Downtown Project - Street Paving, Sidewalk, & Sewer Improvements

Downtown ProjectDowntown Project Goals

  • Make drainage improvements
  • Repair the sanitary sewer system
  • Repave the roadways
  • Upgrade pedestrian curb ramps to current standards

Downtown Project Construction Update: March 9, 2023:

The anticipated start date is February 21, 2023, and the estimated completion June 2023. 

The project involves removing and replacing concrete sidewalks, installing ADA curb ramps, widening the median island at Lytton Square to improve the health of the existing redwood trees, widening the sidewalk on Miller Avenue, and paving Throckmorton from Corte Madera Avenue to Old Mill School and Miller from Sunnyside Avenue to Throckmorton 

Project Construction Information signs will be posted at the project limits.

Residents and Businesses will be notified two weeks in advance of any sidewalk concrete replacement in front of their business and the temporary pedestrian detour routes

Depending on the construction impacts on parking free parking signs will be posted at some locations on Throckmorton Avenue from Corte Madera Avenue to Madrona Street and Miller Ave from Sunnyside Avenue to Throckmorton Avenue, however, a 2 Hour Max time limit shall still be observed.

What Is Happenidowntown_signsng: March 13th Through March 24th (Weather Delay Expected):

Depending on the effect of the rainstorm, Interstate Paving and Grading Inc. will work on:

  • Throckmorton Median Island at Lytton Square form and pour concrete for median curb, and asphalt plug along the new curb.
  • Northeast Corner Throckmorton and Bernard demo the existing curb ramp and sidewalk, form and pour concrete for the new ADA bulb out. 
  • Eastside of Miller Avenue at the Depot Plaza, demo and replace ADA concrete ramp. 
  • Relocate Granite Rocks from Lytton Square Median to Old Mill Park, rocks will be moved to Old Mill Park to help save the redwood trees in the median, by providing enough room to grow/accept water.

Downtown Parking and Traffic During Construction

During this work, there will be occasions of the lane closure and one-way traffic control with flagmen. 

Temp No Parking Signs will be posted around the construction area to allow the contractor to demo, remove, off-haul the existing sidewalks, and pour new concrete sidewalks. 

No traffic detour or road closure is expected during this phase of the project.

We will update you as more information becomes available. Work progression is weather dependent.

A MessagLocal business sign - shop mill valleye from the Chamber of Commerce:

As the construction of the Downtown Project Continues this spring, We Keep Ramping Up Our Support for Downtown Businesses & Nonprofits – Check Out Our New Signs Reminding You to #ShopMV!  Click Here 

Thank You for Your Patience 

City and Construction Management staff continue to mitigate construction impacts and are collaborating with the Mill Valley Chamber of Commerce to coordinate and notify local businesses of the planned work. The project team is available to answer questions and review concerns. 

The City of Mill Valley would like to send out a special thank you to the Mill Valley community for your patience during construction.

Contact Us:

Project updates are sent out in our Newsletter: Sign Up Here!

During Construction, please contact Hank Doll - the City designated Construction Manager for the project.

Hank Doll, PE
Construction Manager
(916) 826-3038 (Mobile)

A member of the project construction management team will be available in person at the Depot Plaza every Friday between 10 -10:30 AM to respond to any questions.

More About the Downtown Project

The Downtown Project will focus on upgrading the infrastructure - below and above ground - and improve the overall flow and safety of car, bike, and pedestrian travel in the downtown area.

Public Engagement: The development of the project will include a significant public outreach and engagement process to help determine the scope of the project. This includes the participation of a Design Advisory Committee. Community members will have opportunities to participate in a public engagement process, through stakeholder meetings, public workshops, and City Council Meetings. Throughout the engagement process, design engineers will develop conceptual plans that consider stakeholder feedback.

Phase I & II: 

Completed in 2022 and included pavement repair, upgraded ADA curb ramps, rehabilitated sewer and storm drain system along West Blithedale, Gardner, Corte Madera, Sunnyside and Throckmorton.

Phase III: 

This phase planned for construction in Spring 2023 will focus primarily on the Downtown paving and curb ramp improvements located along Throckmorton and Miller.  These curb ramps will be upgraded to meet current ADA standards which may require eliminating a few of the existing parking stalls.

Phase III Project Limit:

Map of Phase III Project Limit

downtown_map_edited august 2022

Phase III of the project will consist of :

Pavement improvements on:

  • Throckmorton Ave (from Corte Madera Ave to Old Mill St)
  • Miller Ave (from Throckmorton Ave to Sunnyside Ave). 

Design and construction of approx. 11 curb ramps located on:

  • Throckmorton Ave/Bernard St
  • Miller Ave/ Sunnyside Ave

9 ADA Parking stalls will be installed at the following locations:

  • Corte Madera Ave & Throckmorton Ave
  • Throckmorton Ave/Miller Ave/Bernard
  • Miller Ave and Sunnyside Ave

How to Get Involved

The Downtown Project will include significant public outreach and engagement to determine the scope of the project, to meet the community's needs. This will include stakeholder meetings, public workshops, and a citizen-led Design Advisory Committee.

Participate and Stay Informed: Receive updates by signing up for our newsletter.

Contact Us:

Ahmed A. Aly, Project Manager

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