Bonner Data Center

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Update 6/12/2026:

Missoula County planning staff have reviewed another application from Krambu and deemed it insufficient. The latest application and letter from the County are available under the Documents tab to the right. Krambu will need to submit a complete application before a hearing with the Missoula Consolidated Land Use Board can be scheduled.

The Bonner Data Center project developer is continuing to finalize materials for presentation to the Missoula County Consolidated Land Use Board (MCCLUB). At this time, the public hearing schedule is to be determined, pending receipt of a complete application.

You can sign up to follow this project at the right-hand side on this page. When the new date is determined for the MCCLUB public hearing, project followers and commenters will receive an email.

This project will be reviewed by the Missoula County Consolidated Land Use Board (MCCLUB). This land use board holds their public hearing meetings on the first Wednesday of the month at 6 p.m. in the Sophie Moiese room of the Missoula County Courthouse. There may occasionally be a second meeting in the month, which will usually be the third Wednesday. There will be prior notice. These meetings are always open to the public.

The meeting agenda and related documents will be published on the Consolidated Land Use Board page




Project Overview

Missoula County is reviewing a proposed data center at 9314 Bonner Miller Road as a Special Exception described in Section 11.6.D. of the Missoula County Zoning Regulations. The property is zoned for heavy industrial use.

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 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.


Project summary

Current step: Missoula County has requested more information

Application status: Fifth application submitted; Missoula County has requested more information.

Expected hearing: Postponed until further notice

  • This project will be reviewed by the Missoula County Consolidated Land Use Board (MCCLUB). This land use board holds their public hearing meetings on the first Wednesday of the month at 6 p.m. in the Sophie Moiese room of the Missoula County Courthouse. There may occasionally be a second meeting in the month, which will usually be the third Wednesday. There will be prior notice. These meetings are always open to the public.

What is being reviewed in this project proposal?

The Special Exception review is required when the use, because of location, scale, required infrastructure or other potential impacts, requires a special degree of consideration and control to ensure such uses are consistent and compatible with the overall community character and whether potential impacts can be avoided or mitigated.

This page has been updated to reflect revised staff analysis of the scope of review. The Missoula County Consolidated Land Use Board (MCCLUB) must not approve a special exception unless and until they find the project application demonstrates all of the following:

  1. The proposed use or development will be compatible with and will not substantially injure the value of adjoining property.

  1. The proposed use preserves the character of the district, and the property is suitable for the proposed use (e.g. can meet the bulk and dimensional standards without requiring a variance).

  1. The proposed use promotes the purpose and intent of the TIF Special District, where appropriate.

  1. Substitute or additional design standards will preserve and protect the area’s architectural and aesthetic qualities.

  1. In reviewing a Special Exception application MCCLUB shall give due consideration to the following:

a) Access, traffic, parking demand, non-motorized transportation and onsite vehicle circulation

b) Dedication and development of streets, rights of way, and public use areas, such as adjoining sidewalks

c) Impacts on or of public and private utilities or services

d) Proposed siting of any new structures necessary to accommodate the use and their relationship to adjoining and surrounding properties

e) Recreation opportunities and open lands available to serve the use

f) Natural resource protections

g) Landscaping and screening requirements

h) Signage and street lighting

i) Noise, vibration, outdoor lighting and other on and offsite impacts from the use

j) Frequency of use and hours of operation

k) Area of land necessary and adequacy of the site to accommodate the use and meet the intent of the district and character of the neighborhood

l) How the proposed use addresses the purpose of the TIF Special District intended to attract, retain, grow and develop secondary value-adding industries

m) Any other unique or relevant circumstances related to the property.

The burden to demonstrate compliance with these criteria falls to the applicant, not the County or MCCLUB.

Reasonable and appropriate conditions may be required to ensure that any potentially injurious effect of the Special Exception on adjoining properties, the character of the neighborhood, the purpose and intent of the TIF Special District, or the health, safety and general welfare of the community will be minimized. Conditions much be based on the criteria for review.

Zoning compliance permit

If a special exception is approved, the developers must apply for a zoning compliance permit. The permit application must demonstrate compliance with the County's data center zoning regulations, including requirements for new renewable energy and e-waste recycling. Zoning compliance permits are subject to administrative review and do not go through public hearing process.


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 - deemed incomplete

  • 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 - deemed incomplete

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

May 11, 2026: Third Special Exception Application - deemed incomplete

  • The applicant submitted a special exception application. Applicant has notified the county that a new application packet will be made available.

June 1, 2026: Fifth Special Exception Application - deemed incomplete

  • The applicant submitted a special exception application. County staff determined that more information was needed before public review could begin.

