Name: Major Transmission Lines

Display Field: Type

Type: Feature Layer

Geometry Type: esriGeometryPolyline

Description: Major Transmission lines for Mississippi. If possible, lines were run from substation to substation. In cases of incorporated cities, lines were run into towns then stopped at the local line level. This data set by no means represents ALL transmission lines in the state - especially in incorporated cities. The goal of this data set is to represent those major lines used to connect to populated areas. Vertexes were placed at base of towers / poles along the lines when possible. Editing of existing lines was performed at 1:1,500 scale. Searching for new lines was done at 1:10,000 scale - then actual new lines were added at 1:1,500 scale. Some lines in the original data set were deleted if determined the lines were in error or no longer existed.

Copyright Text: MARIS staff created this dataset in 1990 from USGS 1986 Digital Line Graph files, then updated on and off from August 2010 - June 2011 using: 1) Countywide 1:24,000 Digital Raster Graphic Maps, 2) 2010 - 1 meter USDA NAIP imagery, 3) 2006 - 2 ft MDEM imagery, 4) 2010 - USCOE 2 ft imagery, and 5) 2007 - 2ft and 6 inch MDEM imagery of the Coast.

Min. Scale: 0

Max. Scale: 0

Default Visibility: true

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

XMin: 802748.986329746
YMin: 1310152.24543007
XMax: 906393.093345579
YMax: 1467122.75530732
Spatial Reference: 102694 (2254)

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Templates:

Name: Major Transmission Lines
Description:
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Attributes:

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Supports Rollback On Failure Parameter: true

Last Edit Date: 2/26/2026 4:47:40 PM

Schema Last Edit Date: 2/26/2026 4:47:40 PM

Data Last Edit Date: 2/26/2026 4:47:40 PM

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