Interstate 680 between Walnut Creek and San Ramon will be getting faster this summer.
Drivers will pay a toll if they want to hop into this lane and avoid traffic. The cost depends on how congested the freeway is, since it is based on demand they can't predict what it will cost, but express lanes already in place on Interstate 580 are costing drivers around a $1.60 for a 15 mile drive.
The hope is to make these express lanes available by August.