Boulder Rolls Over Car on Kennon Road
Benguet Rockfall: A Stark Reminder of Monsoon’s Power and Preparedness
Table of Contents
July 19, 2025, 16:10:38 – As the Philippines continues to grapple with the persistent effects of the southwest monsoon, amplified by the recent passage of Tropical Storm Crising, a dramatic rockfall incident along kennon Road in Benguet serves as a potent and timely reminder of nature’s formidable power. The event, which occurred on Saturday afternoon, underscores the critical importance of disaster preparedness and resilient infrastructure in regions vulnerable to extreme whether.
The Incident: A Tumbling boulder and Devastating Impact
On Saturday afternoon, at approximately 1:15 PM, a important rockfall occurred in Camp 7 along Kennon Road, a vital artery connecting Baguio City to the lowlands.A massive boulder, dislodged by the relentless heavy rains battering the upland province, cascaded down the mountainside, striking and demolishing a home situated perilously close to the road. The destructive force of the rock also smashed a vehicle.
Fortunately, in this instance, no human casualties were reported. The house,tragically impacted,was unoccupied at the time of the incident. The family residing there had been proactively evacuated by local authorities in anticipation of the severe weather conditions brought about by Tropical Storm Crising and the prevailing southwest monsoon, commonly known as “habagat.” A dog, tho, was lost in the devastating event.
The immediate aftermath saw the swift deployment of response teams to the scene. Their primary objectives were to conduct a thorough inquiry into the rockfall and to provide essential assistance to those affected. The Baguio City government, through its social welfare and development office, committed to addressing the needs of the displaced residents, ensuring they received necessary support during this challenging period.
Kennon Road Closure and Ongoing Hazards
In the wake of the rockfall, Kennon Road was declared closed to traffic as of 4 PM on Saturday.The Department of Public Works and Highways (DPWH) Cordillera cited “continuous rockfall at the entrance of the rockshed” as the reason for the closure, highlighting the persistent danger posed by the unstable mountain slopes. This closure considerably impacted transportation and access to and from Baguio City, emphasizing the road’s critical role and the vulnerability of its infrastructure.
Meteorological Context: Monsoon’s Grip on the Philippines
The incident occurred against a backdrop of continued adverse weather. According to the state weather bureau PAGASA’s 4 PM forecast bulletin on Saturday, the southwest monsoon remained a dominant weather system affecting the country. Tropical Storm Crising, while having moved outside the Philippine Area of Responsibility, had intensified the monsoon’s impact.
Benguet,along with other provinces in the Cordillera Administrative Region,was forecast to experience occasional rains due to the habagat. PAGASA had issued warnings of potential floods and landslides in these mountainous provinces, attributing the risks to the moderate to heavy rainfall associated with the monsoon. This meteorological context directly links the rockfall event to the broader weather patterns impacting the nation.
Understanding Rockfalls: Causes, Risks, and Mitigation
Rockfalls are a natural geological phenomenon, but their frequency and severity can be significantly exacerbated by human activities and extreme weather events.
Causes of Rockfalls:
Weathering: The natural breakdown of rocks through physical and chemical processes (e.g., freeze-thaw cycles, acid rain) weakens rock structures.
Water Infiltration: Rainwater seeps into cracks and fissures in rocks. When this water freezes,it expands,exerting pressure that can widen cracks. Upon thawing, the water can lubricate potential failure planes.
Vegetation: Tree roots can penetrate rock crevices, widening them over time.Conversely, the removal of vegetation can destabilize slopes.
Earthquakes: seismic activity can trigger the detachment of unstable rock masses. Human Activities: construction, road building, and mining can alter natural slope stability, sometimes leading to rockfalls.
Risks Associated with Rockfalls:
fatalities and Injuries: Direct impact from falling rocks can be lethal.
Property Damage: Buildings, vehicles, and infrastructure can be severely damaged or destroyed. Transportation Disruption: Roads and railways can be blocked, leading to significant economic and social impacts.
Environmental Damage: Rockfalls can alter landscapes and impact ecosystems.
Mitigation and Preparedness Strategies:
Geological Surveys and Monitoring: Regular assessment of slope stability and identification of hazardous areas are crucial.
Engineering Solutions:
**Rockfall