California Department of Transportation

09/18/2026 | Press release | Distributed by Public on 09/18/2026 18:21

Traffic Advisory San Joaquin County 09/18/26

Traffic Advisory San Joaquin County 09/18/26

Published: Sep 18, 2026

State Route 4 - Lane Closures
One-Way Traffic Control

San Joaquin County - The California Department of Transportation (Caltrans) will perform various closures on State Route 4 (SR-4) for maintenance and construction work within San Joaquin County. Work will occur as follows:

  • Overnight, one-way traffic control from Whiskey Slough in Holt to the Old River Bridge (San Joaquin/Contra Costa County line) for paving work beginning Sunday, Sept. 20, through Friday, Sept. 25, from 8:00 p.m. until 4:00 a.m.
  • One-way traffic control from Maybeck Road to Port of Stockton Parkway for tree work on Monday, Sept. 21, from 8:00 a.m. until 4:30 p.m.
  • Overnight, intermittent one-way traffic control from SR-99/Golden Gate Avenue to the San Joaquin/Stanislaus County line for pavement work beginning Sunday, Sept. 20, through Friday, Sept. 25, from 7:00 p.m. until 7:00 a.m.

Interstate 5 - Ramp & Lane Closures
Closures From Manteca Bypass To Sacramento County Line

San Joaquin County - The California Department of Transportation (Caltrans) will perform various closures on Interstate 5 (I-5) for maintenance and construction work within San Joaquin County. Work will occur as follows:

  • Full off-ramp closure from southbound I-5 to eastbound SR-120/Manteca Bypass for litter removal on Thursday, Sept. 24, from 9:00 a.m. until 2:00 p.m.
  • Overnight, alternating lane closures on northbound and southbound I-5 from Hammer Lane to the San Joaquin/Sacramento County line for construction beginning Sunday, Sept. 20, through Friday, Sept. 25, from 9:00 p.m. until 5:00 a.m. (northbound) and from 9:00 p.m. until 6:00 a.m. (southbound).
  • Overnight, alternating full on and off-ramp closures at Hammer Lane, Eight Mile Road, SR-12 (Flag City), Turner Road, Peltier Road, and Walnut Grove/Thornton Road for construction beginning Sunday, Sept. 20, through Friday, Sept. 25, from 9:00 p.m. until 5:00 a.m. (northbound) and from 9:00 p.m. until 6:00 a.m. (southbound).

The above listed lane and ramp closures on I-5 between Hammer Lane and the San Joaquin/Sacramento County line are required as part of the I-5 Anchor Pavement Project that will improve 34 miles of existing pavement and shoulders from Hammer Lane in Stockton to the San Joaquin/Sacramento County line. The project will also replace on- and off-ramps with upgraded concrete at Eight Mile Road, State Route 12, Turner Road, Peltier Road, and Thornton Road/Walnut Grove Road. For project details visit https://dot.ca.gov/caltrans-near-me/district-10/district-10-current-projects/10-1e300.

State Route 26 - Lane Closures
One-Way Traffic Control For Striping Operations

San Joaquin County - The California Department of Transportation (Caltrans) will perform various closures on State Route 26/Fremont Street (SR-26) for maintenance and construction work within San Joaquin County. Work will occur as follows:

  • Overnight, intermittent one-way traffic control from SR-99 to Murray Road for striping operations beginning Tuesday, Sept. 22, through Friday, Sept. 25, from 8:00 p.m. until 5:00 a.m.
  • Overnight, intermittent one-way traffic control from Duncan Road to Flood Road/Front Street for striping operations beginning Tuesday, Sept. 22, through Friday, Sept. 25, from 8:00 p.m. until 5:00 a.m.

State Route 88 - Lane Closures
One-Way Traffic Control For Tree Work

San Joaquin County - The California Department of Transportation (Caltrans) will perform various closures on State Route 88/Waterloo Road (SR-88) for maintenance and construction work within San Joaquin County. Work will occur as follows:

  • One-way traffic control from Kettleman Lane to SR-12 West/Victor Road for tree work beginning Tuesday, Sept. 22, through Friday, Sept. 25, from 8:00 a.m. until 4:30 p.m.

State Route 120 - Lane Closures
One-Way Traffic Control For Tree Work In Escalon

San Joaquin County - The California Department of Transportation (Caltrans) will perform various closures on State Route 120 (SR-120) for maintenance and construction work within San Joaquin County. Work will occur as follows:

  • One-way traffic control from Third Street to Harrold Avenue for tree work on Tuesday, Sept. 22, from 8:00 a.m. until 5:30 p.m.

Interstate 580 - Ramp Closures
Overnight Closures At Patterson Pass For Construction

San Joaquin County - The California Department of Transportation (Caltrans) will perform various closures on Interstate 580 (I-580) for maintenance and construction work within San Joaquin County. Work will occur as follows:

  • Overnight, full on- and off-ramp closures on eastbound I-580 at Patterson Pass for construction beginning Sunday, Sept. 20, through Friday, Sept. 25, from 9:00 p.m. until 5:00 a.m.
  • Overnight, full on- and off-ramp closures on westbound I-580 at Patterson Pass for construction beginning Sunday, Sept. 20, through Friday, Sept. 25, from 7:00 p.m. until 3:30 a.m.

Motorists should expect 5-to-10-minute delays and use alternate routes whenever possible. All work is scheduled to occur as listed but is subject to change due to traffic incidents, weather, availability of equipment/materials, and construction-related issues.

For the safety of workers and other motorists, please Be Work Zone Alert. Caltrans also reminds motorists to #KnowBeforeYouGo by checking QuickMaps on your mobile device or visit quickmap.dot.ca.gov for real-time highway conditions.

California Department of Transportation published this content on September 18, 2026, and is solely responsible for the information contained herein. Distributed via Public Technologies (PUBT), unedited and unaltered, on September 19, 2026 at 00:21 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]