SAN MATEO -- Caltrain service was briefly disrupted Thursday afternoon after a truck hit the underpass of a San Mateo rail crossing, officials said.
Caltrain officials reported that about 2:15 p.m. a truck struck the crash bar on the underside of the Santa Inez Bridge, a fixture installed to help prevent cars from clipping the "very low" overpass. Trains were slowed to 10 mph as inspectors probed the bridge for safety concerns, and were allowed to resume normal speeds at 2:52 p.m.
Two trains, northbound No. 151 and southbound No. 152, experienced residual delays of 40 minutes and 14 minutes, respectively.
All four rail underpasses in the city of San Mateo are more than 100 years old and are scheduled to be replaced in July, Caltrain spokeswoman Christine Dunn said. The Santa Inez Bridge is the second highest of the four underpasses, clearing at 12 feet 3 inches.
The replacement of all four bridges, the Santa Inez Bridge, the Poplar Bridge, the Mt. Diablo Bridge and the Tilton Bridge, will take two years to complete, Dunn said.