Utility Services & Power:
Electric Transmission Overhead and Underground Lines

Energizing your vision from concept to completion with aesthetic reliability.

Transmission Engineering Design

We are a full-service, national engineering firm with in-house expertise in all disciplines applicable to power transmission engineering design. Our civil and structural engineers plan pole and tower designs as well as foundations and tower modifications. We also evaluate distribution underbuild, OPGW, SCADA, and equipment attachments. Our electrical engineering team will evaluate to make sure proper conductor loading criteria, EMF compliance, and fire-hardening equipment are appropriately utilized when applicable.

Transmission Underground Engineering Design

NV5 has years of experience planning, permitting, and designing underground transmission projects though 500 kV in a variety of urban, suburban, and mountainous terrain. We work with clients through the entire process to ensure constructability, reduce environmental impacts, complement local aesthetics, and provide peace of mind that the project will meet the needs of the client, local agencies, and the public.


Transmission Engineering Design

  • Experience from 12kV to 765kV
  • PLS-CADD Overhead Line Design
  • Existing Structure Analysis & Remediation
  • Reconductor, Recabling, or Re-rating of Existing Transmission Lines
  • Alignment Studies & Route Cost Comparisons
  • Cable Ampacity, EMF, & Pulling Tension Studies

Transmission Underground Engineering Design

  • Route & Alignment Studies
  • Route Cost Studies & Comparisons
  • Local & Federal Agency Coordination & Processing
  • Permitting & Right of Way
  • Cable System Ampacity Studies
  • Duct Bank Optimization


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