Category Archives: Professional Surveyor Archives
Busness Leader: SURV-KAP Celebrates More than 40 Years
W.C. Croft owned and ran several businesses in his lifetime, from an industrial pump company to an enterprise that provided the lights for the Jefferson Memorial in Washington, D.C. But the one with a special place in his heart was SURV-KAP LLC, based in Tucson, Arizona, producing monuments and other products for surveyors.As the firm recently...
Gigglebytes: I May Be Old, but at Least I’m Not Accurate
In the last five to six years, we in the survey field have been … let’s see how to put this delicately … free of insect bites and ticks, warm and dry, depressed, and disgusted, and we have had to attempt creative ways to pay the bills. But, as the economy improves, hope has begun to...
Around the Globe: Aleksey Korotya and Evgeniy Osadchiy Present Ramparts and Moats
Editor’s Note: The following paper is focused on the surveying and mapping of archaeological sites, but also examines a dilemma that surveyors face in nearly all of their work; balancing the highest possible positional quality with affordability and practicality. In an adaptation of their academic paper, Aleksey Korotya and Evgeniy Osadchiy present how they evaluated and...
Feature: Making Lewis and Clark Proud
Talk about a full arsenal of tools: this 80-year-old company provided all their services (plus an outside team of divers) to begin rehabilitating and replacing the Lewis and Clark Viaduct bridges in Kansas City, Kansas. It isn’t often that surveyors and mappers have an opportunity to apply a full arsenal of tools to complete a single...
Feature: Long Shot
An experienced tunnel surveyor takes on New York City’s East Side Access, the country’s biggest and most complex tunnel project. All photos © Metropolitan Transportation Authority/Patrick CashinControl surveys for long tunnels may be the most nerve-wracking job in surveying; tunnel surveyors must work from short baselines and extend control for miles, with no ties to surface...
Feature: A New Datum
Finally: the rationale for a new geometric geodetic reference frame to replace the North American Datum of 1983. In 2008, the NGS released the publication of a ten-year operating plan that, among other things, called for efforts to replace NAD 83 and NAVD 88, the official horizontal and vertical geodetic datums of the United States. (Note...