Massachusetts

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Massachusetts, United States
Wikidata

latitude: 42.34, longitude: -72
Browse map of Massachusetts 42°20′24.00″ N, 72°00′00.00″ W
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Massachusetts
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Massachusetts is a state in the United States at latitude 42°20′24.00″ North, longitude 72°00′00.00″ West.

Map

Cities/Towns

See also: list of boundary relations.

State-provided public domain imagery and data

The Commonwealth of Massachusetts provides public domain imagery and other data sources which can be very helpful when updating OpenStreetMap. Refer to these wiki pages for more information:

MassGIS Imports

The building and open space layers from MassGIS have been imported for large swathes of Massachusetts, thanks to effort by User:crschmidt and others in the region. More details can be found on the MassGIS#Imported_layers page.

One Way Roads with unclear direction (99%+ fixed)

Long ago, imported road data lacked the direction of one-way roads, saying only that it was oneway., and there was a FIXME. Almost all of this was fixed by 2012, but it's possible some issues remain.

If you would like to help, open an area with which you are familiar in Keepright and go to work!

Conservation Mapping

The Massachusetts/Conservation page has some notes on how to map conservation land and trails in Massachusetts.

Rivers & Streams (SARIS)

The official list of rivers and streams was first compiled in 1982, and while updates have been made, they don't seem to have been formally published. The original work is also ... challenging to track down, although it is available directly from: https://archives.lib.state.ma.us/handle/2452/833504 . The citation for it is:

Halliwell, D. B., W. A. Kimball, and A. J. Screpetis. 1982. Massachusetts Stream Classification Program. Part 1: Inventory of Rivers and Streams. Mass. Div. Water Pollution Control, Westboro, MA Publ. No. 13002-138-72-10-82-CR, 129 pp.

The identifying numbers contained in it can be added to the map with Key:ref:US:MA:SARIS.

Power Grid

Cities and towns in Massachusetts have a mix of municipal and private electric companies providing power. For a specific town, you can look at the Mass.gov page "Find My Electric, Gas, and Water Company" for the provider (or in some rare cases, providers) who supplies the town.

General Resources

The Massachusetts Department of Energy Resources regularly publishes a list of distribution circuits providing electricity to residents and businesses within the state. This can be found by looking for the "Eligible Circuits by EDC" spreadsheet which appears to be published annually.

You can also find information on the Mass DPU Dockets site about what major projects a given electric provider may be undertaking.

Understanding Feeder IDs

Every power line providing distribution power within the state is given a unique identifier by the electric company. This identifier is not consistent across companies but is usually consistent within a given company.

National Grid (formerly New England Power Company and Massachusetts Electric Company)

Feeder IDs

National Grid publishes feeder lists where each feeder is given a unique identifier with the format of

00-1111A222

Where 00 represents the district that the feeder is in, 1111 is the substation identifier that supplies the feeder circuit, A is the voltage indicator, and 222 is the feeder number for that specific substation.

Districts by ID
ID District
01 Central
04 Nantucket
05 Southeast
07 South Shore
12 North Shore
14 Merrimack Valley
Voltages by Indicator
Indicator Voltage (V)
T 34500
K 23000
W 13800
L 13200
J 4160
H 2400

Sub-transmission IDs

There are two formats used depending on the age of the transmission line.

00-1111A222

Matching the format of the feeder IDs.

0111

Where 0 is the voltage indicator and 111 is the feeder ID.

Voltage by Indicator
Indicator Voltage
1 13800
2 23000
3 24500

Eversource Energy (formerly NSTAR Electric and WMECo)

Feeder IDs

Districts by Prefix
Prefix District
2 New Bedford
3 Plymouth
4 Cape & Vineyard

Unitil (Fitchburg Gas and Electric Light Company)

There are 4 towns in Massachusetts which have Unitil as their electric provider.

Feeder IDs

00A11

Where 00 is the substation identifier, A is the voltage indicator, and 11 is the feeder circuit number for that substation.

Voltages by Indicator
Indicator Voltage (V)
T ?
W 13800
H 4160

Municipal Light Plants

A small percentage of cities and towns in Massachusetts have chosen to have a municipal utility company provide electricity to their residents.

Sample Maps

State Routes

See Massachusetts/State Route Relations.