A tunnel the size of seven football fields was found near the Tijuana airport to a warehouse in Otay Mesa . It had electrical lights, ventilation, concrete floors, groundwater pumping and a pulley system for bringing goods in and out.
The half-mile passageway linked two U.S. warehouses in Otay Mesa with a stucco residence in Tijuana. This tunnel was outfitted with advanced rail, electrical and ventilation systems
A tunnel found in the warehouses of Otay Mesa from Tijuana had reinforced cinder block and wooden walls . It also had electrical outlets to charge jackhammers.
Outfitted with lighting, wooden floors and electric rail cars , the channel was "the most elaborate smuggling tunnel uncovered" in recent years," according to authorities. The entrance was accessed through a hydraulically controlled steel door.
An incomplete tunnel from Tijuana to Otay Mesa was found that had artificial lighting, ventilation, a hydraulic system used to descend drugs and people and guide rails equipped with a motor.
U.S. authorities say a highly sophisticated secret tunnel has been discovered on the border connecting San Diego and Tijuana, Mexico. Authorities have seized 8 tons of marijuana and 325 pounds of cocaine in connection to the drug tunnel.