Catastrophic damage to a building adjacent to a demolition and new construction site.
The adjacent building suffered a severe underpinning failure after the demo was completed and the construction was in progress.
The local municipality demolished the adjacent building after condemning it.
The insured underpinning contractor had allegedly performed improper excavation and underpinning, including a lack of dewatering, leading to the underpinning failure.
There were numerous conflicting elements of testimony and documentation amongst the multiple other involved parties warranting further investigation.
Investigative Steps Taken
Severely damaged building was inspected, along with the adjacent construction site.
Extensive testimony and documentation was performed, in order to produce a timeline of verifiable facts.
Drawings and geotechnical information were analyzed for appropriateness of the underpinning design.
On-site photos and daily construction logs were analyzed to determine the work actually performed in the field and the timing of the same.
Extensive comparative analysis was performed to determine the truth of the matter.
Determinations Made
The engineer responsible for the design and inspection of the underpinning was practicing engineering outside of his technical competence.
Both the structural and geotechnical design of the underpinning were insufficient for its intended purpose.
The in-field direction provided by the engineer to the underpinning subcontractor directly led to the catastrophic underpinning failure.
The engineer also falsified records submitted to the municipality, resulting in reporting to the local engineering board for disciplinary action.