There was a prominent surveyor in our city that used plastic caps in the 60's and 70's and we recover them in decent condition all the time.?ÿ Me, I use 2" aluminum caps on 5/8"x30" rebars with aluminum pipe monuments at the boundaries.?ÿ?ÿ
Plastic caps are the norm in NJ.?ÿ There are probably a few thousand plastic cepped rebars with ny license number on them scattered around the state.
Plastic caps on rebar seems to be the norm in Iowa.?ÿ Requiring metal caps is going further than most.?ÿ Heck, I think there are still states that don't require numbered caps/tags at all.
Plastic caps on rebar are ubiquitous in most jurisdictions. Nevertheless, plastic won't survive more than a few years, tops, of the high prairie sun. Even in Oregon I prefer to set them a bit below grade, partly to keep them shielded from the sun. So I can understand that Wyoming would mandate more durable caps.?ÿ ?ÿ
When posting it is a good idea to recall that your audience is a global one, not merely local.
Very rarely encounter anything but plastic caps.?ÿ Most aluminum caps seem to be tied to highway work.?ÿ A few like to use the massive plastic caps with everything except the surveyor's nickname on them.?ÿ 1/2" x 24 " bars or pipe is the minimum and, thus, by far the most common found.
Most plastic caps here are in terrible condition if they are still even on the monument. They crack in the winter, they get hit with mowers, they fade in the sun and fall off. if they are buried they last somewhat longer.
here are some soft aluminum caps that "rust" and they will lose their markings.?ÿ
@mightymoe?ÿ I've been setting them on top of 2' long 5/8" iron rods since 1974. Besides saltwater or 30+ years of direct sun (I set them 1/2" below surface), they last pretty well. Not all plastic caps are created equal. There are quality ones and cheap ones.?ÿ
Never used even one of them, when I first started surveying one of my bosses would set them until a couple of years along and it was clear that they were so substandard and he quit. I was lucky and never even thought of setting one on a rebar.?ÿ
Plastic caps are the norm here in Texas. Granted other types of monuments are set depending on their purpose but plastic caps are most common.
I think the plastic ones can last quite a while if they're buried.?ÿ I mean, isn't that the complaint about plastic... it takes a million years to biodegrade?
Anyway, Idaho is mostly plastic caps.?ÿ Often aluminum or brass on PLSS corners.
Plastic is normally used here, with exceptions for state and federal lands. Sizes vary per agency, also.
here are some soft aluminum caps that "rust" and they will lose their markings.?ÿ
The situation is reversed when you are within the smell of salt air. At the ocean shore aluminum caps deteriorate in short order while plastic caps last much longer.?ÿ?ÿ
I find it funny, thousands of dollars to find out where to put the corner but the budget for the monument is $2 tops!
I almost always set 2? aluminum pipe monuments with 3-1/4? cap. I don??t care for rebar, depending on the soil it can be difficult to get the aluminum cap on there correctly.
