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Hub Guard or Hubguard

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Strictly Surveying

Last Post by holy-cow 5 years ago

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holy-cow

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Hub Guard:?ÿAn angle, plate, etc., on corners of concrete, masonry, and similar materials, where vehicular traffic passes, to protect them against injury by the rubbing of wheel hubs.

?ÿ

Common wheel hub assembly

A?ÿwheel hub assembly?ÿ(WHA), also referred to as?ÿhub?ÿassembly,?ÿwheel hub unit,?ÿwheel hub?ÿbearing, etc., is an automotive part used in most cars, passenger vehicles, and light and heavy trucks.

OK, boys and girls, here is the question:?ÿ When was the last time a wheel hub actually contacted a hub guard in normal driving??ÿ The side of the tire or the wheel rim or possibly a wheel cover (hub cap?) could do so.

No one seems to know what a hubguard is or what its intended purpose is.?ÿ Yet we find reference to them in all sorts of surveys.

A current project has a set of plans from 1959 where the only benchmark provided is a square chiseled into the north end of the west hubguard on a small culvert under the roadway roughly 400 feet north of the nearest corner of the site.?ÿ There is nothing resembling any form of hubguard present today, although the culvert is clearly the same one present in 1959.

Posted : June 27, 2021 9:19 pm

jitterboogie

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Hmmmmm........

???? ?????ÿ

Posted : June 27, 2021 9:32 pm

Skeeter1996

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We use to put three guard stakes around hubs that were angle point interesections in p-line road traverses, hence called hub guards.

Posted : June 27, 2021 10:34 pm

Mark Mayer

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The BM being a square chiseled into it suggests to me that a hubguard must be made of stone or concrete. Possibly what we would call a bollard today?

Posted : June 27, 2021 10:39 pm

bill93

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And there sometimes was the felloe guard.?ÿ

Posted : June 28, 2021 5:07 am

husker796

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I would say it's a curb. Not necessarily concrete but could be. I'm thinking it's an old term referring to guarding an object or structure (IE a fence) from the hub of a horse drawn cart or buggy with protruding hubs. Or something similar. Most likely more of a short wall or tall curb??ÿ

Posted : June 28, 2021 9:27 am

Norman_Oklahoma

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Search the area for a chiseled square.?ÿ Whatever you find it on - that's a hubguard ???? . Be sure to post a picture.

Posted : June 28, 2021 9:53 am

FL/GA PLS

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No such thing as ??hub protection? in construction surveying short of a D6T sitting over it. ?????ÿ

Posted : June 28, 2021 10:07 am

dmyhill

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@flga-2-2?ÿ

I remember being yelled at one day for a grade being incorrect on a stake...of course the cat tracks over it had nothing to do with it.

Posted : June 28, 2021 10:38 am

holy-cow

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@norman-oklahoma?ÿ

We looked at what concrete there was to search.?ÿ Nothing.

Turned out there was supposed to be a square cut on a specific short run of concrete at the Water Plant we were working on.?ÿ Found it.?ÿ Matched up with a reference bar that had been set on a project at a nearby C&D landfill.?ÿ Then we shot in via GPS.?ÿ The number was 0.46 higher than before as it was in NAVD88 instead of NGVD29.?ÿ The typical difference in this area runs around 0.42 to 0.47 feet.?ÿ We then proceeded to shoot everything in using a level.?ÿ The 25-foot rod worked like a charm, both outside and inside the building.

Posted : June 28, 2021 6:36 pm