Crux has been selected by Kleinfelder to participate in a geotechnical investigation on the San Jose to Merced section of the California High-Speed Rail (HSR). The investigation will collect information on ground conditions and feasibility for a transportation tunnel through the Diablo Mountain Range. Utilizing track-mounted equipment, crews have begun deep core drilling and […]
Crux Subsurface, Inc. (Crux) worked with Golden State Bridge, Inc. to provide geotechnical exploration services on Pfeiffer Canyon Bridge in Big Sur, California. Active landslides had caused significant fractures in one of the support columns, and Caltrans determined the damage was too severe to repair. The bridge was demolished earlier this month, and a geotechnical […]
Crux Subsurface, Inc. (Crux) has completed the second phase of work for Hawaiian Electric’s Koolau-Wailupe #1 and #2 46 kV Circuits in Oahu, Hawaii. The second portion of the project involved installing an additional four micropile foundations for tubular steel pole structures. Crux was selected to perform additional services due to difficulty in accessing the foundation sites. […]
Crux Subsurface, Inc. (Crux) will team with sister company Road Bore Corp. to provide EPC foundation services for the replacement of nine structures on Hawaiian Electric Company’s Koolau-Wailupe #1 and #2 46 kV Circuits. Located on the island of Oahu, the project features rugged and steep terrain, and requires most operations to be completed while […]
The City of Spokane selected McMillen Jacobs for construction and preventative services on the Upriver Hydroelectric Dam, located in Spokane, WA. Due to the challenging subsurface materials and initial difficulty in accessing the area, the contractor selected Crux Subsurface to provide specialty geotechnical drilling services. Crux’s scope includes drilling and installing 27 eighteen-foot deep drains to […]
Quanta Services, has been selected by a California-based utility for a large electric power transmission and distribution project located primarily in a national forest area in southern California. Led by Crux Subsurface, Inc., a Quanta Services company, Quanta’s scope of work includes the engineering, procurement and construction of the project, including rebuilding and replacing approximately […]
Learn more about the variety of access methods and innovative core transportation measures employed to complete a coring program following the 117-foot San Vicente Dam Raise in Southern California.
Watch how Crux designed and installed specialty foundations for 500 kV double circuit structures in a protected wetland. Construction relied heavily on helicopters, and value engineering played a major role in completing foundation work on schedule.
CORE COMPETENCY: Crux teamed with the San Diego Country Water Authority to verify design requirements of the San Vicente Dam Raise project; the tallest roller-compacted concrete dam raise in the world. Using both crane and helicopter support, a challenging post-construction coring program was successfully completed. Read the GeoDrilling International article →
Crux’s patented steel cap micropile foundations, implemented on San Diego Gas & Electric’s Sunrise Powerlink Project, were featured as the cover story in the September/October issue of DFI’s Deep Foundations Magazine. Click here to read the article.