A dry port (sometimes inland port) is an inland intermodal terminal directly connected by road or rail to a seaport and operating as a centre for the transshipment of sea cargo to inland destinations.
In addition to their role in cargo transshipment, dry ports may also include facilities for storage and consolidation of goods, maintenance for road or rail cargo carriers and customs clearance services. The location of these facilities at a dry port relieves competition for storage and customs space at the seaport itself.
A dry inland port can speed the flow of cargo between ships and major land transportation networks, creating a more central distribution point. Inland ports can improve the movement of imports and exports, moving the time-consuming sorting and processing of containers inland, away from congested seaports.
The term inland port is used in a narrow sense in the field of transportation systems to mean a rather more specialized facility that has come about with the advent of the intermodal container (standardized shipping container) in international transport. Rather than goods being loaded and unloaded in such ports, shipping containers can just be transferred between ship and road vehicle or ship and train. The container may be transferred again between road and rail elsewhere and the goods are only loaded or unloaded at their point of origin or final destination.
Shipping containers allow some functions traditionally carried out at a seaport to be moved elsewhere. Examples are the functions of receiving, processing through customs, inspecting, sorting, and consolidating containers going to the same overseas port. Container transfer at the seaport can be sped up and container handling space can be reduced by transferring functions to an inland site away from the port and coast.
Distribution may also be made more efficient by setting up the link between inland site and seaport as, say, a high-capacity rail link with a lower unit cost than sending containers individually by road. The containers are still collected from their origins or distributed to their ultimate destinations by road with the transfer happening at the inland site.