3 December 2015
A cut slope failure on the Eskoriatza to Vitoria motorway in Spain
An interesting landslide occurred on a heavily modified slope on the Eskoriatza – Vitoria motorway in Spain on 27th November 2015. The main failure event was captured on video, and is now on Youtube:
I am impressed with the boldness of the highway authority in allowing one side of the road to remain open whilst this failure occurred.
Very helpfully, Fats Grasas has tweeted a sequence of images from a range of sources of the history of the slope. This appears to be a Google Street View image from 2009:-
Whilst this is a Google Earth image, also from 2009. The slope clearly has expensive treatment, but I am unsure as to what this is exactly.
Then this Google Street View image is from earlier this year:-
The slope has clearly undergone a major failure, part of which has spilled onto the road. A Google Earth image, also from earlier this year, shows this failure in more detail:
It appears that this failed slope was being repaired, with substantial reinforcement and fill. These slope strengthening works appear to have failed to generate the landslide last week.