Precision Core Drilling for Lock & Dam Project

Penhall Company was contracted by Gracon to perform precision core drilling at the Thermalito Afterbay as part of a critical lock and dam project. The job required:

• Deep Core Drilling: 4” diameter cores drilled to a depth of 26’
• Strict Tolerance Compliance: Maintaining a 1/2-inch tolerance over an existing 26’ rod
• Specialized Techniques: Ensuring structural integrity and precision throughout the drilling process
• Careful Planning & Execution: Continuous monitoring to meet exact specifications
• Trusted Industry Expertise: Penhall’s experience and problem-solving ensured a flawless outcome

With no room for error, Penhall delivered high-quality results, allowing the project to progress smoothly and on schedule.