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Continental Mapping Projects - ATC Dane County
1. CONTINENTAL MAPPING
Mapping from Earth, Sky and Space
www.continentalmapping.com
Madison, Wisconsin
Indianapolis, Indiana
Kansas City, Kansas
St. Louis, Missouri
LOCATION: Dane County, Wisconsin
YEAR COMPLETED: 2013
OBJECTIVE: Provide high accuracy imagery and mapping
to support the redesign and construction of 6 miles of
transmission line
American Transmission Company (ATC) provides electric
transmission service from the Upper Peninsula of Michigan,
throughout much of Wisconsin and into portions of Illinois.
ATC owns and manages more than 9,500 miles of
high-voltage transmission lines and 530 substations within
the region.
Continental Mapping has been providing mapping and GIS consulting services
to ATC since 2003. As ATC has grown, so have their needs for our services.
One aspect of the company’s growth has been to expand upon or replace
outdated transmission lines with a network that can handle the increased
volume of energy. Upgrades of infrastructure requires current and accurate
base mapping.
One such project was aerial mapping to support the rebuilding of 6 miles of
existing transmission line in south central Wisconsin. Existing 67KV transmis-
sion line infrastructure was in place through both urbanized and rural areas.
ATC was looking to replace the infrastructure with higher voltage lines and
reduce impacts on existing land owners.
Critical to the redesign was a current and accurate understanding of existing
infrastructure. Continental Mapping was asked to perform high accuracy
mapping of a 1000’ corridor along the proposed route. New aerial pho-
tography was acquired that supported 1”=50’ scale planimetric mapping, a
DTM capable of supporting 1’ contours, and a 3” color orthophoto.
ATC Transmission Line Mapping