Christopher R. Bennett Darejan Kapanadze The World Bank

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Presentation transcript:

Christopher R. Bennett Darejan Kapanadze The World Bank Environmental Management Requirements of Road Projects Christopher R. Bennett Darejan Kapanadze The World Bank

Contractual Requirements

Environment in Specifications

What environmental problems do we find on road projects?

Improper Dumping

No toe wall. Erosion, soil contamination evident. Landfill No toe wall. Erosion, soil contamination evident.

Landslide ready to go

Side Casting Damage

Road Side Dumps Dumping into ravine Destruction of the fragile vegetation on slope Discarded waste material mars a scenic landscape

Waste material dumped indiscriminately Road Side Dumps Waste material dumped indiscriminately

Road Side Dumps

Looks can be deceiving ….. Well completed road with parapet wall But .. behind the wall Excess waste material pushed into ravine

Unauthorized Dump Sites

Waste material being dumped and side casted from the ridge September 14, 2009

Waste material being dumped on the ridge September 16, 2009 – Note increase in the waste dump height and width and impact on vegetation.

Waste Dump Site View from the top

View from top of the dump site No toe wall to contain the material from sliding

Damage to Water Courses

River Dumping Note concrete waste dumped on the bank. River water abstracted through pumped wells to supply drinking water to nearby towns.

Compromised Watercourses Steam affected by side dumping Stream dried by construction activities

No Protection of Natural Water Courses Natural Stream channelized

Damage to Vegetation

Dumping Impact on Shrubs and Fragile Cover

Improper Dumping and Digging

Waste material dumped and spread burying fragile ground cover Improper Dumping Waste material dumped and spread burying fragile ground cover

Improper Cut Slope Stabilization

Cut Slope Erosion

Cut Slope Failure

Improper Dumping Early sign of embankment failure Waste material piled on top of an embankment

Failure to Stabilize Slope

Poor Work Camp and Site Storage Management

Contractor’s Camp - Waste Management

Contractor’s Camp – Sanitary facilities

Improper Fuel Storage

Poor Work Practices

Waste Material Handling & Disposal Asbestos material dumped in a local landfill Uncovered waste material trucked to a landfill

Borrow Area – Uncovered truck

River Bed Gravel Mining

Poor Supervision …. and soil erosion

Restoration Not Done Properly, Difficult Or Impossible

Improper Reclamation Slope needs stabilizing

Excessive Height and Poor Stability

Borrow Areas Not Operated Considering Restoration

Causes

Main Causes Contractors do not Supervision consultants do not Follow the EMP’s requirements Adopt work methods to minimize environmental impact Try to save money Do not view environmental management as important Supervision consultants do not View environmental management as important as civil works Enforce the contract’s requirements (including EMP) The client does not Adequately monitor environmental impact and EMP compliance