Date to be determined based on application completeness: Public Notice Period

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

Date to be determined based on application completeness: Consolidated Land Use Board Hearing

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

Date to be determined based on application completeness: Possible Permit Review

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

How can I 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.

Update 6/12/2026:

Missoula County planning staff have reviewed another application from Krambu and deemed it insufficient. The latest application and letter from the County are available under the Documents tab to the right. Krambu will need to submit a complete application before a hearing with the Missoula Consolidated Land Use Board can be scheduled.

The Bonner Data Center project developer is continuing to finalize materials for presentation to the Missoula County Consolidated Land Use Board (MCCLUB). At this time, the public hearing schedule is to be determined, pending receipt of a complete application.

You can sign up to follow this project at the right-hand side on this page. When the new date is determined for the MCCLUB public hearing, project followers and commenters will receive an email.

This project will be reviewed by the Missoula County Consolidated Land Use Board (MCCLUB). This land use board holds their public hearing meetings on the first Wednesday of the month at 6 p.m. in the Sophie Moiese room of the Missoula County Courthouse. There may occasionally be a second meeting in the month, which will usually be the third Wednesday. There will be prior notice. These meetings are always open to the public.

The meeting agenda and related documents will be published on the Consolidated Land Use Board page




Project Overview

Missoula County is reviewing a proposed data center at 9314 Bonner Miller Road as a Special Exception described in Section 11.6.D. of the Missoula County Zoning Regulations. The property is zoned for heavy industrial use.

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 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.


Project summary

Current step: Missoula County has requested more information

Application status: Fifth application submitted; Missoula County has requested more information.

Expected hearing: Postponed until further notice

  • This project will be reviewed by the Missoula County Consolidated Land Use Board (MCCLUB). This land use board holds their public hearing meetings on the first Wednesday of the month at 6 p.m. in the Sophie Moiese room of the Missoula County Courthouse. There may occasionally be a second meeting in the month, which will usually be the third Wednesday. There will be prior notice. These meetings are always open to the public.

What is being reviewed in this project proposal?

The Special Exception review is required when the use, because of location, scale, required infrastructure or other potential impacts, requires a special degree of consideration and control to ensure such uses are consistent and compatible with the overall community character and whether potential impacts can be avoided or mitigated.

This page has been updated to reflect revised staff analysis of the scope of review. The Missoula County Consolidated Land Use Board (MCCLUB) must not approve a special exception unless and until they find the project application demonstrates all of the following:

  1. The proposed use or development will be compatible with and will not substantially injure the value of adjoining property.

  1. The proposed use preserves the character of the district, and the property is suitable for the proposed use (e.g. can meet the bulk and dimensional standards without requiring a variance).

  1. The proposed use promotes the purpose and intent of the TIF Special District, where appropriate.

  1. Substitute or additional design standards will preserve and protect the area’s architectural and aesthetic qualities.

  1. In reviewing a Special Exception application MCCLUB shall give due consideration to the following:

a) Access, traffic, parking demand, non-motorized transportation and onsite vehicle circulation

b) Dedication and development of streets, rights of way, and public use areas, such as adjoining sidewalks

c) Impacts on or of public and private utilities or services

d) Proposed siting of any new structures necessary to accommodate the use and their relationship to adjoining and surrounding properties

e) Recreation opportunities and open lands available to serve the use

f) Natural resource protections

g) Landscaping and screening requirements

h) Signage and street lighting

i) Noise, vibration, outdoor lighting and other on and offsite impacts from the use

j) Frequency of use and hours of operation

k) Area of land necessary and adequacy of the site to accommodate the use and meet the intent of the district and character of the neighborhood

l) How the proposed use addresses the purpose of the TIF Special District intended to attract, retain, grow and develop secondary value-adding industries

m) Any other unique or relevant circumstances related to the property.

The burden to demonstrate compliance with these criteria falls to the applicant, not the County or MCCLUB.

Reasonable and appropriate conditions may be required to ensure that any potentially injurious effect of the Special Exception on adjoining properties, the character of the neighborhood, the purpose and intent of the TIF Special District, or the health, safety and general welfare of the community will be minimized. Conditions much be based on the criteria for review.

Zoning compliance permit

If a special exception is approved, the developers must apply for a zoning compliance permit. The permit application must demonstrate compliance with the County's data center zoning regulations, including requirements for new renewable energy and e-waste recycling. Zoning compliance permits are subject to administrative review and do not go through public hearing process.


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 - deemed incomplete

  • 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 - deemed incomplete

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

May 11, 2026: Third Special Exception Application - deemed incomplete

  • The applicant submitted a special exception application. Applicant has notified the county that a new application packet will be made available.

June 1, 2026: Fifth Special Exception Application - deemed incomplete

  • The applicant submitted a special exception application. County staff determined that more information was needed before public review could begin.

