COMUS Construction was hired to build 5 settling ponds, each measuring 380-feet long, 160-feet wide, and 20-feet deep, with a 2:1 slope ratio on 4 sides. Excavation required removal of clay and limestone with occasional outcroppings of limestone boulders.
Final grading was performed with a Caterpillar D6 bulldozer. Equipped with a Leica GPS 3D system, the bulldozer was able to grade the ponds to the precise holding capacities required by state and federal environmental regulatory agencies. The need for backfill or compacting of the sloped sides was eliminated, saving about $100,000.
Additional Information:
Leica Geosystems Machine Control Systems
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Brad Hill, President of COMUS Construction, finds his GPS-3D-equipped bulldozer to be more versatile than a motor grader. |
