Survey Unit

• Our services
Boundary, topographic; construction rights of way and other surveying services.

• Survey control
Determining accurate positions of monuments which control the position of private property lines and rights-of-way in King County.

• Puget Reference Station Network
A network of permanent Global Positioning System (GPS) Continuous Operation Reference Stations (CORS) delivering real-time GPS corrections via cellular technology.

• Monuments
We assist private surveyors and citizens with the recovery

and preservation of monuments which control the location of property lines, easements and road rights-of-way.

• History of surveying
Over 150 years of surveying history in King County!

• Resources
Links to other survey Web sites and related information.

Related information

• Surveying boundaries and locating underground utilities

Contact us

Chief Surveyor Trevor Cray, PLS
Roads Survey Unit, Bldg C
155 Monroe Ave NE
Renton, WA 98056
206-205-9910
206-296-7719 (fax)

Updated: Sept. 4, 2007