Mann Creek Project at 44.414, -116.910
Federal ExcessWashington County, Idaho · WECC
At a glance
Mann Creek Project at 44.414, -116.910 is a federal excess datacenter candidate site in Washington County, Idaho, scoring 47.0/100 DC Readiness — 26th of 27 scored sites in the county. It sits in the WECC grid region and the IDAHO POWER CO service territory, where interconnection has averaged 5.0 years from request to operation.
Power & interconnection
Speed to power
Deep queue and long historical waits — plan for a multi-year interconnection timeline and engage the utility early.
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 on computer equipment.
Site location
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How does Mann Creek Project at 44.414, -116.910 compare with other sites in Washington County?
Mann Creek Project at 44.414, -116.910 ranks 26th of 27 scored candidate sites in Washington County. Its 47.0/100 is roughly in line with the county average of 50.3. It is roughly in line with the Idaho average of 51.7 and about 12% below the national average of 53.2.
Against the Idaho average, its strongest sub-score is natural hazard (85 vs 85) and its weakest is fiber connectivity (46 vs 61). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is Mann Creek Project at 44.414, -116.910 to power, fiber and other datacenters?
For connectivity, the nearest internet exchange facility is Tonaquint Data Center - Boise ID at 63.2 miles. 2 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is Tonaquint Data Center - Boise ID, 63.2 miles away.
What are the flood, water and hazard risks at Mann Creek Project at 44.414, -116.910?
At the county level, FEMA's National Risk Index rates Washington County "Relatively Low".
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 Washington County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| HORSE FLAT | Substation-Adjacent | 230 kV | 300 MW | 5.0 yrs | 58.4 |
| WEISER | Substation-Adjacent | 138 kV | 100 MW | 5.0 yrs | 55.4 |
| TAP207370 | Substation-Adjacent | 115 kV | 100 MW | 5.0 yrs | 54.2 |
| TAP204965 | Substation-Adjacent | 138 kV | 100 MW | 3.5 yrs | 54.1 |
| EC FFE Washington County | Greenfield | — | — | 5.0 yrs | 53.9 |
| UNKNOWN202612 | Substation-Adjacent | 138 kV | 100 MW | 3.5 yrs | 53.5 |
| HUNTINGTON | Substation-Adjacent | 138 kV | 100 MW | 3.5 yrs | 53.5 |
| TAP207700 | Substation-Adjacent | 138 kV | 100 MW | 3.5 yrs | 53.5 |
Mann Creek Project at 44.414, -116.910: common questions
What is the DC Readiness score of Mann Creek Project at 44.414, -116.910?
Mann Creek Project at 44.414, -116.910 scores 47.0/100 on the GridCensus DC Readiness scale, rated fair. It ranks 26th of 27 scored sites in Washington County. The Washington County average is 50.3 and the Idaho average is 51.7.
Which electric utility serves Mann Creek Project at 44.414, -116.910?
IDAHO POWER CO (investor owned) holds the retail service territory that contains the site; its holding company is IDACORP, INC.
What grid region is Mann Creek Project at 44.414, -116.910 in?
Mann Creek Project at 44.414, -116.910 is in the WECC region. Projects interconnecting there have averaged a 5.0-year wait from queue request to operation.
How far is Mann Creek Project at 44.414, -116.910 from an internet exchange?
The nearest internet exchange facility is Tonaquint Data Center - Boise ID, about 63.2 miles away; 2 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, “Mann Creek Project at 44.414, -116.910, Washington County, ID”, https://gridcensus.com/datacenter-sites/idaho/washington-county/mann-creek-project-c159ba47 (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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