Survey Monument Installation

Survey Legend
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This video provides a detailed guide on how to install a standard survey monument in the city of Campbell using city standard drawings of 16 and 18. The video starts by defining survey monuments as physical objects that establish the location of boundary lines in the ground. The city of Campbell uses standard brass marker disks for their survey monuments.

Before starting the installation process, the first step is to verify that the site is free of any underground utility lines using proper equipment. Once verified, the process can begin.

The first hole should be one and a half feet wide and about one and a half feet deep. In the center of this hole, a second hole should be dug out, which should be six inches wide and about one and a half feet deep. The entire depth of the hole should be three feet.

To prepare the location where the brass marker will rest, a six-inch diameter PVC pipe is cut to about two feet in length and placed inside the smaller hole. The pipe must be centered and stable, and a plumb bob is used to accurately center the pipe. On-site, PC concrete is mixed and poured inside the six-inch PVC pipe. The concrete should be poured so that a little mound is formed over the top of the PVC pipe. Once the concrete is poured, the brass marker is placed in the center on top of the concrete, and a plumb bob is used to center the brass marker.

After setting the brass marker in place, the PVC pipe and the standard monument box are stabilized by placing 4 inches of granular material carefully outside of the 6-inch diameter PVC pipe. Then an 8-inch diameter PVC pipe is cut to about 6 inches and placed on top of the granular material, so that the smaller PVC pipe is enclosed inside of it. This serves to protect the brass marker.

The standard monument box is then placed on top of the 8-inch diameter PVC pipe, making sure that the top of the box is perfectly in line with the existing road surface. Adjustments to the PVC pipe shall be made accordingly so that the box is flush with the road. For stabilization, PC concrete is poured in the hole on the outside of the 8-inch PVC pipe and the standard monument box. The top of the concrete should be 2 inches below the road surface pavement. Finally, pavement is poured in the remaining 2 inches of the hole, and the cover is placed on top of the standard monument box.

The video concludes by showing the final result of the survey monument installation.

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