If a parking lot calls for 100 tons of mix and after three passes you've placed 20 tons, you know you are 20% done with the job and you know how much mix to tell the plant you need.

Brannan Sand & Gravel Co., Denver, CO, was the key paving subcontractor in an award-winning park-and-ride parking lot serving the Denver International Airport. Completed between May 2015 and April ...