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Wildfire Mitigation

Wildfire Mitigation:
Protecting Our Rural Communities

Tri-State and our members are all not-for-profits serving nearly one million energy consumers across Colorado, New Mexico, Wyoming and Nebraska covering nearly half of the land mass in these states. Our wildfire mitigation plans exist to safeguard our communities and protect our transmission system, ensuring the delivery of safe, reliable and affordable electricity.

To protect the people and ecosystems we serve, Tri-State has constructed and deployed a multi-layered mitigation plan. Our current approach is broken down into two categories: science-based monitoring and alerts and risk reduction.

Situational Awareness

Preventative situational awareness is the first line of defense for fire mitigation. We’re making data-driven decisions to ensure our resources are being used efficiently and effectively. We're replacing wood structures with steel structures, wrapping the bottom of wood poles with fire-resistant material, and working with employees to limit the types of work done on red flag days (i.e. no chainsaws on dry days, no drones on windy days.)

down arrow Wildfire Mitigation 1-Sheeter

Wildfire Modeling
Custom modeling results of wildfire risk surrounding Tri-State transmission line, used to generate priority for risk reduction.

Tools and Technology

With 24/7 monitoring, risk modeling and daily reporting, Tri-State can be both proactive and reactive. If an anomaly like a fallen tree branch is detected on a line, our operations team is able to see and respond to voltage fluctuations in real time. Or, if an area with high ground fuels is facing prolonged drought conditions, we can put a plan together to mitigate that risk.

Wildfire Risk Modeling

We evaluate thermal hotspots, wind, smoke, drought, wildfire fuel track severe weather events. With this data, we're able to make meaningful decisions when considering methods to lower risk such as veg management plans and operational settings.

Drone Inspections

Putting drones in the hands of our professionally trained and experienced field employees has drastically reduced line inspection time, saved labor costs and decreased hazardous man-hours, all while increasing the level of detailed information we receive in a timely, cost-effective manner.

Daily Reporting

Every day of the year, we conduct geographic analysis and data visualization while integrating active fire data layers to assess and monitor conditions. Data drives operational controls and safe field work practices to reduce the risk of accidental ignition of a wildfire.

Collaboration

Tri-State has a dedicated internal wildfire steering committee and we host an annual wildfire summit. In addition to state and federal organizations, we are also members of the Western Regional Mutual Assistance Agreement and coordinate relief during large

Tri-State employee on the job Play button

Risk Reduction

Tri-State uses our risk modeling and reporting data to plan where we spend time, labor and capital. We harden our system by clearing and controlling our right-of-ways (the area around power lines), making our structures more resistant to fire, and adapting field techniques based on wildfire risk.

Read our vegetation management resource article

System Hardening

System hardening is crucial to maintain grid reliability and minimize disruptions caused by natural disasters, but it is a time, labor and capital-intensive process that requires large-scale programs that can take years of planning and permitting. The work is well worth the returns to safeguard our system and provide reliable, safe and affordable power.

Vegetation Management

We remove “danger trees” – any tree or its parts that may fall on a line because of damage, defect, or disease. We also remove trees or shrubs growing into our line and clear fire fuels beneath it.
Read more about our program .

Specialized Equipment

In addition to All Hazard Alert software, we also dedicate heavy equipment such as helicopters, masticators and bucket trucks to help us navigate difficult terrain and protect the habitat. For example, Tri-State uses helilogging to reduce environmental impact and remove fire fuels.

Field Techniques

Depending on wildfire conditions, we change how our employees work in the field. For example not using drones on windy days or limiting chainsaw use on red flag days. From the desk to the field, Tri-State takes a multi-layered approach to mitigate risk.

Pre-project photo showing trees and shrubs growing into the transmission line right-of-way on Ophir Pass.
Early in my career, I approached this work with the mindset of having to protect the watershed and minimize impacts to wildlife and water quality. Having seen the destruction wildfire brings to the landscape, I now realize that if we don't do this work, not only does the natural world become destabilized, our communities can’t exist.
Curtis Hartenstine, Tri-State Wildfire Mitigation Program Manager
Tri-State uses heavy equipment like this masticator to maintain our ROWs and reduce wildfire fuels that could climb power poles or tree canopies.
 
 
 

Our Members in Action

Across our cooperative, we take fire mitigation seriously. Alongside Tri-State’s efforts, our members conduct vegetation management to protect the homes, businesses and properties of their end consumers.

Wildfire Modeling Play button
San Isabel Electric employees trim trees in Buelah, CO
Helicopter Play button
 
 
 
Vegetation Management: What It Is and Why It Works

Vegetation Management: What It Is and Why It Works

Tri-State’s mission is to provide reliable, affordable and responsible energy to our members and that work includes planning ahead to avoid risks to our transmission system that can cause power outages.
Read more >

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Tri-State Generation and Transmission Association
Office: 303-452-6111
1100 West 116th Avenue
Westminster, CO 80234

Mailing address:
PO Box 33695
Denver, CO 80233-0695

©2025 Tri-State Generation and Transmission Association, Inc. Power supplier to the rural west.

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