Back in July of 2018 bystanders recorded video of the failure of a combination retaining wall and braced excavation that undermined an apartment building, eventually causing its collapse as well. The incident was in the Beyoglu district, and the police and firefighters were able to cordon off the surrounding area as the failure took several hours to occur.
The Pittsburgh area has 49 active landslides or retaining wall failures in 29 neighborhoods according to a Pittsburgh Public Works Department survey. The estimated cost to fix 24 of those issues effecting public land is $7.4 million, which the City doesn’t have. Story source: Pittsburgh Live by way of Geology.com. (Map by BOB NEWELL/TRIBUNE-REVIEW)