M-59 and Gratiot
IndustrialMacomb County, Michigan · MISO
At a glance
M-59 and Gratiot is an industrial datacenter candidate site in Macomb County, Michigan, scoring 55.6/100 DC Readiness — 84th of 98 scored sites in the county. It sits in the MISO grid region and the DTE ELECTRIC COMPANY service territory, where interconnection has averaged 2.2 years from request to operation.
Power & interconnection
Speed to power
Shorter queues and healthier completion here — a faster path to energization than the national norm.
Connectivity
Site characteristics
Risk & environment
Location context
Regulatory climate
No notable statewide DC restriction on record; confirm local zoning and utility tariffs.
Incentive detail: Personal property tax exemption for eligible DC equipment; MEGA tax credits.
Site location
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How does M-59 and Gratiot compare with other sites in Macomb County?
M-59 and Gratiot ranks 84th of 98 scored candidate sites in Macomb County. Its 55.6/100 is roughly in line with the county average of 58.4. It is roughly in line with the Michigan average of 55.2 and roughly in line with the national average of 53.2.
Against the Michigan average, its strongest sub-score is fiber connectivity (76 vs 68) and its weakest is power availability (30 vs 34). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is M-59 and Gratiot to power, fiber and other datacenters?
For connectivity, the nearest internet exchange facility is ManagedWay TYM2 at 13.6 miles. 7 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is Chick-fil-A Hiring Center, 6.5 miles away.
What are the flood, water and hazard risks at M-59 and Gratiot?
At the county level, FEMA's National Risk Index rates Macomb 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 Macomb County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| UNKNOWN128399 | Substation-Adjacent | 345 kV | 600 MW | 2.2 yrs | 69.1 |
| UNKNOWN128466 | Substation-Adjacent | 345 kV | 600 MW | 2.2 yrs | 68.5 |
| SENECA | Substation-Adjacent | 345 kV | 600 MW | 2.2 yrs | 68.2 |
| UNKNOWN128512 | Substation-Adjacent | 345 kV | 600 MW | 2.2 yrs | 67.6 |
| DEADEND167215 | Substation-Adjacent | 345 kV | 600 MW | 2.2 yrs | 67.3 |
| UNKNOWN128514 | Substation-Adjacent | 345 kV | 600 MW | 2.2 yrs | 67.2 |
| OZ Macomb | Greenfield | — | — | 2.2 yrs | 64.5 |
| OZ Macomb | Greenfield | — | — | 2.2 yrs | 64.4 |
M-59 and Gratiot: common questions
What is the DC Readiness score of M-59 and Gratiot?
M-59 and Gratiot scores 55.6/100 on the GridCensus DC Readiness scale, rated good. It ranks 84th of 98 scored sites in Macomb County. The Macomb County average is 58.4 and the Michigan average is 55.2.
Which electric utility serves M-59 and Gratiot?
DTE ELECTRIC COMPANY (investor owned) holds the retail service territory that contains the site; its holding company is DTE ENERGY.
What grid region is M-59 and Gratiot in?
M-59 and Gratiot is in the MISO region. Projects interconnecting there have averaged a 2.2-year wait from queue request to operation.
How far is M-59 and Gratiot from an internet exchange?
The nearest internet exchange facility is ManagedWay TYM2, about 13.6 miles away; 7 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, “M-59 and Gratiot, Macomb County, MI”, https://gridcensus.com/datacenter-sites/michigan/macomb-county/m-59-and-gratiot-77df5f62 (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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