Category Archives: Highway 4 Construction

Interstate 680 / State Route 4 Interchange Improvements

A recent headline announced that the California Transportation Commission approved $34 million in funding for upgrades to the Interstate Highway 680/state Highway 4 interchange. Concord Assemblymen Tim Grayson was active in securing this funding. Because of the size of the … Continue reading

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Route 4 in Contra Costa – Ramp meters Activate October 17 and October 31

The California Department of Transportation (Caltrans) will activate ramp metering on Route 4 in Contra Costa County beginning October 17, 2017. What is Ramp Metering? Ramp metering is a traffic management strategy using traffic signals and accompanying equipment and techniques … Continue reading

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Laser-equipped Drone Helps Improve Safety and Efficiency on Highway 4 Improvement Project

The Contra Costa Transportation Authority (CCTA) and Alta Vista Solutions showcased two emerging technologies on a construction project aimed to improve commutes on Highway 4. Engineers are piloting drones equipped with light detection and ranging (LiDAR) lasers–a surveying tool that … Continue reading

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July 2017 – Balfour Road Update

The Contra Costa Transportation Authority (CCTA) is beginning construction of the new Balfour Road Interchange at Highway 4. The Balfour Road and Highway 4 intersection is currently signalized, resulting in traffic backups during peak commute times. This project will replace … Continue reading

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Balfour Road Interchange at Highway 4

On April 11 CCTA and our partners broke ground on the Highway 4 and Balfour Road Interchange Project which will bring much-needed traffic relief to Brentwood and East Contra Costa County. The Balfour Road Interchange project will replace the existing … Continue reading

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Explore the Highway 4 Story Through Images

The Contra Costa Transportation Authority (CCTA) announces today the official launch of Story Through Images, a web feature devoted to celebrating the recently-completed Highway 4  Widening Project and ongoing BART construction project, a $1.3 billion investment in infrastructure in Eastern … Continue reading

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Spring 2017 – Balfour Road Interchange

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