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 is pleased to act as host sponsor for the 2017 International Workshop on Micropiles. The workshop is being held March 29 through April 1 in Vancouver, Canada. This is the 13th workshop since 1997, hosted by the International Society for Micropiles, now in alliance with ADSC and DFI. Past workshop locations have included Poland, […]
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 […]
Quanta has launched Quanta Subsurface, Inc., a new organization within the Quanta Services group of companies. Quanta Subsurface brings fully integrated engineering and construction foundation solutions to energy projects throughout North America. Quanta claims it achieves the best value for our customers when foundation design is specific to the individual means and methods of each […]
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 →