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Railroad Crossing Inventory
Surveying and GIS data collection
- Established temporary horizontal and vertical control at over 500 at grade railroad crossings throughout a ten county area.
- Collected roadway profile and track alignment data for each crossing.
- Inventoried crossing information and saftey structures for inclusion into a GIS database.
- Collected digital images of all crossings surveyed.
Mississippi and Illinois Rivers Mapping (600 river miles)
Airborne GPS data collection and processing, mapping control, map data verification
- Provided GPS ground stations for airborne GPS mapping campaign.
- Processed all airborne GPS data for use in analytical aerotriangulation.
- Performed photogrammetric control surveys.
- Collected map verification cross sections at ten mile intervals utilizing GPS RTK and conventional survey methods.
- Collected kinematic GPS profile data for map verification along both sides of the rivers for the entire length of the project.
Dyess Air Force Base, TX and Ellsworth Air Force Base, SD
Facilities mapping and GIS data collection
- Collected infrastructure data utilizing GPS RTK and conventional survey methods.
- Located gas, water, sewer and communications utilities to centimeter level accuracy.
- Coded utility data in the field for inclusion in basewide GIS.
- Provided final linework files in CAD format for underground linear infrastructure features (gas, water, and communication lines as marked by others).
Fiber Optic Alignment LIDAR Mapping, Southcentral NM
Airborne GPS data collection and processing, mapping control, map data verification
- Provided GPS ground stations for airborne GPS/LIDAR mapping campaign along a 200 mile corridor through the New Mexico desert.
- Processed all airbirne GPS data for use in control of LIDAR data.
- Performed control survey in support of LIDAR mapping.
- Collected map verification profiles utilizing GPS RTK methods.
Southwestern PA Regional Planning Commission Mapping
Targeting, monumentation and photogrammetric control survey
- Established concrete poured in place permanent monuments throughout an eleven county region.
- Provided pre-flight targeting of all photo control stations.
- Performed a geodetic control survey in support of photogrammetric mapping to first order accuracy.
- Provided GPS base station support for airborne GPS mapping campaign.
- Prepared recovery sheets for all permanent monumentation.
Allegheny Center Mall Support Column Survey, Pittsburgh, PA
Consulting, Structural Steel Survey, Least Squared Adjustment and Error Analysis
- Provided consulting servies and equipment to survey a series of steel roof columns on a multi-story building to millimeter accuracy.
- Utilized robotic total station to minimize disturbance of instrument while working on a membrane rootftop.
- Developed measurement procedures and performed least squares adjustment to quantify positional accuracies of the center of the roof columns.
- Verified results of the initial survey utilizing GPS RTK techniques after it was determined that the roof colimns were not aligned as per the original construction plans.
PA Turnpike "Bluebooking"
Consulting, Data review and formatting, NGS Bluebook submission
- Provided consulting services to three different PA Turnpike Consultants.
- Processed all GPS data in support of creating primary control networks along the PA turnpike.
- Formatted all data for submission to the National Geodetic Survey (NGS) for inclusion into the National Spatial Reference system (NSRS).
