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Transmission Engineering design requires innovation and creativity. Our team of experienced engineers and designers have expertise in overhead and underground transmission projects with voltages ranging from 34.5kV-345kV.

At Tier 1 we offer a complete range of Transmission engineering and design services for all aspects of line extensions, rebuilds, and major transmission additions to deliver the highest quality products at reasonable costs to our valued clients.

We strive to support all phases of a project cycle from conceptual design studies through final engineering, design and project management services, providing recommendations for transmission lines and related equipment best suited to the development of the transmission system, consistent with economic balance, investment efficiency, and reliability criteria.

Overhead Transmission

Services and Capabilities include:

  • Complete Design Packages

  • Planning

  • Environmental Studies - (Via Partnership)

  • Transmission Line Ratings

  • Transmission Line Reconductoring

  • PLS-CADD Transmission Line Design Software

  • Line Condition Assessment

  • Aerial Line Survey Services - (Via Partnership)

  • Cost Estimating

  • OPGW Upgrades

  • Lattice Tower Analysis

  • Structural and Foundation Design

  • Geotechnical Support ( Soil Boring, Data Collection, etc.) - (Via Partnership)

  • Material and Construction Specifications

  • Material Procurement

  • Contract Administration

  • Permit Assistance


Underground Transmission

Services and Capabilities include:

  • Project Management

  • LiDAR and Topographic Surveys

  • Manhole Inspections

  • Geotechnical Investigations

  • GPR Services and Test Holes

  • Routing Studies and Analysis

  • Conceptual Design

  • Preliminary Engineering and Evaluation

  • Detailed Civil and Electrical Design Packages

  • Grounding Design

  • Cable System Studies

  • Cable Pulling Calculations

  • Ampacity Calculations

  • Electromagnetic Field (EMF) Modeling

  • Environmental Studies (Via Partnership)

  • Material and Construction Specifications

  • Material Procurement

  • Construction Drawings

  • Permitting Support

  • Construction Support

  • As-Built Drawings

  • Specialty Services

  • Article VII Application Support

  • Community Outreach

  • Public Hearings

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