Date to be determined based on application completeness: Public Notice Period

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

Date to be determined based on application completeness: Consolidated Land Use Board Hearing

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

Date to be determined based on application completeness: Possible Permit Review

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

How can I 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.

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This Data center is a bad idea. It does not serve the community. It will use gobs of water destroying the environment, gobs of electricity competing with local residents and creating more pollution. It will employ very few people. It will be noisy for local residents. Training 1 AI model creates as much carbon pollution as 5 lifetimes of a car. One of the creators of this says they won’t expand to full capacity? BS! When has an investor or anyone evolved in this kind of venture stopped short of taking it as far as they can. Do not let this happen!

Jerrz 3 months ago

Absolutely not. Do
Not not let this in!! We are losing our water table every year. This will destroy the river and Bonner. This area is too special to sell is u
It and us out!!

Trina 3 months ago

Have we learned nothing from the Berkeley Pit??? Montana is already rife with superfund sites and environmental disasters. And for what? So the rich can get richer while everyone else suffers? This will NOT benefit our community, it will only destroy it. It is unbelievable that this is even being considered!

Caitlin T 3 months ago

100% oppose this proposal. The location for one is in a residential area which would not be okay for those who live there. The low grade constant hum would drive anyone crazy. The possible environmental/wildlife effects that could come from the “coolants” is unknown and probably not positive. This does not benefit the community in any way. If this is approved, this just opens the doors for more money hungry companies to come and take all of our resources this great state has to offer. It’s a dangerous line to walk and I really hope Missoula County has some common sense.

Commonsense 3 months ago

AI data centers lower the water table and discharge heavy metals in their wastewater. Many citizens around the country have found that they can't even use their groundwater after datacenters were built nearby as they lower the water table and then leech heavy metals from the cooling towers before discharging that wastewater back into the ground. That wastewater WILL make its way into Bonner resident's wells, as well as the Blackfoot river - one of the lower 48's MOST PRISTINE waterways. Missoula has almost no industry besides tourism, and now this data center wants to put one of the main attractions of our region in danger just to make a buck by hoarding data.

It is entirely possible to create a truly CLOSED loop cooling system using glycol chillers and heat exchangers instead of water cooling towers and fans. Have this company put up the money to install solar and glycol to alleviate the unnessecary draw that will ultimately negatively affect our region and the generations to follow.

Peter Landman 3 months ago

I oppose this proposal in its current form, and I think the community deserves far more information before any approval is considered. Sounds like something that will benefit very few and affect very many.

Too much is still unknown. Krambu has no confirmed client, no confirmed power source, and the size of the facility depends entirely on who that client turns out to be. Most critically, their water-cooling system has never been deployed at scale. Do we want Bonner to be the testing site for this?

The job creation argument doesn't hold up to scrutiny. Krambu's own figures are that roughly three employees per 2 megawatts, which is only a handful of permanent positions for a facility with a stated vision of 100 megawatts. Would these be local employees or people who already work for Krambu?

With Krambu based in Idaho, and so few employees, it seems logical that any revenue generated will not actually stay in this community.

The power consumption concern is real. The Hyperblock cryptocurrency operation consumed a third of Missoula's daily power before going bankrupt and leaving. We should be skeptical of assurances that this will be categorically different.

And residents living across the street from this facility deserve honest answers about noise and health. Not guesses. A proven track-record. Communities near operating data centers frequently report health concerns tied to persistent background noise and vibration including infrasound. These are not hypothetical fears.

Communities that have made that same calculation with data centers have frequently ended up with the burdens and not the benefits.

A truly beneficial tenant would come in with specifics, a track record, and a community benefits agreement. Krambu has none of those things yet.

I urge the Land Use Board to require complete, specific answers to these questions before this project moves any further forward.

ConcernedResident 3 months ago

I vehemently oppose the data center project. There are countless examples of similar projects in other communities creating environmental hazards and inflating costs for residents while contributing nothing in return. Data centers have been shown to create hazardous noise pollution which will at best create a nuisance for nearby residents and students, and at worst pose unknown health risks. The proposed location is near the Blackfoot River, which is one of our greatest and most fragile community assets. A datacenter in this location poses risks to wildlife and the enjoyment of recreationists. Finally, datacenters are power-hungry and will strain our grid, driving up costs for Missoula county residents. The supposed economic benefits this project will bring will be negligible because AI datacenters simply do not create a significant number of new job opportunities. Don't let this AI company profit at our expense!

bigflatgopher 3 months ago

AI data centers provide no benefit to the community. Just say no.

