The inspection station is a two-story brick building, with a gabled roof, and a hip-roofed porte-cochere that extends across the southbound traffic way.
The building has Colonial Revival styling, and is basically symmetrical, with a center entrance and flanking sash windows with concrete sills.
The porte-cochere is supported by square wooden columns (engaged to the building at the western end), with a wraparound frieze below the roof.
It was built as part of a program to improve border security, prompted by the increasing use of the automobile, the smuggling of alcohol during Prohibition, and the tightening of immigration laws in the early 1920s.
Because of its remote location, it was designed to include housing for the principal customs and immigration officers and their families.