods and a bathymetric map of the submerged areas. The team will also provide the following studies: (1) A tidal study, and (2) an analysis of seasonal variation in water surface elevation of the Columbia River at Hump-Fisher.
Task 7. Develop restoration alternative evaluation:
Data analyses and evaluations from tasks above will be synthesized into a comprehensive inventory of opportunities and constraints of potential combinations of habitat restoration actions on the islands. The deliverable for this task includes identification of alternatives, 5-10% design on selected alternatives, an estimate of biological benefits on selected alternatives, and the selection of the preferred habitat restoration alternative.
Task 8. Develop the restoration plan:
This task represents a synthesis for products developed in tasks (#1-7) as well as articulating the overall project approach. The primary outcome of this plan will be the alternatives analysis described in Task #7 (above).
Task 9. Monitoring and Evaluation Plan:
A study plan will be developed to provide further development of monitoring design methods and criteria to evaluate the development of intertidal habitat. Monitoring of a nearby functional wetland will be important to design parameters and alternatives development for the project. Specific parameters may include: sediment accretion patterns; vegetation species, tidal channel development; lateral migration of island beaches; and target fish and prey species abundance.
Task 10: Project Completion Report
WDFW will provide a Draft progress re

Christine Read

Marchelle Foster

Closed - Project Status Report

Province	Subbasin	%
Lower Columbia	Columbia Lower	100.00%

Habitat

Restoration/Protection

Anadromous: 100.0%   Resident: 0.0%   Wildlife: 0.0%

Washington Estuary MOA (Public Tags)

None

None