Category Archives: Highway 4 Construction

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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Highway 4 Construction Work – Week of September 24, 2016 – The State Route 4 Widening Work has been completed

Closures on State Route 4 The State Route 4 Widening Work has been completed and no further lane closures will be required at this time for the Widening Improvements between Loveridge and Sand Creek Road. For information on planned lane … Continue reading

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