photo credit to: http://www.launion.gov.ph/index.php?option=com_content&task=view&id=569&Itemid=629


    Situated in Poblacion,Aringay,La Union,this 500-meter tunnel was made in 1913 during the American regime.  Intended for the trains of the Philippine National Railways (PNR) bound for Baguio City,it was later abandoned by the Commonwealth Govenment because of the then impending Second World War.  Although locals say,the tunnel already existed during the Spanish era,it was only during the American occupation that it was developed and fortified,thus making it more than a century old.  During the Japanese occupation,the tunnel was used as headquarters of the Japanese Imperial Army because of its durability against US bombings,rising speculations that hidden treasures were buried in the area.  Similar structures could also be found in Tuba,Benguet which were supposed to be part of the ambitious railway system.
    All in all,the abandoned PNR track has a total length of approximately 40.4 kilometers from Aringay town proper to Baguio City.  Aringay's Centennial Tunnel is 7.6 meters wide and with a depth of 4.5 meters.
    Located within the Northwestern Luzon Growth Quadrangle (NWLGQ),the historic structure is being proposed by the Municipal Government of Aringay to be converted into a National Road from Aringay,La Union to Baguio City for purposes of employment opportunities,increased production in Agricultural and Non-Agricultural sectors,transportation accessibility and tourism market. (Israel O. Rudio,PITO-LU)


Getting there…

By air:
    One may opt to take a plane from lands which lands directly in San Fernando City.

By land:
    There are several buses that pass through la union. Although the ride may be quite long,because of all the stopovers,sometimes it is simpler to hire a private vehicle or take ones own. Travel time by bus is 6-8 hours by car,4-5.