Bonner Data Center

Share Bonner Data Center on Facebook Share Bonner Data Center on Twitter Share Bonner Data Center on Linkedin Email Bonner Data Center link


Missoula County is reviewing a proposed data center at 9314 Bonner Mill Road. The property is zoned industrial, and the current review is focused on the proposed industrial use's potential impacts on nearby residential properties.

The proposal involves reusing a portion of the former mill building commonly referred to as the planer building for a high-performance computing (HPC) data center. This means most of the development would occur inside the existing structure, with no major expansion of the building footprint. Interior improvements would include constructing specialized rooms to house computer servers and supporting equipment.

The proposed data center would operate continuously, 24 hours a day, seven days per week, with minimal on-site staffing and relatively limited vehicle traffic associated primarily with maintenance and service visits.

The cooling system consists of a combination of adiabatic and evaporative cooling towers. The evaporative units would use water supplied from the site's existing fire suppression well rather than the domestic well system serving nearby residences. The applicant has indicated that no backup generators are proposed in the event of power outage.

The initial phase of the facility is expected to use approximately 7 megawatts (MW) of electrical power, with the potential to expand over time to utilize up to 29 MW, which is the estimated capacity currently available at the site.

Click here for a downloadable version of this project page.


Project summary

Current step: Special exception review

Application status: Complete application submitted; special exception in review with hearing scheduled for July 1, 2026

Expected hearing: Wednesday, July 1, at 6 p.m.

  • The consolidated land use board hearing is currently scheduled for Wednesday, July 1, at 6 p.m. The meeting will take place in person in the Sophie Moiese Room of the Missoula County Courthouse, 200 W. Broadway, and virtually via Microsoft Teams. The agenda and information on how to join the meeting virtually will be available online prior to the meeting.
  • The project will be subject to review by the Missoula County Consolidated Land Use Board, not the county commissioners. While the land use board at times only has authority to make recommendations to the commissioners, the board does have final decision-making authority in some cases, including zoning variances, zoning special exceptions and administrative action appeals.


What is being reviewed in this project proposal?

The Special Exception review is focused on whether the proposed industrial use, including its equipment and operations, would be compatible with nearby residential properties and whether potential impacts can be avoided or mitigated.


Project review timeline

March 2026: Initial Contact

  • Krambu and Missoula County Planning first discussed the proposed data center project.

March 25, 2026: First Special Exception Application

  • The applicant submitted the first Special Exception application. County staff determined that more information was needed before public review could begin.

April 28, 2026: Second Special Exception Application - Current

  • The applicant submitted additional materials. County staff continued reviewing the application and identified remaining information needed for completeness.

May 11, 2026: Third Application for Special Exception (deemed complete)

  • The applicant has submitted a complete application. A hearing is scheduled for July 1, 2026.

Late May/Early June: Public Notice Period

  • The County will mail notices to property owners within 500 feet, publish a legal notice, and post notices near the property.

July 1, 2026: Land Use Board Hearing

  • The Land Use Board is expected to consider the Special Exception request.

July 2026 or Later: Possible Permit Review

  • If approved, Krambu may then apply for a Zoning Compliance Permit and other required permits.


What topics may be considered in this special exception?

  • Traffic, access, and parking
  • Noise and vibration
  • Outdoor lighting
  • Visual impacts and neighborhood character
  • Utilities and site services
  • Other relevant circumstances related to impacts on adjacent residential properties


How to participate?

Community members are encouraged to stay informed and provide public comment. Comments are most helpful when they address the topics the Land Use Board may consider during Special Exception review, especially potential impacts to nearby residential properties.

Follow this project page if you want be emailed when there are updates with this project.


Missoula County is reviewing a proposed data center at 9314 Bonner Mill Road. The property is zoned industrial, and the current review is focused on the proposed industrial use's potential impacts on nearby residential properties.

The proposal involves reusing a portion of the former mill building commonly referred to as the planer building for a high-performance computing (HPC) data center. This means most of the development would occur inside the existing structure, with no major expansion of the building footprint. Interior improvements would include constructing specialized rooms to house computer servers and supporting equipment.

The proposed data center would operate continuously, 24 hours a day, seven days per week, with minimal on-site staffing and relatively limited vehicle traffic associated primarily with maintenance and service visits.

The cooling system consists of a combination of adiabatic and evaporative cooling towers. The evaporative units would use water supplied from the site's existing fire suppression well rather than the domestic well system serving nearby residences. The applicant has indicated that no backup generators are proposed in the event of power outage.

The initial phase of the facility is expected to use approximately 7 megawatts (MW) of electrical power, with the potential to expand over time to utilize up to 29 MW, which is the estimated capacity currently available at the site.

