State Route 99 Live Oak Streetscape, Safety and Roadway Improvement Project

LOOKING AHEAD: Local Street Closures Extended  

In construction, we routinely add a caveat that roadwork schedules are subject to change because of unexpected events. Well, that’s the case with the closures of Birch Street, Ash Street, Walker Way and Archer Avenue to State Highway 99. The closures are being extended about a couple weeks longer.

While excavating the roadway for the installation of new underground drainage and water systems, construction crews discovered some utility lines, including old water pipes, that weren’t identified in any plans. In construction parlance, we can that a utility conflict.

Resolving the issue has slowed progress of the work on this stage of construction on the south end of town. That has prompted the delay of reopening of Birch, Ash, Walker and Archer to Highway 99 expects until mid-October. Originally, the closures were expected to end in early October.

We’re reminding motorists that businesses are open during construction. Motorists can use L Street and Larkin Road to reach these businesses.

To access or cross the highway, we recommend using Elm Street (where there is a traffic signal at the intersection).

Please remember the traffic lanes are a little narrower again under the new roadway alignment and the construction zone speed limit has been reduced to 30 mph.

For project questions, contact Gilbert Mohtes-Chan at 530-741-4571, or call Caltrans Resident Engineer Dwayne Grandy at (530) 713-7814.

Please let your friends, family members, neighbors, associates, business owners and others know they can receive LiveOak99 construction and lane closure news and updates emailed to their inbox by signing up with Caltrans Public Information Officer Gilbert Mohtes-Chan at



September 28 – October 3

State Route 99 (Live Oak, Sutter County) between Juniper Street and Nevada Street north: North- and southbound motorists may expect various lane, auxiliary lane and shoulder restrictions from 6 a.m. to 6 p.m. Monday through Saturday for underground utility work.

Through Mid-October

State Route 99 (Live Oak, Sutter County) at Birch Street, Ash Street, Walker Way and Archer Avenue: Motorists may expect Birch, Ash, Walker and Archer closed at State Route 99 around-the-clock through mid-October for roadway construction. Motorists should use Elm Street or seek alternative routes.


Project Facts


  • Rehabilitate State Route 99 to a 40-year pavement life
  • Upgrade the drainage systems
  • Flatten the roadway cross slopes
  • Construct new continuous sidewalks
  • Improve traffic signals at three intersections of State Route 99 at Pennington Road, Elm Street and Kola Street
  • Create a pedestrian-focused downtown environment by enhancing parking and building access, wayfinding and signage, landscaping and facilities for bicyclists and pedestrians
  • Improve crosswalks, curbs, gutters, sidewalks and driveways
  • Upgrade curb ramps to current American with Disabilities Act (ADA) standards

Project Benefits

The project will make substantial improvements to the roadway, drainage systems and streetscape. The existing pavement shows signs of distress. The drainage systems need improvements, the pavement cross slopes fail to meet current standards and the existing curb ramps need to be upgraded to meet today’s Americans with Disabilities Act requirements. Three intersections require traffic signal improvements to enhance safety.

Funding Breakdown

Estimated total project cost - $36 million in local, state and federal funds

Project Schedule

Utility Relocation – 2019
Begin Construction – July 2020
Expected Completion – Fall 2021

Project Contacts

Johny Tan, Project Manager
Phone: (530) 741-5120

Gilbert Mohtes-Chan, Public Information Officer
Phone: (530) 741-4571

Alison Schmidt, City of Live Oak – (530) 695-2112