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State Route 4 Closure Rescheduled Due to Weather

The closure of State Route 4 east of Discovery Bay has been moved to Nov. 22 due to adverse weather conditions, according to Caltrans.

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Stockton · November 14, 2026
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AI-generated editorial illustration from an imagined camera angle.
AI-generated editorial illustration from an imagined camera angle. Source image: stocktonia.org.

The planned closure of State Route 4 east of Discovery Bay has been postponed due to a stormy weather forecast, Caltrans officials announced Thursday (Source ID: 1). The full closure was originally scheduled for Sunday and is now expected to happen on Nov. 22 from 7 a.m. to 7 p.m. The roadway is being closed from Tracy Boulevard to the San Joaquin/Contra Costa county line east of Discovery Bay for the Old River Bridge maintenance project, according to Caltrans officials (Source ID: 1). [1]

Local access will be allowed for residents and to local businesses only within the closure area (Source ID: 1). Potential delays could be up to 30 to 40 minutes. People headed east on State Route 4 will be detoured onto Byron Road, then south onto Mountain House Parkway, then east on Interstate 205, then north onto Tracy Boulevard and from there back onto State Route 4 (Source ID: 1). [1]

People heading west will be detoured south on Tracy Boulevard, west on Interstate 205, north on Mountain House Parkway, then northwest onto Byron Road and back onto State Route 4 (Source ID: 1). The rescheduling of the closure was made to ensure the safety of workers and the public during the ongoing maintenance project (Source ID: 1). [1]

The planned closure of State Route 4 east of Discovery Bay has been postponed due to a stormy weather forecast, Caltrans officials announced Thursday (Source ID: 1). The full closure was originally scheduled for Sunday and is now expected to happen on Nov. 22 from 7 a.m. to 7 p.m. The roadway is being closed from Tracy Boulevard to the San Joaquin/Contra Costa county line east of Discovery Bay for the Old River Bridge maintenance project, according to Caltrans officials (Source ID: 1). [1]

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Local access will be allowed for residents and to local businesses only within the closure area (Source ID: 1). Potential delays could be up to 30 to 40 minutes. People headed east on State Route 4 will be detoured onto Byron Road, then south onto Mountain House Parkway, then east on Interstate 205, then north onto Tracy Boulevard and from there back onto State Route 4 (Source ID: 1). [1]

People heading west will be detoured south on Tracy Boulevard, west on Interstate 205, north on Mountain House Parkway, then northwest onto Byron Road and back onto State Route 4 (Source ID: 1). The rescheduling aims to ensure safety and minimize disruption during the maintenance work (Source ID: 1). [1]

The planned closure of State Route 4 east of Discovery Bay has been postponed due to a stormy weather forecast, Caltrans officials announced Thursday (Source ID: 1). The full closure was originally scheduled for Sunday and is now expected to happen on Nov. 22 from 7 a.m. to 7 p.m. (Source ID: 1). The roadway is being closed from Tracy Boulevard to the San Joaquin/Contra Costa county line east of Discovery Bay for the Old River Bridge maintenance project, according to Caltrans officials (Source ID: 1). [1]

Local access will be allowed for residents and to local businesses only within the closure area (Source ID: 1). Potential delays could be up to 30 to 40 minutes (Source ID: 1). People headed east on State Route 4 will be detoured onto Byron Road, then south onto Mountain House Parkway, then east on Interstate 205, then north onto Tracy Boulevard and from there back onto State Route 4 (Source ID: 1). [1]

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People heading west will be detoured south on Tracy Boulevard, west on Interstate 205, north on Mountain House Parkway, then northwest onto Byron Road and back onto State Route 4 (Source ID: 1). The change in the closure date was made to ensure the safety of workers and the public amid the forecasted stormy weather conditions (Source ID: 1). [1]

Sources

Stocktonia News

Prepared with AI assistance from the cited sources.

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