MassGIS logo

MassGIS maintains a comprehensive, statewide database of spatial information for mapping and analysis supporting emergency response, environmental planning and management, transportation planning, economic development, and transparency in state government operations.

Visit the MassGIS website

Browse all MassGIS data layers

Other Access

The information on this page (the dataset metadata) is also available in these formats.

JSON RDF

via the DKAN API

MassGIS Data: Highway Mile Markers


This statewide point data layer represents milepost locations on numbered routes throughout the state. November 2016
Download this layer
Shapefile with ArcGIS 10.0 layer file

This statewide point data layer represents milepost locations on numbered routes throughout the state, with one point for each sign marking the mileage along Interstate, US and state highways. This layer was developed by the Massachusetts Department of Transportation (MassDOT) Office of Transportation Planning GIS Services group. MassGIS added the LABEL, TOWN and ZIP fields and projected the data to the Mass. State Plane Mainland meters coordinate system.

  Mile Marker       

MassGIS stores the data as SETB.MILEPOSTS.

Attributes

The point attribute table contains the following populated fields:
ROUTE_ID Route number, with administrative type prefix and directional indicator suffix. Prefixes are: "I" (Interstate), "US" (US Route), and "SR" (State Route).
MEASURE The measure in miles along the route where the sign is located
MILE_POINT Mile distance as posted on physical sign
GPS_X X coordinate of the sign in Mass. State Plane Mainland meters, as recorded by GPS.
GPS_Y Y coordinate of the sign in Mass. State Plane Mainland meters, as recorded by GPS.
LABEL Used by MassGIS to simplify display where markers exist on both sides of a highway. LABEL = "Y" will draw only one point with the same mile measure on a route.
TOWN Name of municipality in which the sign is located.
ZIP ZIP Code in which the sign is located

Maintenance

MassDOT maintains the original dataset, which may be viewed and downloaded at its Open Data Portal page.

Last Updated 11/29/2016

Items

Contributor
Modified Date
2018-04-13
Release Date
2018-04-13
Identifier
5ddca820-a44e-4c69-8991-12147ebcbeb0
Spatial / Geographical Coverage Location
Massachusetts
License
Author
MassDOT
Contact Name
MassGIS
Contact Email
Public Access Level
Public
Data Quality
False
Content Type
Language
English (United States)