4949 Marshall
IndustrialJefferson County, Colorado · WECC
At a glance
4949 Marshall is an industrial datacenter candidate site in Jefferson County, Colorado, scoring 52.4/100 DC Readiness — 76th of 131 scored sites in the county. It sits in the WECC grid region and the PUBLIC SERVICE CO OF COLORADO service territory, where interconnection has averaged 3.5 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: Enterprise Zone sales tax exemptions; broadband equipment tax credit.
Site location
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How does 4949 Marshall compare with other sites in Jefferson County?
4949 Marshall ranks 76th of 131 scored candidate sites in Jefferson County. Its 52.4/100 is roughly in line with the county average of 54.1. It is roughly in line with the Colorado average of 50.6 and roughly in line with the national average of 53.2.
Against the Colorado average, its strongest sub-score is fiber connectivity (87 vs 62) and its weakest is power availability (30 vs 38). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is 4949 Marshall to power, fiber and other datacenters?
For connectivity, the nearest internet exchange facility is CoreSite - Denver (DE1) at 4.8 miles. 15 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is Insurance Exchange Building, 4.8 miles away.
What are the flood, water and hazard risks at 4949 Marshall?
At the county level, FEMA's National Risk Index rates Jefferson 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 Jefferson County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| WATERTON | Substation-Adjacent | 345 kV | 600 MW | 3.5 yrs | 64.4 |
| SANTA FE | Substation-Adjacent | 230 kV | 300 MW | 3.5 yrs | 64.0 |
| UNKNOWN203871 | Substation-Adjacent | 230 kV | 300 MW | 3.5 yrs | 63.6 |
| EC Coal Jefferson County | Greenfield | — | — | 3.5 yrs | 63.1 |
| Lamar Station Crossing | Brownfield | 115 kV | 0 MW | 3.5 yrs | 63.0 |
| OZ Jefferson | Greenfield | — | — | 3.5 yrs | 62.7 |
| LOOK OUT | Substation-Adjacent | 230 kV | 300 MW | 3.5 yrs | 62.6 |
| CHATFIELD | Substation-Adjacent | 230 kV | 300 MW | 3.5 yrs | 62.3 |
4949 Marshall: common questions
What is the DC Readiness score of 4949 Marshall?
4949 Marshall scores 52.4/100 on the GridCensus DC Readiness scale, rated fair. It ranks 76th of 131 scored sites in Jefferson County. The Jefferson County average is 54.1 and the Colorado average is 50.6.
Which electric utility serves 4949 Marshall?
PUBLIC SERVICE CO OF COLORADO (investor owned) holds the retail service territory that contains the site; its holding company is XCEL ENERGY.
What grid region is 4949 Marshall in?
4949 Marshall is in the WECC region. Projects interconnecting there have averaged a 3.5-year wait from queue request to operation.
How far is 4949 Marshall from an internet exchange?
The nearest internet exchange facility is CoreSite - Denver (DE1), about 4.8 miles away; 15 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, “4949 Marshall, Jefferson County, CO”, https://gridcensus.com/datacenter-sites/colorado/jefferson-county/4949-marshall-2f99f0c5 (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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