Free Compliments of our Advertisers
Sonoma County Gazette
Highways 116 and 121 Intersection Roundabout

Funds approved to fix state route 116/121 intersection in Sonoma

May 15, 2020


Project will improve traffic circulation and safety while reducing congestion.

The California Transportation Commission met on May 13, 2020, and approved the State Highway Operation and Protection Program (SHOPP) for 2020. This is the first-ever SHOPP that is entirely based on performance and focused outcomes.

Project Site at intersection of Hwy 116/121 near SchellvilleIncluded in the 2020 program is funding in the amount of $19M to complete improvements at theintersection of Highways 116 and 121 southwest of the City of Sonoma. The money will become available in 2022. Measure M, the ¼-cent sales tax for transportation, was used to leverage the state dollars in order to fully fund the improvements. Measure M is contributing $5M.

“This intersection has needed updating for a long time, and thanks to Measure M and our partnership with Caltrans, it’s going to be a reality.” said Susan Gorin, Chair of the Sonoma County Transportation Authority (SCTA). 

The project will improve traffic circulation and safety for all users and reduce congestion by removing the current stop sign-controlled intersection and installing a roundabout at the intersection of Highway 121 and 116. The project will also widen the roadway to allow for turn lanes into and out of existing commercial uses.

The Park and Ride lot will be relocated; the parking capacity will remain the same in the new location. SCTA serves as the project sponsor and Caltrans will build the project.

CURRENT intersection of Hwy 116/121 near Schellville

“This is the gateway to Sonoma, and I am really excited to see this great project fully funded,” said Logan Harvey, SCTA Vice-Chair and Mayor of Sonoma. “Without our local sales tax funds and a good working relationship with Caltrans this would not be happening.”

The current cost estimate for this project is $24 million, and construction is currently scheduled to start in early 2023.

The environmental documentation for compliance with the National Environmental Protection Act / California Environmental Quality Act (NEPA/CEQA) and project approval was completed in April 2018. Design and right of way phases are underway and will be completed by 2022.

About the Sonoma County Transportation Authority: The Sonoma County Transportation Authority (SCTA) was created in 1990 and is governed by a twelve-member Board of Directors representing each of the nine cities. The SCTA plays a leading role in transportation in Sonoma County by securing funds, overseeing project delivery and long term planning. The SCTA acts as the countywide planning and fund programming agency for transportation-related issues.


Login to Make a Comment

Please support our sponsors:

Local Guide for takeout food

Sonoma County Restaurants who offer Take-Out Food during the Corona Virus Shelter-in-Place.
NOT on our LIST & MAP? Get LISTED:

Shelter-in-Place Sonoma County Business Directory - Coronavirus-COVID-19 Mandate.

Shelter-in-Place Sonoma County Business Directory - Coronavirus-COVID-19 Mandate. This is a work-in-process. PLEASE HELP US by sending missing info to

Fine Tree Care - Sonoma County Tree Services

Visit Fine Tree Care WEBSITE for a List of our SERVICES - Testimonials and to request a FREE Estimate

Flip through the pages of the print edition of the 2020 Sonoma County Gardeners Resource Guide

Your 2020 GUIDE to support locally-owned garden businesses and natural landscaping practices.

LOCAL GUIDE to Cannabis Dispensaries and Delivery Services, Sonoma County & Beyond.

LOCAL GUIDE to Cannabis Dispensaries and Delivery Services, Sonoma County & Beyond.All dispensaries have verified their information.