Maintenance teams from the Department of Public Works and Highways (DPWH) Davao City 3rd District Engineering Office have initiated repair and rehabilitation activities at the Buhangin Underpass in Barangay Buhangin, Davao City, starting April 20, 2026. Initial work focuses on excavation and base preparation at the project site.
Project Timeline and Scope
The Department of Public Works and Highways–Davao Region (DPWH-Davao) announced that it aims to complete the repair and rehabilitation of the Buhangin Underpass by the second week of May 2026. Construction began on April 20, 2026, with excavation and base preparation currently ongoing. These will be followed by the installation of a precast-lined canal and concreting of gap sections to ensure a stronger and more effective drainage system in the area.
Public Advisory
In a Facebook post on April 24, 2026, DPWH-Davao wrote, “Nagahangyo kami sa inyong pasensya ug kooperasyon samtang ginabuhat ang pagrepair alang sa safety sa dalan ug improvement sa drainage sa maong lugar (We ask for your patience and cooperation while the repairs are being carried out to ensure road safety and improve drainage in the area).”
Rehabilitation Details
DPWH-Davao stated that the rehabilitation aims to replace the old and damaged canal with a new precast-lined canal and install steel gratings. These measures are intended to address water buildup from the elevated portion of the underpass, which has caused flooding and traffic congestion in the area.
Temporary Closure and Alternative Routes
Earlier, the City Transport and Traffic Management Office (CTTMO) announced the temporary closure of the Buhangin Underpass from April 17 until May 11 for rehabilitation, in line with City Ordinance No. 0217-26, series of 2026. According to CTTMO’s advisory, during the closure, there will be no left turn from Tigatto Bypass Road to C.P. Garcia Highway and no left turn from Cong. M. Garcia Road to Buhangin Milan, except for heavy trucks. Additionally, no left turn will be allowed from Dumanlas Road to C.P. Garcia Highway. Motorists are advised to use alternative routes to avoid heavy traffic and delays in the area.
Importance of the Underpass
The Buhangin Underpass is a vital infrastructure along Diversion Road in the Buhangin area, helping reduce traffic in the city. However, due to its low-lying tunnel, it relies on a drainage and pumping system. During heavy rains or equipment issues, water can accumulate, causing flooding and disrupting traffic flow. The rehabilitation aims to mitigate these issues and improve overall road safety and efficiency.
