GPS / Geodetic Surveys
Global Positioning System (GPS) surveying is used to establish precise horizontal and vertical positions of points on the ground for the use in boundary determination, location of monitoring wells, control for aerial photographs, and other related purposes.
Reasons for a GPS / Geodetic Survey:
- Aerial photo control
- Large surveys
- State grid systems
USACE Portland District
Statewide Land Surveying is under current contract along with David C. Smith and Associates for U.S. Army Corps of Engineers, Portland District for on call Aerial Mapping and LiDAR Services. Utilizing GNSS receivers, Statewide collects geospatial positions of ground control survey points to support David C. Smith and Associates aerial mapping.
Other Statewide GPS Survey Projects
David C Smith and Assoc – Seal Rock Water District, Seal Rock, Oregon
USACE Portland District – Annual Jetty Surveys, Oregon
David C Smith and Assoc – City of Anacortes, Anacortes, Washington
USACE Portland District – Comprehensive Evaluation of Project Datum (CEPD), Willamette Valley, Oregon
David C Smith and Assoc – Rinker Material, Boardman, Oregon