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Wrong Monument Type, Improperly Installed
As part of a geodetic control project for a nearby city, I was asked to monument the location of a 1/4 corner following street construction. The 1/4 corner falls in the new roadway, so a standard city street monument — brass disk in a concrete post enclosed in a valve box — was called for. I set straddlers for the construction contractor to use, and asked that they notify me when the monument was in place so I could stamp the disk. The same contractor was responsible for one new geodetic monument install, which was specified as 1-meter Feno spike and disk.
I got the call a couple of days ago that the 1/4 corner monument was ready, so drove out there to stamp it. When I opened the lid on the valve box, here’s what I found:
[MEDIA=youtube]-y9WHQocko4[/MEDIA]
Aside from seeing that they had installed the wrong type of monument — with a disk stamped identically to the geodetic mark a mile or two away — I noticed that the disk wasn’t seated properly, which led me to grab it. The fact that I could twist it easily meant that they didn’t deploy the prongs. After I shot the little video, I pulled a little harder and lifted the whole spike out of the ground.
Back to the drawing board…
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