"We also had QA/QC on the project monitoring density and ride smoothness requirements," he notes.
With four paving crews from Knife River spread out over the construction zones, Larson says the truck traffic moving in and out project to keep the crews supplied with asphalt being hauled from the contractor's Coffee Lake plant south of Portland was another example of how organization and communication played such a crucial role in executing the work required during the closures.
"There were belly-dumps coming in to supply the mainline paving operations and regular dump trucks to supply ramp paving operations, and everyone needed to know where to go, and get there when they were needed in order to keep this project on schedule," Larson states. "In a conventional approach to paving this type of project during nighttime closures only, it would have taken months to do what we did in four weekends.
"We (ODOT) learned that you can shut down a direction of traffic to complete the work a lot quicker," Larson adds. "This was a very cost-effective way for ODOT, the contractors and the traveling public (taxpayers) to address a much-needed improvement to a road we all depend on."