We set control, then lay out grid lines, anchor bolts and embed plates for plants, structures and buildings. Layout is held to under 0.01 ft, with as-built checks before the pour.
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Reliable survey control is the backbone of any engineering, mapping or GIS project. We use Real Time Kinematic (RTK) GPS together with static observations. We process the static observations to Continuously Operating Reference Stations (CORS) or to local geodetic control monuments.
We deliver coordinates on any datum and projection you need.
Our layout work includes the Bridalveil Fall trails and overlooks in Yosemite. For a national contractor, we also did control and layout for two Yosemite wastewater plants, with structural steel and precast buildings.
We set anchor bolts and embed plates to the grid. Before the pour, we check them as built.
Control and construction layout for a national contractor on two Yosemite wastewater plants, including structural steel and precast buildings, plus deformation monitoring with a 0.005 ft (1/16″) reporting threshold.
All of the topographic surveying, mapping and construction layout for the Bridalveil Fall trails and overlooks.
Other recent projects include:
