CONTINENTAL MAPPING Mapping from Earth, Sky and Spacewww.continentalmapping.com

Madison, WisconsinIndianapolis, IndianaKansas City, Kansas

St. Louis, Missouri

As communities grow, roadway infrastructure often becomes unable to support the increase in traffic and speeds. What was initially country highway with 90 degree turns and limited shoulders must be redesign to support speed appro-priate turn radius, vertical and horizontal road alignments and an improvement in pavement quality.

For some time Rock County was discussing and evaluating the redesign of County Highway F running from Janesville to Edgerton in Rock County, WI. Supported by state funds from the Wisconsin Department of Transportation, the County embarked on a project to complete a redesign of that 8 mile stretch

of road.

The County selected a design contractor but was unable to complete contract negotiations due, in part, to price. The design contractor

engaged with Continental Mapping to supplement their field crew survey estimate with a photogrammetric mapping approach. Their surveyors still completed all photo control and topographic survey in obstructed areas but Continental Mapping saved the design engineers $8,000 by flying the

roadway and completing planimetric mapping and a Digital Terrain Model (DTM).

Continental Mapping successfully delivered 1”=50’ planimetric mapping and 1-foot contours (0.3’ RMSE). All data was provided in MicroStation and

Civil 3D formats.

Municipal & Local Gov Photogrammetry

LOCATION: Rock County, Wisconsin

YEAR COMPLETED: 2013

OBJECTIVE: Provide high accuracy mapping to support �nal design for road realignment and repaving

KEY POINTS: • Cost Savings: Utilizing photogrammetry for some aspects of field survey saved the design engineer $8,000 • Integration: The DTM and contours integrated tightly to the supplimental field data collected by the survey crew • Design Ready Deliverables: CAD deliverables were design ready and easily brought into CAD for the design engineers to utilize • High Accuracy: Accuracy needs based CAD deliverables supported final design

LAKE

MICHIGAN