Unofficial Notice of Invitation to Bid (NIB)

Sonoma County Water Agency is seeking bids from qualified and interested contractors for the following project titled, Request for Proposals for Habitat Restoration Projects in Support of the 2026 Stream Maintenance Program (Watershed Partnership Program), identified under Solicitation ID: 25/26-051. Work is to be performed near 404 Aviation Blvd, Santa Rosa, CA 95403, USA in Sonoma County.

Create a Free account to view ALL details and documentsNo credit card required

General Project Description

The Sonoma County Water Agency (Sonoma Water) invites proposals from firms to provide habitat restoration or enhancement services for the 2026 Watershed Partnership Program (WPP) in support of its Stream Maintenance Program (SMP). The program aims to conduct stream maintenance activities, comply with environmental regulations, and maintain flood capacity while enhancing natural resources. Projects will focus on off-site mitigation, improving water quality, restoring habitats, and ecosystem functions within Flood Control Zones 1A, 2A, 3A, 5A, and 8A in Sonoma County. The goal is to restore or enhance a combined area equivalent to at least 10% of the total area impacted by Sonoma Water’s stream maintenance construction activities, with an estimated minimum of 1.30 acres of restored/enhanced habitat. Projects must be installed by the end of 2026 or March 2027 and include a 5-year maintenance, monitoring, and reporting period. Proposers are encouraged to request Sonoma Water funding of $100,000 or less per project.

General Bid Items

Quantity: - Unit: - Work Item: Native plant re-vegetation, Specifications: establishing native trees, shrubs, and grasses, with a minimum survival rate of 75% at the end of the fifth year.
Quantity: - Unit: - Work Item: Invasive plant removal, Specifications: 100% removal of target weeds each year for the project term or a minimum 50% cover (or 50% increase in cover) by natives at the end of the fifth year.
Quantity: - Unit: - Work Item: Bioengineering activities.
Quantity: - Unit: - Work Item: Erosion control measures.
Quantity: - Unit: - Work Item: Bank stabilization.
Quantity: - Unit: - Work Item: Livestock management, Specifications: including exclusionary fencing or grazing rotation to benefit habitat.
Quantity: - Unit: - Work Item: Installation of species-specific habitat features, Specifications: including large woody debris, boulders, or step-pools.
Quantity: - Unit: - Work Item: Watershed-based sediment or other contaminant control.
Quantity: - Unit: - Work Item: Project installation, Specifications: to be completed by end of 2026 or March 2027.
Quantity: - Unit: - Work Item: Project maintenance, monitoring, and reporting, Specifications: covering a 5-year period post-installation, including annual monitoring, technical reports, and photo documentation.

NAICS Classification

NAICS 237990 – Other Heavy and Civil Engineering Construction (For stream maintenance, erosion control, bank stabilization, bioengineering, and general watershed improvement projects.), NAICS 541620 – Environmental Consulting Services (For habitat restoration planning, environmental compliance, monitoring, and technical reporting.), NAICS 115112 – Soil Preparation, Planting, and Cultivating (For native plant revegetation, invasive plant removal, maintenance, and related horticultural services.), NAICS 238910 – Site Preparation Contractors (For sediment removal and site clearing activities related to stream maintenance and restoration.), NAICS 238990 – All Other Specialty Trade Contractors (For specialized habitat feature installation and livestock management infrastructure.)

Records and Due Date

This bid opportunity was entered into BidAmerica on February 2, 2026, and was last updated on February 2, 2026. All bids and/or proposals are due on March 18, 2026.

Contractors may log in or create a free BidAmerica account to view full project documents, plans, specifications, addenda, submission requirements, and more project details issued by Sonoma County Water Agency.

Legal Disclaimer

All bidders are responsible for reviewing and verifying all official bid documentation directly from the issuing agency. BidAmerica aggregates public bid information for advertisement purposes for contractors and government agencies convenience. This Notice of Invitation to Bid is for reference purposes only and is not an official or complete representation of any documents issued by Sonoma County Water Agency. BidAmerica does not guarantee the accuracy, completeness, or timeliness of any information displayed and shall not be held liable for any errors, omissions, misinterpretations, or damages resulting from reliance on this summary. Contractors must obtain all official information—including plans, specifications, addenda, deadlines, submission requirements, qualifications, and bidding conditions—directly from Sonoma County Water Agency prior to bidding.