Olsson Associates has been involved in numerous projects at the North Platte Regional Airport in North Platte, Nebraska since 2004.
Runway 17/35 was whitetopped with a concrete overlay in 2011. Before the project, the pavement consisted of 70-year-old concrete overlaid with four to 12 inches of asphalt of various ages. In addition, the airport is adjacent to the Platte River where a high water table contributed to frost heave. Olsson evaluated a number of options, including complete reconstruction, asphalt overlay, and whitetopping (concrete overlay). Whitetopping with eight inches of concrete was selected. Dowel bars were installed at every joint to reduce frost heave. The runway intersection with Taxiway B was also reconstructed to match the higher whitetopped elevations.
The estimated final cost is $3.4 million, less than half the cost of complete reconstruction.
Apron and Tiedown Improvements
In another project, Olsson helped the airport achieve changes needed to handle significant traffic from business jets and from nearby, world-class golf courses. The airport’s 12 tiedowns were insufficient. To correct the problem, Olsson proved to the Federal Aviation Administration that 33 tiedowns were needed at the airport. Olsson also reconfigured the apron space to make it more usable.
Construction on the project was completed in two phases to accommodate airport traffic generated by the nearby golf courses.
The project also included whitetopping and expanding the airport’s main aircraft apron. The 26,000-square-yard apron was overlaid with eight inches of unbonded concrete. The asphalt millings were used as a base course for the 21,800-square-yard apron expansion, which consisted of 10-inch concrete. Olsson provided design, bidding, and construction phase services on the $2.3 million project.
Other projects included the following: