Posted: 8/8/2012 7:57:48 AM EDT
Does anyone know what this is? I suspect it is some type of a survey marker. It was on a property I was assessing. It is an aluminum plate about 6 inches on a side anchored into concrete with 3 bolts. There were no markers on it. 
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That's the bottom plate for a street sign. The signs have a matching plate that sit on top of the one in the ground. Three bolts are used at the cutouts to secure the two pieces. This, it's designed as a two piece plate so the bolts will break away in high winds or something hitting it. Then they just pick it up and put three new bolts in and it's good to go again! |
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That's the bottom plate for a street sign. The signs have a matching plate that sit on top of the one in the ground. Three bolts are used at the cutouts to secure the two pieces. LOL I wonder if there is a road about three feet off to the side of the picture. |
| It does look permanent. The site is scheduled for development. I wonder if it would be a mounting plate for survey equipment that would be set up regularly. It's been 30 years since my surveying classes, I reckon things have change since then, huh? Thanks for the input. |
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That's the bottom plate for a street sign. The signs have a matching plate that sit on top of the one in the ground. Three bolts are used at the cutouts to secure the two pieces. LOL I wonder if there is a road about three feet off to the side of the picture. It is along a road. None of the other street signs in the area were mounted with one of these. |
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Quoted: Does anyone know what this is? I suspect it is some type of a survey marker. It was on a property I was assessing. It is an aluminum plate about 6 inches on a side anchored into concrete with 3 bolts. There were no markers on it. http://i663.photobucket.com/albums/uu355/spydad45/P8010032.jpg Pole base for a breakaway pole. |
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Quoted: Quoted: Quoted: That's the bottom plate for a street sign. The signs have a matching plate that sit on top of the one in the ground. Three bolts are used at the cutouts to secure the two pieces. LOL I wonder if there is a road about three feet off to the side of the picture. It is along a road. None of the other street signs in the area were mounted with one of these. They are also used for traffic light and roadway lighting poles. Can't really tell how big that one is though. |
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Does anyone know what this is? I suspect it is some type of a survey marker. It was on a property I was assessing. It is an aluminum plate about 6 inches on a side anchored into concrete with 3 bolts. There were no markers on it. http://i663.photobucket.com/albums/uu355/spydad45/P8010032.jpg Pole base for a breakaway pole. I think we have the answer. Thanks guys, I knew you wouldn't disappoint. |
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The finished product... http://safety.fhwa.dot.gov/roadway_dept/policy_guide/road_hardware/ctrmeasures/breakaway/images/fig_2.jpg cool, thanks. |
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Quoted: The finished product... http://safety.fhwa.dot.gov/roadway_dept/policy_guide/road_hardware/ctrmeasures/breakaway/images/fig_2.jpg Learned something new today. Thanks. |
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Quoted: Quoted: The finished product... http://safety.fhwa.dot.gov/roadway_dept/policy_guide/road_hardware/ctrmeasures/breakaway/images/fig_2.jpg Learned something new today. Thanks. On the larger poles such as for lighting or traffic signals, there is a thin steel plate, maybe 16 gauge, that goes in between the two mount plates. It's there to slice the electrical wires rather than have the pole fall and yank the conductors, possibly breaking them in an unreachable location. |
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That's the bottom plate for a street sign. The signs have a matching plate that sit on top of the one in the ground. Three bolts are used at the cutouts to secure the two pieces. LOL I wonder if there is a road about three feet off to the side of the picture. It is along a road. None of the other street signs in the area were mounted with one of these. Although your plate looks like it's been freshly laid in concrete, I've seen those mounting plates also used on street signs here that have been broken off. They just cut the existing pole down close to the ground then bolt that plate on top, then bolt the other side to it that holds the new pole. |