Updates Prior to October 2017

Increased HAI construction activity on the north side of the Interim Roundabout began on Sept. 27.
 Parking on the east and west sides of Healdsburg Ave. have been lost and converted in to travel lanes for vehicles. This activity is expected to last for approximately 4 weeks. See below or click here for a detailed map.


The closure on the east side of the Interim Roundabout is in effect. The parking lot for Spoke Folk Cyclery, Valdez Family Winery Tasting Room and Pacific Union Real Estate on East Mill Street will be accessible from Center Street or East Street. This closure is expected to last for 3 months and is necessary to complete extensive underground work as efficiently as possible. Construction will include replacing old sewer and water mains, installing new storm drains and under grounding of utilities. See below or click here for reroute map.


For up-to-date information on  Healdsburg Ave. Improvements, please check out the “What’s Happening Now” section located in the right column. Or join our email list and we’ll keep you informed via email. Click here to join.

The Five-Way Intersection at Mill Street/Healdsburg Ave/Vine Street has been converted from an all stop intersection to an interim roundabout. A combination of paving marking, Interim Roundabout Picsignage and barricades have been installed to direct traffic flow. This will allow all lanes to remain open as construction moves into the next phase of excavation for the box culvert. See rendering below.

Large tractor trailers, RV’s and trucks will not be able to navigate the circle due to size limitations, and are advised to find alternate routes. All other vehicles should drive with caution through the intersection during this transition. Click here for a TRUCK RE-ROUTE MAP.


Click here to download rendering of the INTERIM ROUNDABOUT

Healdsburg Avenue Improvements is a multi-faceted engineering and urban design effort to improve the visual, pedestrian and vehicular experience for residents and visitors entering Healdsburg from the Highway 101.   The project scope covers four separate, but interconnected projects.  The area benefitting from this effort centers on Healdsburg Avenue, starting at Exchange Avenue and continuing north through the existing five-way intersection (Healdsburg Avenue, Mill Street and Vine Street).

Key to this project is improving the five way intersection – pedestrian safety and access, vehicular capacity (largely afternoon traffic turning west onto Mill Street) and resolving complicated signalization requirements of the future SMART train. After studying several alternatives during the CHAP process, a roundabout was deemed to be the most appropriate solution. Based on this conclusion, the CHAP process established a set of Roundabout Guiding Principles to inform the future design and engineering of the roundabout.

See rendering below of completed Healdsburg Avenue Improvements. Please note: Project completion is anticipated in the Fall of 2018. Click here to download RENDERING AND PROJECT DETAILS POSTCARD.

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