A longer western extension to the Tacoma Community College campus via South 19th Street is also planned to open in 2041.

Sound Transit plans to extend the T Line by 2.4 miles (3.9 km) to the Stadium District and the Hilltop area west of Downtown Tacoma in late 2023. It was designated as the Orange Line in 2019 and renamed to the T Line in 2020. A sixth station, Commerce Street/South 11th Street, was opened in 2011. Service on Tacoma Link began on August 22, 2003, at five stations, replacing a downtown shuttle bus. It was the first modern light rail system to be constructed in Washington state and succeeded a former streetcar system that ceased operations in 1938. Tacoma Link was approved in a regional transit ballot measure passed in 1996 and began construction in 2000. Fares are not charged and operating expenses are funded by a subsidy from a downtown business association. Tacoma Link runs for eight to 14 hours per day, using streetcars at frequencies of 12 to 24 minutes. The line carried 972,400 total passengers in 2016, with a weekday average of over 3,200 boardings. It travels 1.6 miles (2.6 km) between Tacoma Dome Station and Downtown Tacoma, serving six stations. The T Line, formerly known as Tacoma Link, is a light rail line in Tacoma, Washington, part of the Link light rail system operated by Sound Transit.

Link rail seattle