The Ban Phachi Junction Railway Station constructed an underpass tunnel beneath the railway tracks before 1947 (B.E. 2490). This tunnel was built concurrently with the new Ban Phachi Junction Station after the old one was bombed during World War II. The tunnel was designed with the train tracks overhead for trains to pass, while the tunnel itself served as both a pedestrian walkway and an air-raid shelter during the war.
Currently, this tunnel is no longer in use. The station master has erected a fence around it to prevent villagers from entering due to potential danger, as the tunnel interior is flooded and inhabited by a large number of fish. From the exterior, no trace of the tunnel is visible.
The Ban Phachi Junction Railway Bridge (Footbridge) was constructed after World War II to replace the railway tunnel that was severely damaged in the war and deemed too difficult to repair. The footbridge was built instead to ensure the safety of local residents, given the high volume of daily train traffic.
This original footbridge was constructed from wood and steel, measuring approximately 100 meters long and 2 meters wide, with multiple access points. While still somewhat usable today, it sees little traffic because the State Railway of Thailand has since built a reinforced concrete pedestrian overpass with a roof to replace it. Simultaneously, a level crossing was also established to allow vehicles to pass from the Phachi Market directly to Wat Phachi, precisely where the tunnel and the railway housing were located. Consequently, most people now utilize the level crossing.
