# Santa Rosa Planet bids #148152

Santa Rosa Colgan Creek Riparian Tree Planting and Mitigation Services

**Posted:** November 09, 2026
**Respond By:** December 07, 2026
**Identifier:** 148152
**NAICS:** 115310, 237990, 111421

The City of Santa Rosa is seeking professional services for riparian tree mitigation at Colgan Creek and related trail and sidewalk projects.
- **Government buyer:** City of Santa Rosa; Transportation and Public Works Department, Capital Projects Division; Storm Water and Creeks. The work involves coordination with the City Project Manager and Environmental Specialist.
- **Scope:** Prepare sites, plant trees, provide watering and maintenance, monitor tree health and survival, and submit annual reports. The work supports mitigation for the Santa Rosa Creek Trail Access Pathway (West Side) and Corby Avenue Sidewalk Gap Closure projects under a CDFW Section 1600 agreement.
- **Trees:** The main planting list calls for 40 five-gallon trees: 21 coast live oaks (*Quercus agrifolia*) and 19 valley oaks (*Quercus lobata*). A separate Colgan Creek trail-mitigation exhibit calls for 25 trees, with at least 15 coast live oaks and valley oaks; species locations and quantities are to be field verified.
- **Key requirements:** At least 85% survival after five years for each project under the main scope; the separate exhibit also sets survival goals above 90% in Year 1 and above 85% in Years 3 and 5. A qualified biologist must monitor plant health. The consultant supplies materials and water, handles required permits and fees, and replaces trees or provides additional care when needed. Replacement trees require a further five years of monitoring.
- **Maintenance and reporting:** Watering is required during the first three dry seasons; maintenance and monitoring extend for five years. Annual reports include monitoring data, photographs, maintenance and planting results, and any recommended corrective actions, for submission to the City and relevant agencies, including CDFW.
- **Vendors named in the notice:** A-Tech Consulting; BIOMAAS, Inc.; CA Traffic Solution; Dudek; ECORP Consulting, Inc.; Environmental Science Associates; FirstCarbon Solutions; FlowWest, LLC; Michelia Arboriculture, LLC; Midwest Valley Corp; Prunuske Chatham, Inc.; Questa Engineering Corporation; RECON Environmental, Inc.; SWCA Environmental Consultants; Triangle Properties, Inc.; and WRA, Inc.
- **OEMs:** No commercial product manufacturer or OEM is identified; the requested trees are specified by species and container size.

### Description

The City of Santa Rosa is seeking proposals for riparian mitigation planting, maintenance, monitoring, and reporting services for the Colgan Creek Tree Mitigation Project (Project ID C02583). Work includes installing 40 trees, providing irrigation or hand-watering, maintenance, annual monitoring, and reporting associated with mitigation requirements for two City projects. The planting and maintenance work includes a five-year monitoring period and an 85% survival criterion. Proposals are due December 7, 2026, and must include separate cost and response files.

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