Jefferson County Civicplus #WQ-26-041

Engineering and Permitting Services for Dosewallips River Habitat Restoration Project

Jefferson County Public Health is seeking a multi-disciplined engineering firm for the final design and permitting of the Dosewallips River Powerlines Reach Habitat Restoration project near Brinnon, WA. - Government Buyer: - Jefferson County Public Health Department (WA) - Project Scope: - Final, construction-ready design and permitting for river and floodplain habitat restoration (River Mile 1.0 to 2.0) - Restoration actions include installation of 41 engineered log jams (ELJs) of various types - Riparian planting over 18.2 acres, including channel bank, floodplain, upper bank, and conifer underplanting - Invasive species treatment and mechanical control - Hydraulic modeling (preferably HEC-RAS 6.4.1 or later) - Environmental assessments, cultural resources surveys, and public outreach - Coordination with tribal and public stakeholders - Products/Services Requested: - Large Apex ELJs (8 units, CO-10) - Small Apex ELJs (13 units, CO-11) - Floodplain Roughness ELJs (9 units, CO-12) - Low Profile ELJs (11 units, CO-13) - Channel bank, floodplain, upper bank, and conifer underplanting (various quantities, CO-15 to CO-20) - Construction support services: mobilization, erosion control, site isolation, fish exclusion, access and staging, fencing, temporary bridges, seeding/mulching - Unique/Notable Requirements: - Expertise in salmonid biology, river ecology, fluvial geomorphology, and engineered log jam design - Compliance with state and federal permitting, including cultural resource and environmental documentation - Use of HEC-RAS 6.4.1 or later for hydraulic modeling - Engagement with local landowners, tribes, and agencies - Estimated construction cost is approximately $4.7 million; design and permitting budget is $150,000 - No specific OEMs or vendors are named in the solicitation

Description

Jefferson County, WA, is seeking proposals from a multi-disciplined engineering firm to develop a final habitat restoration design and permits for a section of the Dosewallips River (River Mile 1.0 to 2.0) upstream of Brinnon, WA. The project aims to restore critical spawning and rearing habitat for Hood Canal summer chum and Puget Sound Chinook salmon. The scope includes civil and structural engineering, surveying, geotechnical engineering, geology, hydrology and hydraulic analysis, environmental assessments, and permitting. The project is funded through a grant from the Washington State Recreation and Conservation Office Salmon Recovery Funding Board and involves coordination with tribes, local entities, and the public.

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