Data Center Registry
Stonebridge Pacific AI Data Center (Columbia County)
Pacific, Columbia County, Wisconsin · All 2 Stonebridge sites
Stonebridge Pacific AI Data Center (Columbia County) is a cancelled data center in Pacific, Wisconsin (Columbia County), operated by Stonebridge. The public record puts it at announced October 2025, a reported $10 billion investment.
Every line on this page traces to a public source listed at the bottom. Where a figure was looked for and not found, the row says so. A blank is never a zero.
Facility record
Cancelled
- Operator
- Stonebridge
- Facility type
- Data center, AI use likely
- Location
- Pacific, Columbia County, WI
- Coordinates
- 43.5500, -89.4000 (approximate)
- Power capacity
- Not established from a public source
- Land
- Not established from a public source
- Investment
- $10 billion
- Announced
- October 2025
- Utility
- Not established from a public source
- Cooling
- Not established from a public source
- Water use
- Not established from a public source
- Jobs
- 400 permanent
- Public subsidy
- Not established from a public source
- Community reception
- No reception on record
- Source confidence
- Reported by at least one credible outlet or filing
Timeline from the record
Newest first. Record entries come from the filings and reports the registry cites. Coverage entries are headlines from publisher feeds we monitor daily, linked to the outlet; last checked September 14, 2026.
- August 2026CancelledMaryland-based developer Stonebridge stopped exploring the Town of Pacific site after the town chair required that any proposal be aired in a public meeting; no follow-up occurred. Source: Wisconsin Watch
Opposition and litigation at this site
Nothing on record as of August 4, 2026. No lawsuit, organized opposition, or contested hearing over Stonebridge Pacific AI Data Center (Columbia County) in Pacific, Columbia County, Wisconsin appears in the sources this registry tracks. That is an absence in our sources rather than a finding that none exists, and local opposition often predates any coverage a national dataset would pick up.
If you live near this site and something is happening that this page does not show, that is worth telling us. Send us the document and it goes in the record with the source attached. For sites where opposition is already established, see every contested site we track.
Notes on the record
Proposed AI data center ~35 miles north of Madison in the Town of Pacific, Columbia County. At $10 billion it would have been among the largest data centers proposed in Wisconsin, with 400 permanent jobs and a planned 2027 opening. The proposal was dropped in 2026 after the developer declined a public review process. Coordinates are an approximate town-level centroid.
What the record does not establish, and the document that would
In every fight on our tracker the decisive fact came out of a public records request. These are the requests for this site.
- Power capacity in megawatts
- Cooling method and water use
- Tax abatements or other public subsidy
- Land area
- How the community has received it
- Which utility serves it
Which document closes each gap
- Power capacity in megawatts
- The utility's large load service agreement, the interconnection request in the grid operator's queue, or the electrical site plan in the permit file.
- Cooling method and water use
- The water service agreement, any groundwater appropriation permit, and the mechanical narrative in the site plan.
- Tax abatements or other public subsidy
- The abatement, PILOT, or development agreement approved by the county, city, or development authority, and the state's data center sales tax exemption certificate if one was issued.
- Land area
- The rezoning application, the plat, or the deed recorded with the county.
- How the community has received it
- Planning commission and governing body minutes, public comment records, and any petition or lawsuit filed in the county.
- Which utility serves it
- The electric service agreement or the utility's filing with the state public utility commission.
Have one of these documents? Send it to us and we will add it to the record with attribution.
Other sites within 30 miles
Distances are between recorded coordinates, many of which are a city or county centroid, so treat them as approximate. Cumulative load on one utility and one aquifer is the question a planning commission rarely asks.
- QTS Dane County Hyperscale Campus (DeForest) · DeForest · QTS Data Centers21 mi · Cancelled · Opposed
- Oppidan Beaver Dam Edge Data Center · Beaver Dam · Oppidan Investment Company29 mi · Permitted
- Meta Beaver Dam Data Center Campus · Beaver Dam · Meta29 mi · Under construction · 220 MW · Mixed reception
Questions people ask about this site
Is there opposition to the Stonebridge Pacific AI Data Center (Columbia County) in Pacific?
Nothing on record as of August 4, 2026. No lawsuit, organized opposition, or contested hearing over Stonebridge Pacific AI Data Center (Columbia County) in Pacific, Columbia County, Wisconsin appears in the sources this registry tracks. That is an absence in our sources rather than a finding that none exists, and local opposition often predates any coverage a national dataset would pick up.
Has anyone filed a lawsuit over the Stonebridge Pacific AI Data Center (Columbia County)?
No lawsuit over Stonebridge Pacific AI Data Center (Columbia County) appears in the record we track as of August 4, 2026. Residents most often reach a lawyer over water supply, well drawdown, noise from cooling plant, property value, or a rezoning approved without the notice the ordinance required. If any of that is happening near this site, it is worth a review whether or not a case has been filed yet.
How much water does Stonebridge Pacific AI Data Center (Columbia County) use?
No water withdrawal figure for Stonebridge Pacific AI Data Center (Columbia County) is on record here. Water use is rarely published voluntarily; it usually surfaces through a utility service agreement or a state withdrawal permit, both of which are public records. We leave the number blank rather than estimate one.
Who operates Stonebridge Pacific AI Data Center (Columbia County), and how big is it?
Stonebridge is the operator on record. We hold 2 sites for that company across the registry. No capacity figure is on record for this site.
How to cite this page
SueDataCenters.org Data Center Registry, "Stonebridge Pacific AI Data Center (Columbia County)," updated August 4, 2026, https://suedatacenters.org/data-centers/stonebridge-pacific-columbia-county-wi.
Facility data from Compute Atlas (E. Kubiak), version 1.32.0 (September 7, 2026), licensed CC BY 4.0, record https://www.compute-atlas.com/facilities/stonebridge-pacific-columbia-county-wi, retrieved September 14, 2026.
Corrections with a public source are welcome at the Compute Atlas record or through our contact page. The whole registry is available as CSV and JSON under CC BY 4.0.
Sources for this record
As compiled and cited by Compute Atlas, with our own reporting appended. Archived links are used where the original has moved.
- 1.A $10 billion data center proposal vanished after a local official told the developer the process would have to unfold in public · Wisconsin Watch · retrieved August 4, 2026
- 2.$10 Billion Data Center Proposal in Central Wisconsin Dropped to Avoid Public Process · Urban Milwaukee · retrieved August 4, 2026
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