CHAPTER 1: LOVERIDGE

Breaking Ground

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New overcrossing at Loveridge Road interchange

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New eastbound lanes on Highway 4

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Aerial view of the new Loveridge Road interchange

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Landscaping next to Highway 4

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Loveridge Road going across Highway 4

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Crews installing barriers with decorative treatment for Loveridge Road overcrossing

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Crews installing forms to pour concrete for barriers on Loveridge Road overcrossing

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Crews installing form work for deck of new Loveridge Road overcrossing

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Crews installing form work for deck of new Loveridge Road overcrossing

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Crews installing form work for deck of new Loveridge Road overcrossing

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Crews installing rebar for deck of new Loveridge Road overcrossing

The Loveridge Road segment was the first phase of the Highway 4 Corridor Projects to enter into construction and the closest to the existing Pittsburg/Bay Point BART terminus. With the exception of only one structure, the entire 33-mile stretch of the main Highway 4 corridor was to be reconstructed. Breaking ground on the Loveridge Road segment signified the official start of the Highway 4 Corridor Projects — and marked the beginning of six years of meticulously planned construction.

One of the project’s longest segments, Loveridge Road was also among the most challenging to execute. The bridge was constructed in three different phases — the technical equivalent of constructing three different bridges. As each phase was completed, traffic flow was transferred to the new bridge segment, and the older segment demolished, in a carefully orchestrated process. Keeping 130,000 vehicles per day flowing while replacing every square meter of concrete and laying new track in the median required a highly complex yet flexible design strategy — utilizing crossovers, traffic switches, precast parts, and more.

“The Highway 4 widening and BART extension projects would not have been possible without the support of Contra Costa voters in 2004, or without the help of partner agencies. We look forward to continued public support for additional innovations and improvements on the Highway 4 corridor in the future.”
– Dave Hudson, Chair, Contra Costa Transportation Authority

Highlights

timeline iconTimeline: June 2010 to December 2013
segment iconSegment: Loveridge Road to Somersville Road/Auto Center Drive
mileage iconNew lane miles added: 7.6
investment iconCapital investment: $74.1 million
contractor iconContractor: O.C. Jones and Sons, Inc., Berkeley, CA

Key Enhancements

  • Widened Highway 4 from four to eight lanes, including a High-Occupancy Vehicle lane in the eastbound and westbound directions
  • Reconstructed the Loveridge Road Interchange to provide additional local street capacity, modernized signalized intersections, and ramp metering capabilities
  • Constructed the BART median, including a BART bridge over Century Boulevard
  • Constructed auxiliary lanes in the eastbound and westbound directions of Highway 4

Did You Know?

The original design for the Loveridge Road segment included using an old railroad alignment parallel to the highway as the path for the planned BART extension. When this proved infeasible, CCTA redesigned the segment east of the Loveridge Road Bridges to include a wider median that could accommodate the new BART extension.