"There was a lot of preplanning on this job. You have to have it all right and you have the people trained so that when it starts going, it goes off correctly and there are no problems." With this in mind, Combs suggested that the official surveyor on the project - Luis G. Riancho & Associates, Englewood, Ohio - set control points every 250 ft. "With those control points in that kind of proximity, we have checks and balances on either side of the machine as we go up the runway."
Besides the savings on materials, the system also provided savings in surveying costs. Combs pointed out that the cost of having a licensed surveyor constantly checking elevation and grade behind the cold planer would add up fast.
The entire project was to be completed in 120 days, meaning sometime in August 2011. However, Meyer noted that rainy weather had caused work delays.
Don Talend of Write Results Inc., West Dundee, IL, is a print and e-content developer specializing in covering construction, technology and innovation.