Progressive Failure in Manaus Port

In November, 2010, there was a progressive failure of a river port in Manaus.  This was not picked up by the media.  I was given access to the security camera's video of the accident in progress.  It appears to have been the classical set up for such a failure: construction activity (construction of a fill, some excavation) to accommodate lower river levels due to an unusual drought in the Amazon (yes, Global Warming is leaving its imprint everywhere) sparked the failure.