[3][1][5] A small shelter building was added in December 1990, with an asymmetric teal-colored metal roof supported by concrete pillars.

[7] By the late 2010s, the shelter became an "area of concern" for Amtrak, the city of Antioch, and the San Joaquin Joint Powers Authority (SJJPA) because it was "in a consistent state of disarray due to vandalism and transient use.

"[6] One particularly notable incident came in 2018 when law enforcement discovered a homeless encampment on the station's roof.

[8] Because of that incident, in early September 2019 the shelter structure was demolished and additional landscaping was added in January 2020.

[6] Issues continued after the demolition, including assaults on Amtrak employees and theft of a wheelchair lift.