6 to the city center. It is out of service from MP 177 west to Katy. Connection to this line is now provided via the BNSF in Sealy, TX Local traffic only. The former MKT Eureka yard is located just north of I-10 inside Loop 610. T. C. Jester Blvd.
Traffic is moderate.
Houston is served by one switching railroad. The Port Terminal Railroad Authority. Generally, the PTRA serves the Port of Houston and surrounding chemical complexes. The PTRA is an association but has its own locomotives also. Its servicing area is inside North Yard and not visible to the public.