An official website of the State of Oregon
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An official website of the State of Oregon »
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The Geodetic Control Group is responsible for maintaining and enhancing the statewide network of GPS reference stations in support of current and future transportation projects and to facilitate the advancement in positioning technologies. This includes:
When requesting a benchmark, we ask that you first try option A. If you cannot find what you need from the National Geodetic Survey, then use options B or C.
For Google Earth users, the All Oregon Benchmarks file is available for personal use in your Google Earth application.
Visit the National Geodetic Survey website. Select "Survey Mark Datasheets," to conduct your search.
This is the preferred method.
Send your request to ODOT through the online form, email or fax.
Currently there is no charge to the public for simple requests. However, labor intensive requests may require a fee.
Complete the attached form (734-2682) and return it to the Geometronics Unit via email.
Collect the following information and return it via email or fax at 503-986-3548.
If you are an ODOT employee, and working on a STIP project, please provide an EA number.
Which types of maps are best?
If the bench mark is that of the Army Corps of Engineers visit the Survey Monument Archival and Retrieval Tool (U-SMART) or contact:
Clifford Bondurant, SurveyorArmy Corps of Engineers, Portland DistrictPhone: 503-808-4361
Oregon Coordinate Reference System
Engineering Manuals Directory
National Geodetic Survey
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