The second stage of construction at the Hopyard-Dougherty interchange with Interstate 580 is now underway.

The second stage, stage 1B, will include all the remaining improvements needed at the interchange except for the construction of an additional overpass which will span I-580, according to the city.

Stage 1A, which included the construction of retaining walls, grading and drainage improvements, was completed in April. The construction of the new bridge, which will run parallel to the existing Hopyard Road overpass, will begin sometime this coming winter.

This construction, along with the construction of an additional lane in each direction of I-580 between I-680 and Hopyard Road, represents the project's final phase.

At its scheduled completion in September, 1987, the Hopyard-Dougherty/I-580 interchange will feature a three-lane bridge for motorists headed toward Dublin or westbound I-580, and a separate two-lane bridge for those headed toward Pleasanton or eastbound I-580.

Exit ramps from I-580 will flare to four lanes each as they meet with the Hopyard-Dougherty bridges. Newly installed, computer-synchronized traffic signals will then direct motorists north into Dublin or south into Pleasanton.

The $13 million project is being financed by the North Pleasanton Improvement District, with monies collected from commercial developments in North Pleasanton. It is the first such major freeway project in Northern California to be planned, designed and entirely funded by the private sector.

I-580 Project Construction Schedule:

To see a reproduction of the original article and edition of Pleasanton Pathways, visit: June 9, 1986 Pathways.