The Caldecott Tunnel Project
The Caldecott Tunnel connects Alameda and Contra Costa Counties via State Route 24. The Caldecott Improvement Project proposes to alleviate traffic congestion along Route 24 by constructing a fourth bore of the Caldecott Tunnel.
The goals of the Caldecott Improvement Project are to:
Lead Agencies for the Environmental Process
Federal Highway Administration (FHWA)
The California Department of Transportation (Caltrans)
Participating Agencies for the Environmental Process
Metropolitan Transportation Commission (MTC)
Alameda County Congestion Management Agency (ACCMA)
Contra Costa Transportation Authority (CCTA)












