U.S.–MEXICO CROSS-BORDER TRANSPORT
Two countries, two sets of rules, one movement.
Southern picks up the load, takes it across and delivers it. Each country has its own roads, permits and crossing requirements, so the loaded combination, both routes and the receiving date are planned as one movement before the truck rolls.
A crossing is not one event at a booth. Operating responsibility, equipment, custody and documents each have a state on the Mexican side, at the crossing and on the U.S. side. If one of them is open when the load arrives, the load waits.
Southern records the load's condition at pickup and holds custody on every leg it runs.
Routes and permits, the schedule and the receiving point are planned the same way, stage by stage, and rechecked whenever the load, the equipment, the route, the documents or the date changes.
Southern is the carrier the client contracts. It runs the international movement into and out of Mexico, and the legs it does not run itself are operated by a company in the same industrial group.
Southern delivers and picks up international loads in Mexico.
A / Mexico
When Southern Heavy Haul Inc. runs the international movement in Mexico, the handoff can occur at the Mexican origin or destination.
When equipment, route, permits and crossing conditions allow, the loaded combination may continue across the border.
B / Inside Mexico
When a project also needs a move between two points inside Mexico, Southern coordinates Tresin de México for that leg — or the client contracts them directly, when that suits the project better. Tresin is part of the same industrial group as Southern, operating in Mexico. The releasing and receiving entities, cargo condition and acceptance requirements are defined for the direction of travel.
When crane or other field work is required on the Mexico side, that operation is assigned separately and the transport handoff is planned around it.
Southern keeps the three records aligned. Required documents depend on the move.
Weight and dimensions as shipped, cargo condition, center of gravity when known, support and securement points, photographs and drawings.
Assigned operating entity, custody, driver, tractor and trailer, loaded combination, permits, route and crossing window.
Commercial and transport documents, customs release status, release instructions, permits and receiving instructions.
A power transformer is ready to cross before the receiving site can accept delivery.
Use current shipping drawings and identify any weight, dimension or handling details still missing.
Name the entity responsible for each leg and where it takes over.
Check the loaded combination against both routes and the port of entry.
Coordinate the crossing window with the parties responsible for customs release.
Different crossing and receiving windows call for a review of staging, custody and release for the next segment.
Plan delivery on the trailer to the agreed receiving point.
The border is one event in the movement, planned from the start.
See offloading and final placement in Crane & Rigging →Eight of the eleven operating points are truck yards: that is where equipment is staged, loads are reviewed before the crossing and field work is coordinated. The other three handle planning and coordination.