Tragedy on Route 2: Two La Plata Architects Die in Rollover Crash After Mar del Plata Inspection
A routine professional inspection in Mar del Plata turned into a devastating loss for the province’s architectural and public infrastructure community on Tuesday afternoon.
The victims were key officials serving within the Infrastructure Directorate of the Buenos Aires Ministry of Justice. Their vehicle, a Ford Ranger carrying four state personnel, drifted from its trajectory for reasons still under formal investigation by judicial authorities, ultimately overturning on the central median of the busy highway leading toward the City of Buenos Aires.
The Crash Scene and Emergency Response on the Chascomús Corridor
The accident unfolded during daylight hours on a heavily traveled stretch of the Buenos Aires-Mar del Plata corridor.
Sebastián Esteban Comai sustained fatal injuries and died at the scene of the impact. Alejandro Jorge Mazzoni was quickly pulled from the wreckage and rushed under emergency protocols to the San Vicente de Paul Municipal Hospital, where he succumbed to his severe injuries hours later. Two other colleagues riding in the vehicle—Gustavo Roberto Barreto, 44, and Uriel Alejandro Sánchez, 48—suffered minor injuries and were treated by local medical personnel before being stabilized and declared out of immediate danger.
Professional Legacies and Public Tributes Across La Plata
Comai was widely respected not only for his technical work in public infrastructure but also as a dedicated educator. He served as a professor at the Faculty of Architecture and Urbanism of the National University of La Plata (UNLP) and built an extensive professional resume that included a long tenure at Banco Hipotecario.
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The Buenos Aires Province College of Architecture and Urbanism (CAUBAUNO) released an official statement honoring Comai’s memory, highlighting his vital contributions as an institutional collaborator and academic mentor. Friends and former colleagues utilized social media to share memories of his trademark warmth and professional generosity.
Mazzoni balanced his demanding public engineering duties with a vibrant creative life as a musician in La Plata.
Judicial Inquiry and Ongoing Investigations
The legal framework surrounding the fatal crash is currently being managed by the Functional Instruction Unit (UFI) No. 10 of the Dolores Judicial Department. Specialized teams from the Chascomús Highway Police deployed to the crash site immediately following the alert to carry out rigorous forensic reconstructions and skid-mark mapping.

Investigators are evaluating mechanical variables, road conditions, and environmental factors along the Route 2 corridor to determine the precise sequence of events that caused the Ford Ranger to leave the asphalt. As the judicial process continues, colleagues and loved ones continue to mourn a profound loss for the provincial civil service and the architectural community of Buenos Aires.