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Bluestone Dam DSA Phase 5 – Stilling Basin Borings

Drilling at one of the best white water rafting spots in the world

  • 64

    Year Old Dam

  • 8

    Pq-3 Borings

  • 25-30

    Feet of Water

  • Hinton, West Virginia

    Hinton, West Virginia

Drilling into bedrock through water to evaluate scour potential at this 64-year-old dam

Located on the New River in Hinton, the Bluestone Dam area is one of the best white water rafting spots in the country. The U.S. Army Corps of Engineers (USACE) tasked Stantec with conducting geotechnical drilling at the dam while minimizing impacts to flow levels.

The USACE was concerned about scour potential if the dam’s emergency spillway gates were used, so they needed a team capable of drilling in this challenging and risky environment. Our skid mounted drill rig on a three legged jackup barge gave us a secure platform for drilling. Because it was secured to the face of the dam at anchor points, the platform was not affected by abrupt water level changes and the anchors were also a failsafe for the barge’s legs.

Borings were drilled to about 150 feet through 25 to 30 feet of water. Eight PQ-3 rock core borings were completed with downhole camera work via a borehole image processing system, which helped analyze rock structure and fracture orientation, and explore voids encountered during drilling.

The result? We were able to get the samples USACE needed safely, on schedule and without disrupting the communities that rely on the Bluestone Dam for water every day.

At a Glance

Meet Our Team

Adam Crace, Principal, Geotechnical Engineering

I enjoy waking up every day to a new challenge, whether it’s drilling a geotechnical boring or safely executing an underwater inspection.
Adam Crace Principal, Geotechnical Engineering Read More

Ben Halada, Engineer, Geotechnical Engineering

My passion is to lead geotechnical explorations and accurate instrumentation installation so analyses are always based on solid data.
Ben Halada Engineer, Geotechnical Engineering Read More

Adam Crace

Principal, Geotechnical Engineering

Ben Halada

Engineer, Geotechnical Engineering

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