Click here for a downloadable version of this project page.


Project summary

Current step: Special exception review

Application status: Complete application submitted; special exception in review with hearing scheduled for July 1, 2026

Expected hearing: Wednesday, July 1, at 6 p.m.

  • The consolidated land use board hearing is currently scheduled for Wednesday, July 1, at 6 p.m. The meeting will take place in person in the Sophie Moiese Room of the Missoula County Courthouse, 200 W. Broadway, and virtually via Microsoft Teams. The agenda and information on how to join the meeting virtually will be available online prior to the meeting.
  • The project will be subject to review by the Missoula County Consolidated Land Use Board, not the county commissioners. While the land use board at times only has authority to make recommendations to the commissioners, the board does have final decision-making authority in some cases, including zoning variances, zoning special exceptions and administrative action appeals.


What is being reviewed in this project proposal?

The Special Exception review is focused on whether the proposed industrial use, including its equipment and operations, would be compatible with nearby residential properties and whether potential impacts can be avoided or mitigated.


Project review timeline

March 2026: Initial Contact

  • Krambu and Missoula County Planning first discussed the proposed data center project.

March 25, 2026: First Special Exception Application

  • The applicant submitted the first Special Exception application. County staff determined that more information was needed before public review could begin.

April 28, 2026: Second Special Exception Application - Current

  • The applicant submitted additional materials. County staff continued reviewing the application and identified remaining information needed for completeness.

May 11, 2026: Third Application for Special Exception (deemed complete)

  • The applicant has submitted a complete application. A hearing is scheduled for July 1, 2026.

Late May/Early June: Public Notice Period

  • The County will mail notices to property owners within 500 feet, publish a legal notice, and post notices near the property.

July 1, 2026: Land Use Board Hearing

  • The Land Use Board is expected to consider the Special Exception request.

July 2026 or Later: Possible Permit Review

  • If approved, Krambu may then apply for a Zoning Compliance Permit and other required permits.


What topics may be considered in this special exception?

  • Traffic, access, and parking
  • Noise and vibration
  • Outdoor lighting
  • Visual impacts and neighborhood character
  • Utilities and site services
  • Other relevant circumstances related to impacts on adjacent residential properties


How to participate?

Community members are encouraged to stay informed and provide public comment. Comments are most helpful when they address the topics the Land Use Board may consider during Special Exception review, especially potential impacts to nearby residential properties.

Follow this project page if you want be emailed when there are updates with this project.

Let us know what you think by logging in or creating an account and submitting your comment below.

Staff do not respond to comments submitted here. If you have a question you would like answered, submit it on the Questions tab.

You need to be signed in to comment in this Guest Book. Click here to Sign In or Register to get involved

The environmental negative impacts outweigh the positives. Missoula and Montana’s economies thrive on our natural resources. They will be at risk if this AI data center is built. Please refer to other examples of AI data centers being built in communities. They will cause more harm than good.

Maria Kouidi About 2 months ago

There are zero benefits to this project that outweigh the danger and damage to the environment, energy costs for citizens, noise disruption in the valley, and the fact that there is no way to responsibly dispose of e-waste. This is a horrible, horrible project and should not be approved.

erininmissoula About 2 months ago

In The Dalles Oregon AI centers were sold as environmental and would create jobs. THEY LIED. All over the country AI centers have been sold like this to the local community. They LIED. It ruined the water shes it ruined the community and the jobs were filled by people from out of town and state. THEY LIE. They manipulate the emotion of the local community and then you suffer. Any place these centers have been built the community people water electricity and farms have been ruined. It heats up the water and kills the fish and when the water levels drop as they do we know the data center will be prioritized leaving the residents to find ways to get potable water. Some areas have reported brown tap water and unsafe to even bathe in. Montana deserves to stay pristine. We are the best water shed for the country outside of Michigan. We can not allow these centers to ruin our lives. The company becomes so powerful you cant fight them and they all start with this... we are safe for the environment and just a tiny little thing. As their water usage increases as demand is on the plant the people are left out in the cold. The slow creep to 15 minute cities. Fight this. Push back. Send them packing. They will ruin the community read the archives of the story of The Dalles Oregon data centers. Not the current cover up news but the Archives.

MontanaEyes About 2 months ago

Get out of here now! Do you want water, wildlife, and peace? Or do you want no water, accelerated death drive of wildlife and planet, and loud psychosis inducing noise? AI is an evil that was built off of theft and is being weaponized against those who unwittingly created and have no need for it. Vampire technology that sucks the life from the real world in order to create an artificial one. No no no no no no no!!!!

