Utilities & Energy
Tower Solar
Boardman, OR
At Avangrid's Tower Solar facility west of Boardman, Oregon, Pacific Foundation installed drilled shafts for Palouse Power with project-specific top-of-shaft alignment and finishing requirements.
Drilled Shafts
Reinforcement Cage Placement
Top-of-Shaft Alignment and Finishing
Field Layout and Verification
Project Overview
Highlights
- Drilled-shaft foundations for utility-scale solar infrastructure
- Project-specific shaft-top alignment and finishing requirements
- Field layout and verification across a large foundation layout
- Construction completed and grid connection achieved in June 2026
Pacific Foundation Scope
Scope of Work
The drilled-shaft work required consistent shaft-top positioning and finish conditions across the site. Pacific coordinated drilling, reinforcing cages, top-of-shaft forms and templates, concrete placement, finishing, and field checks so each completed shaft met the specified interface for follow-on work.
Field Execution
Methods and Site Conditions
Methods
Service
Drilled Shafts
Large-diameter reinforced-concrete foundations for heavy structural loads and deep support.
Method
Reinforcement Cage Placement
Method
Top-of-Shaft Alignment and Finishing
Method
Field Layout and Verification
Site Constraints
Each shaft top had to meet project-specific alignment and finishing requirements across a large, repetitive foundation layout.
Related Capabilities
Services and equipment
Next Step
Request Scope Review
Send Us Your Plans
Send the drawings, specifications, geotechnical report, pile or shaft schedule, and site constraints. Pacific Foundation can review the foundation scope and next steps.