140 Gateway Drive
IndustrialMahaska County, Iowa · MISO
At a glance
140 Gateway Drive is an industrial datacenter candidate site in Mahaska County, Iowa, scoring 51.8/100 DC Readiness — 15th of 34 scored sites in the county. It sits in the MISO grid region and the MIDAMERICAN ENERGY CO service territory, where interconnection has averaged 4.3 years from request to operation.
Power & interconnection
Speed to power
Middle-of-the-pack interconnection conditions for this grid.
Connectivity
Site characteristics
Risk & environment
Location context
Regulatory climate
Strong incentives; utilities courting hyperscale load.
Incentive detail: Sales tax exemption on DC equipment for $1M+ investments; property tax phase-in for new construction.
Site location
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How does 140 Gateway Drive compare with other sites in Mahaska County?
140 Gateway Drive ranks 15th of 34 scored candidate sites in Mahaska County. Its 51.8/100 is roughly in line with the county average of 53.0. It is roughly in line with the Iowa average of 56.4 and roughly in line with the national average of 53.2.
Against the Iowa average, its strongest sub-score is natural hazard (70 vs 69) and its weakest is power availability (30 vs 37). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is 140 Gateway Drive to power, fiber and other datacenters?
The nearest located transmission bottleneck is ALW16X26_WAPELLO_TR91_TR91 (MISO), 25 miles away. For connectivity, the nearest internet exchange facility is LightEdge Des Moines 2 (DSM2) at 48.2 miles. 10 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is Datacenter 00944024849, 48.1 miles away.
What are the flood, water and hazard risks at 140 Gateway Drive?
At the county level, FEMA's National Risk Index rates Mahaska County "Relatively Moderate".
Full DC Readiness breakdown
All 13 weighted sub-scores (0–100) behind the composite DC Readiness score.
Nearby comparable sites
Other scored datacenter candidate sites in Mahaska County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| UNKNOWN137762 | Substation-Adjacent | 161 kV | 100 MW | 4.3 yrs | 58.6 |
| UNKNOWN131612 | Substation-Adjacent | 161 kV | 100 MW | 4.3 yrs | 58.5 |
| UNKNOWN168101 | Substation-Adjacent | 161 kV | 100 MW | 4.3 yrs | 58.3 |
| UNKNOWN137744 | Substation-Adjacent | 69 kV | 50 MW | 4.3 yrs | 55.8 |
| UNKNOWN137743 | Substation-Adjacent | 69 kV | 50 MW | 4.3 yrs | 55.8 |
| TAP137752 | Substation-Adjacent | 69 kV | 50 MW | 4.3 yrs | 55.8 |
| UNKNOWN137754 | Substation-Adjacent | 69 kV | 50 MW | 4.3 yrs | 55.6 |
| UNKNOWN160047 | Substation-Adjacent | 69 kV | 50 MW | 4.3 yrs | 55.3 |
140 Gateway Drive: common questions
What is the DC Readiness score of 140 Gateway Drive?
140 Gateway Drive scores 51.8/100 on the GridCensus DC Readiness scale, rated fair. It ranks 15th of 34 scored sites in Mahaska County. The Mahaska County average is 53.0 and the Iowa average is 56.4.
Which electric utility serves 140 Gateway Drive?
MIDAMERICAN ENERGY CO (investor owned) holds the retail service territory that contains the site; its holding company is BERKSHIRE HATHAWAY ENERGY.
What grid region is 140 Gateway Drive in?
140 Gateway Drive is in the MISO region. Projects interconnecting there have averaged a 4.3-year wait from queue request to operation.
How far is 140 Gateway Drive from an internet exchange?
The nearest internet exchange facility is LightEdge Des Moines 2 (DSM2), about 48.2 miles away; 10 fiber providers report service at the location.
Related pages
About this data
Source: GridCensus composite of HIFLD transmission and substation data, EIA, FEMA National Risk Index, FCC broadband data, PeeringDB and ISO interconnection queues, as published October 10, 2026 — GridCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “140 Gateway Drive, Mahaska County, IA”, https://gridcensus.com/datacenter-sites/iowa/mahaska-county/140-gateway-drive-d7fa5478 (data as of October 10, 2026).
Dataset updated . Screening estimates derived from public data sources.
Figures are screening estimates derived from public infrastructure data. Catalogued capacity reflects theoretical candidate capacity, not deliverable or committed interconnection. Confirm all values with the utility, ISO, and on-the-ground due diligence.
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