Signs of Construction: Clearing and Grubbing of Areas
It is our goal to create a construction effort which is safe and workable for the residents, businesses and institutions in the area. This section is designed to give you an inside look at upcoming construction activities in the I-225 Rail Line project area.
"When clearing and grubbing starts on a project, it means that dirt is moving," stated Kiewit Grading Superintendent Tim Hilgendorf when asked to describe clearing and grubbing activities for our third article in the "Signs of Construction" series.
Typically, the arrival of bulldozers, graders, dump trucks and other earth-moving equipment are what most see as the first signs of construction. The relocation of conflicting utilities and the clearing, excavating, removal and disposal of designated vegetation, old roadway pavement and other objects are all necessary to establish a clean slate for constructing the new I-225 Rail Line.
It's exciting how technology in construction has changed over the past 10 years. In previous articles, we demonstrated the importance of integrating survey data and utility location information into the project design drawings using global position systems (GPS).
Much like GPS applications direct you to the nearest gas station or restaurant, today's bulldozers and grading machines are equipped with GPS linked directly to design drawings in the project office. GPS enables remote communications between field equipment and the office, integrating real-time grade control to the machine's automatic blade settings. This allows operators to adjust for differing conditions and optimize the machine's grading performance.
This advancement in technology saves the contractor time and money over the traditional staking and string line grading practices of the past. The grade control system (GCS) equipment is on the front of this dozer.
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