The Houston overweight corridor: 93,000 and 100,000 pounds with a permit
The cargo that lands here is dense: tile and stone, machinery, resin and chemicals, auto parts. Texas gives the port one of the most generous overweight corridors at any US gateway. Within a 30-mile radius of the port, on the permitted corridor routes, a six-axle set can run at 93,000 pounds gross and a seven-axle set at 100,000, against the 80,000-pound federal limit that caps cargo at about 44,000 pounds in a 40-foot container on the open road. A box loaded to its sea rating at origin can therefore leave Bayport or Barbours Cut legally, as long as the dock is inside the radius and the truck carries the permit.
The radius is the catch, and it is the detail Platton sees missed most often on Houston bookings: a heavy box sold as "corridor legal" for a Katy dock that sits 20 miles past the edge of it. Pasadena, La Porte, Baytown and most of Cedar Port are inside the radius; Katy, the 290 corridor and anything north of Beltway 8 are not, and neither is Dallas. For those docks a heavy container moves on a tri-axle with a state permit, or the cargo is transloaded near the port into two road-legal trailers. Platton checks the declared weight against the destination on the booking, so the choice is made before the box reaches the terminal scale.