Sunday, October 12, 2008

Earthworks, slope erosion and mud flood

Recently, I was not happy with the contractor. I had numerously highlighted to the project manager long-long time ago from the beginning of earthworks to monitor the slopes and take appropriate rectification actions if the slopes found to be not in order.

While doing regular inspection at site, I found one slope was in bad condition. The slope erodes and brings mud flood to nearby operating facilities. You can see in the photo below.



This should not happen if the contractor provides temporary drainage at the top and bottom of the slopes plus with temporary slope protection such as planting close turf on the slopes. If not repaired, this will destabilize the slope structure and will affect road works nearby. The drawings and specifications have details on these but it seems the contractor fails to follow.