Highway 101 through Palo Alto is always a headache during rush hour but drivers say, lately, it's a whole new kind of horrible.

Roadwork is largely to blame for the bottleneck.

A mile and a half section of 101 between University and Embarcadero is down a lane in both directions Caltrans says that will be the case for another year.

Crews are at work between Shoreline and University and drivers may be looking for alternate routes for quite a while. Starting next month, Bayshore Drive on both sides of 101 will go down to one lane.