Traffic Advisory San Joaquin County 06/05/2025 - 06/12/2025

State Route 4 – Lane and Ramp Closures, One-way Traffic Control at Old River Bridge

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

• Full on-ramp closures from Filbert Street to westbound SR-4/Crosstown Freeway for bridge work beginning Tuesday, June 10, through Wednesday, June 11, from 9:00 a.m. until 2:00 p.m.

   

• One-way traffic control at the Old River Bridge (San Joaquin/Contra Costa County line) for bridge inspection on Thursday, June 12, from 7:30 a.m. until 3:30 p.m.

Interstate 5 – Lane & Ramp Closures From Mathews Road 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:  

• Overnight, full closures of the Mathews Road on-ramp, French Camp Road on-ramp and Downing Avenue off-ramp on northbound I-5 for bridge work beginning Sunday, June 8, through Wednesday, June 11, from 9:00 p.m. until 6:00 a.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, June 8, through Friday, June 13, from 9:00 p.m. until 5:00 a.m. (northbound) and from 9:00 p.m. until 6:00 a.m. (southbound).   

• Overnight, 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, June 8, through Friday, June 13, 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 12 – Lane Closures
Moving Closures for Survey Work

San Joaquin County – The California Department of Transportation (Caltrans) will perform various closures on State Route 12 (SR-12) for maintenance and construction operations.  Work will occur as follows:

• Moving closures on eastbound SR-12 from the Mokelumne River Bridge (San Joaquin/Sacramento County line) to I-5 for survey work beginning Monday, June 9, through Wednesday, June 11, from 8:00 a.m. until 4:00 p.m. 

State Route 99 – Ramp and Lane Closures
Overnight Lane Closures on Northbound SR-99 In Stockton

San Joaquin County – The California Department of Transportation (Caltrans) will perform various closures on State Route 99 (SR-99) for maintenance and construction work within San Joaquin County.  Work will occur as follows:  

• Overnight, alternating closures of the #1 (left), #2 (middle) and #3 (right) lanes of northbound SR-99 from Cherokee Road to Hammer Lane for bridge work at the Calaveras River Overcrossing beginning Sunday, June 8, through Sunday, June 15, from 8:00 p.m. until 5:00 a.m.
  
•  Overnight, full closures of the Wilson Way on-ramp to northbound SR-99 beginning Saturday, June 7, through Sunday, June 8, from 10:00 p.m. until 9:00 a.m., and from Sunday, June 8, through Sunday, June 15, from 9:00 p.m. until 5:00 a.m.  
  
•  Long term full closure of the Calaveras River/Frontage Road Overcrossing of SR-99 due to bridge work.  Estimated completion date for bridge repairs is June 2025. Please seek alternate route.
  
• One-way traffic control on Eight Mile Road at SR-99 for tree work on Monday, June 9, from 9:00 a.m. until 2:00 p.m. 
  
   

State Route 120 – Overnight Ramp Closures From SR-120/Yosemite Avenue To SR-99

State Route 132 – Ramp Closures
Closure at Chrisman Road For Construction

San Joaquin County – The California Department of Transportation (Caltrans) will perform various closures on State Route 132 (SR-132) for maintenance and construction operations.  Work will occur as follows:

• Overnight, full on and off-ramp closures on westbound SR-132, and full off-ramp closures on eastbound SR-132 at Chrisman Road for excavation work beginning Sunday, June 8, through Friday, June 13, from 5:00 p.m. until 3:00 a.m. (westbound) and from 8:00 p.m. until 6:00 a.m. (eastbound.) 

Interstate 580 – Lane Closures At Patterson Pass Road For Construction 

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

• Overnight, alternating lane closures on eastbound and westbound I-580 at Patterson Pass Road for k-rail installation beginning Sunday, June 8, through, Friday, June 13, from 9:00 p.m. until 6:00 a.m. (eastbound) and from 7:00 p.m. until 3:30 a.m. (westbound.)