EAST BRIDGEWATER
SubstationMassachusetts · TOWN OF MIDDLEBOROUGH - (MA)
At a glance
EAST BRIDGEWATER is an electric transmission substation in Massachusetts, on TOWN OF MIDDLEBOROUGH - (MA)'s transmission network. It is classified as sub-transmission (115 kv) and connects 2 transmission lines. Substation proximity is one of the strongest speed-to-power signals for siting a datacenter — interconnection distance to an energized, high-voltage bus is often the binding constraint on time-to-energization.
Voltage & classification
Ownership
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #113213 | 115 kV | TOWN OF MIDDLEBOROUGH - (MA) | IN SERVICE | 2.5 mi |
| #137053 | 115 kV | TOWN OF MIDDLEBOROUGH - (MA) | IN SERVICE | 1.9 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of EAST BRIDGEWATER, ranked by DC Readiness. Sites this close to an energized substation carry a strong speed-to-power advantage.
| Site | Type | State | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|---|
| MYSTIC | Substation-Adjacent | MA | Suffolk County | 345 kV | 600 MW | 4.3 yrs | 72.4 |
| K STREET | Substation-Adjacent | MA | Suffolk County | 345 kV | 600 MW | 4.3 yrs | 72.4 |
| KINGSTON STREET | Substation-Adjacent | MA | Suffolk County | 345 kV | 600 MW | 4.3 yrs | 68.2 |
| NORTH CAMBRIDGE | Substation-Adjacent | MA | Suffolk County | 345 kV | 600 MW | 4.3 yrs | 68.1 |
| HYDE PARK | Substation-Adjacent | MA | Suffolk County | 345 kV | 600 MW | 4.3 yrs | 66.9 |
| HOLBROOK | Substation-Adjacent | MA | Norfolk County | 345 kV | 600 MW | 4.3 yrs | 66.7 |
| AUBURN STREET | Substation-Adjacent | MA | Norfolk County | 345 kV | 600 MW | 4.3 yrs | 66.5 |
| WALTHAM | Substation-Adjacent | MA | Middlesex County | 230 kV | 300 MW | 4.3 yrs | 66.3 |
How does EAST BRIDGEWATER compare with other substations in Massachusetts?
Massachusetts has 612 substation records in HIFLD, of which 229 carry a station name; the rest are unnamed tap points, risers and line ends. 144 named substations in the state are in EAST BRIDGEWATER's 115–229 kV band (63% of named stations). 39 sit in a higher band. 31 named substations in Massachusetts operate at 345 kV or above. The highest voltage recorded in the state is 345 kV, and the state median is 115 kV.
Who owns the transmission lines at EAST BRIDGEWATER?
The 2 connected lines listed above are owned by TOWN OF MIDDLEBOROUGH - (MA). Line voltages range from 115 kV to 115 kV. Their combined recorded length is about 4.4 miles.
How do candidate sites near EAST BRIDGEWATER score?
The 8 highest-scoring candidate sites within about 25 miles range from 66 to 72 on the 0–100 DC Readiness scale. They fall in Suffolk County, Norfolk County, Middlesex County. The Massachusetts average across 1,861 scored sites is 54.2. 305 of those Massachusetts sites are classed as substation sites (candidate locations generated at an existing substation).
Frequently asked questions
What voltage is EAST BRIDGEWATER substation?
EAST BRIDGEWATER has a maximum voltage of 115 kV. That places it in the 115–229 kV band. The median named US substation in this dataset is 115 kV, so EAST BRIDGEWATER is at the national midpoint.
How many transmission lines connect to EAST BRIDGEWATER substation?
2 transmission lines terminate at or pass through EAST BRIDGEWATER in the HIFLD line data. The connected lines listed here run at 115 kV. Together the listed lines cover about 4.4 miles.
Who owns EAST BRIDGEWATER substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at EAST BRIDGEWATER belong to TOWN OF MIDDLEBOROUGH - (MA). GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is EAST BRIDGEWATER substation located?
EAST BRIDGEWATER is in Massachusetts at 42.0238, -70.9666. The datacenter candidate sites closest to it are in Suffolk County, Norfolk County, Middlesex County.
Are there datacenter candidate sites near EAST BRIDGEWATER substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of EAST BRIDGEWATER. The highest-scoring is MYSTIC at 72/100. Across Massachusetts, the average DC Readiness score is 54.2.
Other 115 kV substations in Massachusetts
- MILLBURY NO.2· 13 lines
- SOMERSET· 10 lines
- DOREEN· 8 lines
- BAKER STREET· 7 lines
- BRIGHTON· 7 lines
- FITCHBURG· 7 lines
- AYER· 6 lines
- BLACKSTONE JUNCTION· 6 lines
- All named substations in Massachusetts· 229 stations
- Datacenter candidate sites in Massachusetts· 1,861 sites
- Brownfield and retired plant sites in Massachusetts
- Substations by state
About this data
Source: HIFLD Electric Substations and Transmission Lines (U.S. Department of Homeland Security), as published June 29, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “EAST BRIDGEWATER substation, Massachusetts”, https://gridcensus.com/substations/massachusetts/east-bridgewater-f2a42117 (data as of June 29, 2026).
Dataset updated . Screening estimates derived from public data sources.
Substation attributes are derived from public HIFLD / EIA infrastructure data and may lag real-world upgrades or retirements. Voltage and connected-line counts are screening figures — confirm available capacity and interconnection terms directly with the operating utility and ISO.
Go deeper than the public screen
Every site and score for EAST BRIDGEWATER substation, Massachusetts is free to browse. Pro adds Watchtower on 25 sites, alerts when new candidate sites, datacenters or interconnection-queue requests appear in your markets, score and capacity history, and CSV export. Enterprise adds team seats, weekly data files for all 147,272 sites, the REST API and an MCP server for AI tools.