A downtown Tacoma light rail train derailed due to a faulty switch

A faulty switch is the reason a Sound Transit light rail train derailed early Wednesday in downtown Tacoma, the agency said.

No injuries were reported. The single-car T Line train was traveling at less than 10 mph, making the first round trip of the day after 5 a.m., with no passengers on board, near South Seventh and Commerce streets, spokesman David Jackson said .

A temporary switch was recently installed during the construction project to extend light rail tracks in the Hilltop neighborhood. The train was heading back south toward Tacoma Dome Station. The switch was replaced and service resumed at 10 a.m., Jackson said.

Sound Transit “will look into what happened” according to a post on Twitter. Two-track tracks were recently built near the north end of Theater District station, to replace a triangulation-shaped tail track where trains have changed direction since 2003.

The $283 million Hilltop expansion was supposed to open last month, but is delayed until a new March 31 target date. Several issues affected the schedule, including underground utility disputes and stray electrical currents. Wednesday’s derailment should not affect the project schedule, Jackson said.

Jose P. Rogers