High Risk ⚡ Power Plant / Substation  ·  Arizona

Navajo Transmission Project AZ

CRITICAL INFRASTRUCTURE RISK PROFILE  ·  ARIZONA

7 / 10
Risk Score
Facility Type
⚡ Power Plant / Substation
Primary Risk Radius
10
mile zone
Secondary Risk Radius
30
mile zone

// Risk Intelligence

Risk Score7 / 10   High
Facility Type⚡ Power Plant / Substation
Operator / BranchWestern Area Power Administration
Host CountyCoconino County AZ
Nearest CityPepperell MA
Primary Risk Radius10 miles
Secondary Risk Radius30 miles

// Strategic Significance

The Navajo Transmission Project in northern Arizona carries bulk electric power from generating facilities in the Four Corners region to Phoenix Tucson and other Southwest cities. The transmission lines cross hundreds of miles of remote high desert terrain on Navajo Nation land. Wildfire drought and extreme heat create serious transmission corridor vulnerabilities. Remote location makes emergency response extremely challenging.

// Civilian Impact Assessment

Coconino County with 140,000 residents and the broader Southwest grid. The Four Corners transmission corridor is critical for Southwest power supply. Wildfire in remote desert terrain can sever transmission lines. Remote location means slow emergency response. Navajo Nation sovereignty creates unique coordination requirements.

// Evacuation & Shelter Guidance

US-89, US-160, Four Corners region. Coconino County and Navajo Nation Emergency Management coordinate transmission and wildfire protocols.

// Counties Within Risk Zone