[8] Passengers make a cross-platform transfer at an auxiliary island platform 0.6 miles east of Pittsburg/Bay Point station.

From this platform, the extension proceeds 9.1 miles (14.6 km)[4] east in the State Route 4 median to the city of Antioch[9] at a Hillcrest Avenue station.

[9] On October 14, 2010, BART issued a press release announcing that the agency had awarded a $26 million (equivalent to $36.3 million in 2023) contract to West Bay Builders, of Novato, "to build the transfer platform and make some of the necessary rail improvements to begin extending the line to a terminus station at Hillcrest Avenue in Antioch.

[3] The new stations reached 7,441 daily customer entrances and exits within the first three workdays, while ridership and parking levels at the previous terminal, Pittsburg/Bay Point, declined.

[19] In 2017, the San Joaquin Regional Rail Commission indicated that eBART could be extended to Tracy, where it would connect with the Altamont Corridor Express and the proposed Valley Link line.