PeggyC 3 months ago

I strongly oppose the approval of this data center project. It is a strain on resources and does not bring in any significant benefits to the local community. The long term effects of these centers on natural resources, wildlife, and public health are under researched and potentially pose significant harm. The potential and known risks wildly outweigh any posed benefit. Keep data centers out of Bonner.

savs 3 months ago

I find it pretty incredulous that this company is taking QA's and wants public buy in when they can't even offer specifics. Is Krambu/this AI company aware that they will need to acquire water rights to use any water from a nearby source? How do we know they have done their full due diligence to understand the true feasibility of this center? I seriously doubt it and frankly it seems like they know it is not feasible in these ways and don't want to confirm. Until they can provide quantitative calculations for prospective water use and other factors, there is simply no way to support this.

midtownmussels 3 months ago

The existing tenant gave notice they are moving out. The mill manager said that he has contacted numerous companies and industries looking for a replacement manufacturer. The wood products industry is dead. Our local timber is not suitable for dimensional lumber. The paper industry is way down and not seeking chips (beetle kill). Manufacturers want to locate in areas of much higher population, in areas that are close to customers transportation costs are significant. Montana is not close to anywhere. Wages in Montana are not enough to meet the local housing costs and the cost of living. This current date center interest is the only interest in this 240,000 sq. ft. space. Jeannie Dixon said that this use fits the zoning. The Tenant prospect answered the questions about water usage and stated that they use a closed loop system. In addition, the mill does not have a discharge permit. No wastewater would be discharged into the Blackfoot. E waste will be disposed of subject to Missoula County regulation. The electricity used will be replaced per code as well. The tenant will be hiring many local businesses and citizens to construct the data center. New skilled long-term jobs will be created as well. The cost to build a data center is significant and will be subject to property tax and business equipment tax to the benefit of Missoula County. A vacant building does not offer any benefit and would negatively impact the mill site and the other tenants there. This is an opportunity that should be positively considered.

MLJ 3 months ago

The existing Tenant gave notice, they are moving out. The mill manager stated that he reached put to many industries, but has not received any interest in this space except for this data center. The problem for manufacturing is that , we do not have high enough wage levels to meet the cost of housing and the cost of living. A vacant 240,000 sq ft does not do the community any good. That space has to be leased in order for the mill site to be viable. The data center company answered questions about water (a closed loop system, no discharge), noise (below Missoula County standards), e waste, etc. The county said that the property is zoned for a data center. They will replace the energy they use. Missoula county stands to recieve a substantial amount in property tax and business equpment tax, which will help the community. I think we should support this business.

MLJ 3 months ago

While this may seem like a solution for issues in our community, this is at best a short term band-aid and will do nothing to address the root of those problems. The long term effects of this data center will be disastrous, other communities are already seeing the negative impacts on the environment and the health and wellbeing of the community and I cannot understand why we would choose to put one in our home knowing that.

Verne 3 months ago

I disagree with this project and think there is much more meaningful way to create jobs for our community!

Rattlesnake321 3 months ago

Do not build your environmental hacksaw in our town. Your useless product does nothing but ruin lives. Do not destroy our water and wildlife for money you do not need. You will make living in Bonner unbearable while destroying a beautiful environment.

si1223 3 months ago

Stay away from Montana. We value our wildlife and being able to float the rivers and lakes. We do not want you here.

Mpreston 3 months ago

A datacenter this close to a residential neighborhood is absolutely unacceptable. There are serious health risks to our community members. A datacenter also won’t bring in more than a handful of jobs as the expense of raising our infrastructure costs. We don’t want it!

ABrooks 3 months ago

As a Bonner resident, and Mama, I do not want this across the street from my house. Sound waves we cannot hear still have an effect on the body. If it's not supposed to be in a residential area why would they put it directly across the street from a historical residential neighborhood? It just doesn't make sense. Keep it somewhere that people dont live and wont be effected.

BonnerMama 3 months ago

This is absolutely unacceptable. Datacenters cannot be located this close to residential neighborhoods. The high amount of noise pollution will cause the citizens in the surrounding areas to suffer from chronic illness. It will additionally negatively impact our local wildlife. This is not ok. You must not allow this to happen.

fpvMatt 3 months ago

Power bills are up as it is, we just wrapped up a winter with barely any snow, and the potential health impacts of infrasound emitted from data centers are legitimately terrifying. The most positive thing that could come out of this is a handful of local construction jobs to build the facility. Once that's done, the only people who benefit financially from an AI data center are the people who own the land and equipment, give or take a maintenance specialist or two flown in from out of state.

And for what? So some 22-year-old in Silicon Valley can vibe code a face-scanning app and sell that data to the feds? Bonner and the rest of Missoula County deserve better than that.

appleeeeeeee 3 months ago
Page last updated: 12 Jun 2026, 04:29 PM