Overland Pass PipelineGeolocation: 38.0809, -97.9118

Terracon served as the geotechnical consultant for the natural gas liquids (NGL) pipeline project, a $450-million, 750-mile long, 14 and 16-inch pipeline, and associated pumping stations. The pipeline originates in Opal, Wyo., and traverses the I-80 corridor across southern Wyoming, then northeastern Colorado and central Kansas to one of the nation's primary NGL supply and storage hubs in Conway, Kan. Terracon provided geotechnical field investigations and laboratory testing for horizontal directional drilling of significant river, stream and roadway crossings, including geotechnical drilling, coring, and interpretation. Borings were drilled to depths ranging from 60 to 120 feet utilizing truck and track-mounted equipment using air-rotary, hollow stem auger, and ODEX techniques.

Wyoming, CO


Associated Office

CheyenneGeolocation: 41.1314, -104.8302
Terracon's Cheyenne office has provided engineering services since 1972. Our professional and field staff routinely work on projects throughout Wyoming. Our office is often a project center providing a full range of materials engineering and testing, geotechnical engineering, and environmental engineering services. The Cheyenne office specializes in Alkali-Silica Reactivity testing (ASR), and the environmental department has expertise in solid waste management.