Gowanus Canal: 4th Avenue IND Station
The IND subway line continues east from the canal on the elevated viaduct between 9th and 10th streets to the elevated 4th Avenue Station.
This station and the 9th/Smith Street station are "local" stations, although there is actually no service on the express tracks, which may have been built simply to provide an opportunity for future system expansion. The southbound G train terminates at 9th/Smith, then performs a crossover at the 4th Avenue station, resting on the express track east and then performing another crossover to return on the northbound local track, thus making it difficult to actually implement express service on the express tracks. The tracks go subterranean at 4th Street as they head toward Prospect Park and the F train terminus at Coney Island.
Next: Gowanus Canal: Ninth - Twelfth Streets