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Pressure Relief Wells Installed at Upriver Dam

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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 alleviate groundwater pressure on the dam apron. To date, Crux has completed 14 of the 27 drains, and expects to complete the second phase later this year.

UpRiverDam Graphic

Visit City of Spokane’s website to learn more about the Upriver Hydroelectric Dam →

Posted in Crux News, Project News | Tagged

Quanta Services Selected For Large Electric Transmission & Distribution Project In Southern California

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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 145 miles of 12 and 69 kilovolt underground and overhead electric power infrastructure.

Engineering and related services for the project have begun, and completion is anticipated in late 2019.

Quanta Services Selected For Large Electric Transmission & Distribution Project In Southern CaliforniaRead Release → 

Quanta Announces New Subsurface Company

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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 contractor.  Read Release  

Posted in Press Releases |

Video Job Story: Post Construction Coring Challenged by Access Limitations

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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.

Posted in Crux News, Project News |

Introducing Video Job Stories

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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.

Post-Construction Coring at San Vicente Dam

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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.

san vicente2Read the GeoDrilling International article  

Posted in Articles, Project News |

DFI Appoints New Technical Committee Chairs

Crux’s Steve Davidow, P.E., S.E. has been appointed chair of the ADSC-DFI Joint Micropile Committee along with ADSC representative Greg Sullivan, P.E. of Subsurface Construction Company LLC.

DFI
Read the release 

Crux accepts awards at DFI Annual Conference

DFICrux was pleased to accept both the 2014 Outstanding Project Award and the C. William Bermingham Innovation Award at the DFI 39th Annual Conference on Deep Foundations last week in Atlanta, GA.  The Outstanding Project Award was presented for Crux’s foundation work on San Diego Gas & Electric’s Sunrise Powerlink Project, and the Bermingham Innovation Award was presented for the introduction of Crux’s patented steel micropile cap design on the same project.  More detailed information can be found on DFI’s website.

Posted in Crux News | Tagged ,

Sunrise Powerlink: An Innovation in Foundation Design

Sunrise Powerlink Foundations 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.

Troy Meadows Foundations Featured in T&D World

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Micropile Foundations in Wetland Habitat

PSE&G Traverses New Jersey Wetland

John Ribardo, Public Service Electric & Gas, and Steve Davidow, Crux Subsurface | T&D World Magazine

A steadily increasing demand for power has introduced a number of unique design and construction challenges within the overhead transmission sector, many of them environmental. The routing and siting process for transmission line construction is often extensive and time-consuming, requiring close coordination with numerous regulatory agencies. Although utilities strive to use existing rights-of-way (ROW), and are often successful, extensive alternate route analyses are typically required prior to gaining approval.

Environmental analysis of new routes or multiple routes can add significant time to the permitting process. Once routing and permitting have been approved, utilities and their consultants and contractors are faced with the challenge of constructing the alignment within the limitations set forth in each of the permits.

 
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Technical Papers

Access Crux's archive of geotechnical drilling knowledge & experience.

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Crux Updates

Receive email updates about upcoming projects and other Crux news.

Learn More