LITTLE ROCK ARCH ST
Substation-AdjacentPulaski County, Arkansas · MISO
At a glance
LITTLE ROCK ARCH ST is a substation-adjacent datacenter candidate site in Pulaski County, Arkansas, scoring 58.4/100 DC Readiness — 54th of 166 scored sites in the county. Its nearest substation is LITTLE ROCK ARCH ST (0 mi, 115 kV). It sits in the MISO grid region and the ENTERGY ARKANSAS LLC service territory, where interconnection has averaged 4.3 years from request to operation. GridCensus catalogs 100 MW of candidate capacity here.
Power & interconnection
Speed to power
Middle-of-the-pack interconnection conditions for this grid.
Connectivity
Risk & environment
Location context
Regulatory climate
No notable statewide DC restriction on record; confirm local zoning and utility tariffs.
Site location
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How does LITTLE ROCK ARCH ST compare with other sites in Pulaski County?
LITTLE ROCK ARCH ST ranks 54th of 166 scored candidate sites in Pulaski County. Its 58.4/100 is roughly in line with the county average of 56.4. It is roughly in line with the Arkansas average of 53.6 and roughly in line with the national average of 53.2.
Against the Arkansas average, its strongest sub-score is power availability (56 vs 42) and its weakest is speed to power (49 vs 51). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is LITTLE ROCK ARCH ST to power, fiber and other datacenters?
The nearest mapped substation, LITTLE ROCK ARCH ST, is about 0 miles away and operates at 115 kV. For connectivity, the nearest internet exchange facility is Mainstream Little Rock at 11.6 miles. 11 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is Mainstream Little Rock, 11.6 miles away.
What are the flood, water and hazard risks at LITTLE ROCK ARCH ST?
The site is in FEMA flood zone X, outside the Special Flood Hazard Area (minimal or moderate flood risk). At the county level, FEMA's National Risk Index rates Pulaski County "Relatively High".
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 Pulaski County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| MABELVALE SUBSTATION | Substation-Adjacent | 500 kV | 1,000 MW | 4.3 yrs | 68.6 |
| WRIGHTSVILLE | Substation-Adjacent | 500 kV | 1,000 MW | 4.3 yrs | 67.5 |
| MAYFLOWER | Substation-Adjacent | 500 kV | 1,000 MW | 4.3 yrs | 67.5 |
| OZ Pulaski | Greenfield | — | — | 4.3 yrs | 64.5 |
| EC Near Cecil Lynch | Greenfield | — | — | 4.3 yrs | 62.4 |
| UNKNOWN107783 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 61.5 |
| EC Near Archer Daniels Midland Little Rock | Greenfield | — | — | 4.3 yrs | 61.3 |
| UNKNOWN117267 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 60.7 |
LITTLE ROCK ARCH ST: common questions
What is the DC Readiness score of LITTLE ROCK ARCH ST?
LITTLE ROCK ARCH ST scores 58.4/100 on the GridCensus DC Readiness scale, rated good. It ranks 54th of 166 scored sites in Pulaski County. The Pulaski County average is 56.4 and the Arkansas average is 53.6.
What is the nearest substation to LITTLE ROCK ARCH ST?
The nearest mapped substation is LITTLE ROCK ARCH ST, about 0 miles away, at 115 kV. GridCensus catalogs 100 MW of candidate capacity for the site.
Which electric utility serves LITTLE ROCK ARCH ST?
ENTERGY ARKANSAS LLC (investor owned) holds the retail service territory that contains the site; its holding company is ENTERGY CORP.
What grid region is LITTLE ROCK ARCH ST in?
LITTLE ROCK ARCH ST is in the MISO region. Projects interconnecting there have averaged a 4.3-year wait from queue request to operation.
Is LITTLE ROCK ARCH ST in a flood zone?
The site is in FEMA flood zone X, outside the Special Flood Hazard Area (minimal or moderate flood risk).
How far is LITTLE ROCK ARCH ST from an internet exchange?
The nearest internet exchange facility is Mainstream Little Rock, about 11.6 miles away; 11 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, “LITTLE ROCK ARCH ST, Pulaski County, AR”, https://gridcensus.com/datacenter-sites/arkansas/pulaski-county/little-rock-arch-st-05fad5c9 (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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