MTMike About 2 months ago

This seems like a ludicrous idea to even consider this idea. Yes the area could use some industry but destroying our precious ecosystem in that area and disrupting the Blackfoot River seems like a huge mistake. Please don’t let this happen!!!

Amb033333 About 2 months ago

Absolutely not. No other community is seeing any positive benefits from these data centers. Our natural resources and environment are too precious to gamble on a corporation doing the right thing. Please deny this project!

JoS About 2 months ago

I have a lot of concerns about this project and the impacts on the residents and environment. Montana has a long history of environmental damage at the hands of a few wealthy people trying to get wealthier. At a time when regulations and simple data collection is being defunded and undermined, how are working people supposed to trust this development to be a responsible neighbor? I'm hoping the council demands receipts and proceeds with a healthy dose of skepticism.

MontanaGal About 2 months ago

This would be truly disastrous for the community in so many ways. There is no way this should even be considered.

Keaton Durkin About 2 months ago

No, this data center will not benefit our community in any way.

Missoula resident About 2 months ago

There is a clear trend of exploitative industry in Montana. This Data Center is no exception. Allowing this project to go forward would be in direct contrast to residents desire and public benefit. Please send a clear message that predatory businesses are not welcome in Missoula County.

Mary Giuliani About 2 months ago

I am not advocating for this project. It will take more from the community than it provides. That said, I can answer some questions :

1. It should not impact the wastewater system as the water used is closed loop.

2. Further they capture most (90%?) of the heat that is generated for reuse. The idea being heating greenhouses or aquaponics .

From a environmental perspective, considering what these two companies are doing to bring the bitcoining mining/ai data center to Bonner is not terrible.

From a business perspective it will not help Bonner. This includes income generation for local residents.

ChronicallyJD About 2 months ago

No! No! No! Other than the few who profit from this, the whole community suffers. The environment suffers. And we all know that regulations and rules don't mean anything to those in power. Those running AI are the new copper kings. We in MT know where that got us the first time. We don't need more AI. We need to keep this planet human-powered, respecting it and one another. No profits over people. No profits over our MT way of life.

JCat About 2 months ago

I worry that the water use and disposal has not been addressed. How much water will be consumed? How will it strain our wastewater treatment facilities? How will it impact future development plans?

Another factor is noise…noise in a mountain valley. We need an absolute guarantee that the noise this center will make will not negatively impact our community for the years to come. Cumulative stress from constant noise (and light, etc) is a health hazard, impacting sleep and everyday life.

I appreciate that the center would use all renewable energy sources. Does that mean they’d cover all development and future payments associated with the renewable project?

Sadly, in our current system, recycling all e-waste is not reality. How will they guarantee all e-waste actually gets recycled? I do not want the waste just sitting around somewhere. That’s not recycling, that’s disposal.

Thank you for your consideration.

RAK About 2 months ago

This is a horrible idea. I strongly disapprove of a data center. Do not allow this to be built. There is no benefit.

Reed2 About 2 months ago

There is no upside to this project that is worth the costs it will have on the community. Please do not proceed.

zalherwitz About 2 months ago

This is against our state’s constitutional right to a clean and healthful environment. AI bubble is about to burst, and even if it wasn’t, it’s a morally corrupt and useless endeavor. If this project proceeds, it will be against the will of the people who live here.

steelydanfan About 2 months ago

I'm deeply concerned about the prospect of an AI data center being built within Missoula county for a variety of reasons. This technology is too new to fully understand its impacts. I don't believe that any of the regulations proposed would suffice to reduce or eliminate the risk. The economic benefit to our community seems very minimal. There has been report after report of the negative impacts of data centers that have been hastily constructed throughout the country that are just now coming to light. Any potential benefit for this specific instruction is far outweighed by the known or unknown risks. I'm not a properly law expert but it appears that there is an avenue too legitimately deny the request for a special exception here. I was strongly urge the Consolidated Land Board to deny this proposal.

Tessa About 2 months ago

As a Missoula resident, I am FIRMLY against this project.

Ashepard97! About 2 months ago

I'm worried about noise pollution. I've read that other data centers generate noise that impacts a 2 mile radius.

Cody About 2 months ago

I am quite concerned about any data center coming into Montana due to their high use of water. The jobs promised are temporary and what will happen when they are no longer needed because technology has advanced to the point of no longer requiring huge quantities of space? We'll be left with rusting out warehouses and used up resources. I fear that our utilities will sky rocket as well. Please do not let this project proceed.

Margaret About 2 months ago
Page last updated: 12 May 2026, 01:41 PM