Great Falls International Airport, Runway and Parallel TaxiwayGeolocation: 47.5002, -111.3008

After providing geotechnical engineering support for design of the projects, NTL, A Terracon Company, provided both Quality Assurance (QA) and Quality Control (QC) materials engineering and testing for reconstruction of Runway 3/21 and Taxiway A at the Great Falls International Airport. The project included evaluation of soils/bedrock used as subgrade and substantial grade raising. Construction control and assurance included earthwork compaction, along with new Portland cement concrete and asphalt paving materials testing on the main runway and connecting taxiways. Due to the compressed runway project schedule, NTL/Terracon provided engineering technicians and laboratory support for extended shifts including night shifts for rigid pavement operations. NTL/Terracon performed approximately 6,000 nuclear field density tests over the 6-month runway construction schedule, and cast flexural strength concrete beams for rigid pavement used in military aircraft arrestor barriers constructed near each end of the runway.

Great Falls, MT


Associated Office

Great FallsGeolocation: 47.4908, -111.3376
The Great Falls office was formed in 1991 as NTL Engineering & Geoscience, Inc., an employee-owned Montana corporation practicing in the geotechnical, construction materials, and environmental engineering and testing fields. NTL joined Terracon in 2008 and officially changed its name to Terracon in 2013. The Great Falls engineering staff have a wide range of geotechnical experience on projects ranging from large industrial facilities to dams, bridges, highways, landslides, rockfalls, retaining structures, defense facilities, and seismic-related studies with geographic project involvement…