A vertical datum is technically, a surface of zero elevation to which heights of various points are referred in order that those heights be in a consistent system.Read More
Jim retired from Spokane County as a GPS Survey Technician in May 2015 and is a member of and the GPS Committee Co-Chair for the Land Surveyors Association of Washington State. His primary function, before retirement, was to research and draft Records of Survey and Right-of-Way drawings for construction projects at Spokane County and assemble the survey crew’s field data into “Design Ready Drawings”. He also lectures on GPS, AutoCAD and Field Survey Procedures and has been a regular Speaker at Trimble’s Dimensions conventions.
On June 4, 1851, John B. Preston set a ?ed Cedar Stake?to indicate the starting point of all public land surveys in what was then called the Oregon Territory.Read More
When I first started working in the survey profession there were many new things I quickly learned. The two I heard the most were: dig the hole wider and deeper, and hold the dumb end of the chain.Read More
April 13 was President Jefferson? birthday, which is a great time to remind you of the Jefferson Stone, which resides near the Washington Monument.Read More
Today, with survey grade GPS, measurements can be made to the nearest centimeters. Are today? advancements in technology improvements that we really need? Were the skills and accuracies of yesterday good enough for land measurements? Is GPS surveying just another way of challenging yesterdays’ skills?Read More
When most of your research is completed and you?e ready to set up the field work, one of your early considerations could be, ?o I already have control in the area I can use??Read More