Work will continue on the new pedestrian underpass at the Santa Clara, Calif., station. The underpass will connect the north- and southbound platforms, allowing two trains to pass through the station at the same time and improving safety for pedestrians in the station. Passengers at the station are boarding the train from a temporary platform that will be in use for approximately six months. The work is part of an 18-month station improvement project that will add a new wider, longer center-boarding platform and extend the southern platform 150 feet.

Work on the Mathilda Avenue bridge, which crosses the Caltrain tracks, is moving forward. The $25-million project will widen the bridge and improve the approach for vehicles crossing the bridge. The construction will not cause any disruption to train traffic.

Nov. 22-24 and again on Nov. 26, crews will replace switch timbers in the San Francisco train yard. Nov. 22-24, crews will weld on the tracks between the Millbrae and Hayward Park stations.

Nov. 20, crews performed some signal work between the Burlingame and Hayward Park stations and between the Redwood City and San Jose Diridon stations.

Nov. 21-24, crews will weld, resurface the tracks and replace crossties between the Sunnyvale and San Jose Diridon station.