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following stoopid descriptions.


wbf pls

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So I was looking for NGS monument JU0663 by the railroad in Bridgeport, NJ. The database description reads, "6.7 FEET NORTH OF THE NORTH RAIL, AT A SEMAPHORE, AND IN THE TOP OF THE SOUTHWEST CORNER OF THE CONCRETE BASE." I found this concrete base, raised about ten inches above the ground, about 24"x24" square. I approached it from its north side. On the side facing me somebody had spray painted "G 10." The southeast corner was also spray painted. The semaphore was gone. Oddly, there was no evidence that there was a disk there. Nor does it seem like there was enough space to have placed a disk there.

 

beed5c4e-a6d4-4713-af10-a1c19c3810cc.jpg

 

I reached out over the concrete base with my camera and took a photograph to document the absence of a bench mark disk on the southeast corner of the base. Later that evening I downloaded the picture into my computer and what do I see? Beyond the edge is another concrete block flush with the ground with part of the disk visible over the edge of the raised concrete block.

 

8b8e8316-2b73-4f41-978f-087be955659e.jpg

Edited by wbf pls
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Welcome to the forums WBF PLS.

 

I've seen one similar to that, but I was lucky enough to find it and scratch my head while I was there. GT1581 was placed on the top of a curb on a bridge. Later on, the county decided that a curb was not enough to to keep cars out of the canal and placed a concrete barricade on top of the curb. They managed to cover part of GT1581, but they left enough uncovered that it can still be used.

 

31991_100.jpg

 

- Kewaneh

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It's not just survey crews and highway departments and railroads that do stuff like this--apparently ALL professions will obscure survey markers!

 

Consider RK0588. The photo is marginal as it was late in the evening, and I had forgotten my camera. I shot this one with my phone. The area had been logged, and they left a ten-inch tree was left right on top of this one. I could see enough of the disk to identify it.

 

ab2b5c8c-a0ac-4ff0-8798-25a479d727d6.jpg

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How much does the impact of a falling 10" tree change the elevation of a concrete post? But now I see that this is not an elevation benchmark. So if the tree hit square on the horizontal coordinates should still be good.

Edited by Bill93
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It's not just survey crews and highway departments and railroads that do stuff like this--apparently ALL professions will obscure survey markers!

 

Consider RK0588. The photo is marginal as it was late in the evening, and I had forgotten my camera. I shot this one with my phone. The area had been logged, and they left a ten-inch tree was left right on top of this one. I could see enough of the disk to identify it.

 

ab2b5c8c-a0ac-4ff0-8798-25a479d727d6.jpg

 

Apparently not everyone keeps a chainsaw in their recovery kit like me! ;)

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