Might as well create a new thread for this upcoming project.
Based on the cost estimate presented at the California Transportation Commission meeting on September 25, 2019, the cost estimate has increased over twofold to $520.9 million. A 2015 study estimated the cost at between $125 million and $200 million. Measure M only allocated $175 million to the project.
Does it involve freeway widening? I thought I was mostly an electrical issue to power the scanner towers and speed sensors over the express lanes
Yes, the dual-lane option requires some widening, according to their application for the right to collect tolls.
During the public scoping process, a fourth alternative was presented to the public that would convert the existing HOV lane into a single ExpressLane and add a second express lane in each direction with standard lane (12 feet) and left and right shoulder widths (10 feet). Since the scoping process, Caltrans has determined that Alternative 4 would result in Caltrans approval of non-standard lane and shoulder widths would be required. This widening can mostly be accommodated within the existing Caltrans ROW. However, spot widenings will be required to add weave lanes (if warranted) at ExpressLanes ingress/egress locations & CHP enforcement areas and to maintain sight distance. The total cost for this alternative is estimated at $520.9 million.