Alternative monument box

Sounds like you just need the ring and cover from a monument box, maybe like this:

http://www.usfoundry.com/usfoundry-products/catalog/valuebox/productdetails/7622

Not sure how you're going to keep it in place...

More:

http://www.usfoundry.com/usfoundry-products/catalog/valuebox/summary

Add BajaOR suggests, monument boxes have no physical connection to the monument itself - they're just set in place over and around the monument, and the pavement is restored around the box to secure it in place.

The tricky part about fitting a box around an existing monument is having enough vertical clearance. You'll need at least a tenth or two to allow the lid to sit in the frame without contacting the monument cap.

Exactly my problems. How to set it over an existing mon such that it doesn't stick up or come loose as traffic drives over it. I was hoping that someone already marketed a lid with some locking system to keep it embedded in the pavement at a specific depth.

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This is precisely why I don't like surface monuments in roadways.
If you only have a couple of inches of overlay it will be difficult to find something that will hold up to the abuse that being in the road will deliver. I have seen a ring of steel pipe or pvc placed in the asphalt above the point without a lid work but it does fill up with dirt and needs to be mucked out to find the point. I have also seen an adjusting ring and cover just placed in the asphalt. If it were heavy traffic, I don't think that would last too long before it becomes loose and damages something.
Good luck with this and let us know what you end up with.

There is no such animal in roads of NE Texas that I know of and perhaps the rest of the State of Texas.
Witness and reference markers outside of the highway have served to identify the location and I do know of several Headright monuments that have been reset in the grassy margins of highways.
Anyone would be risking their own life and that of others to be out in open traffic lanes without a concrete barrier or collision barrier in place.

The DOT / Public Works department is usually very particular about these types of things due to maintenance and liability issues.

Regardless if you are working for them or working under an encroachment permit - they should be able to provide you with some standard details.

Paul, post: 371516, member: 624 wrote: Exactly my problems. How to set it over an existing mon such that it doesn't stick up or come loose as traffic drives over it. I was hoping that someone already marketed a lid with some locking system to keep it embedded in the pavement at a specific depth.

Here's a standard monument detail from a nearby city. The box itself only goes 12" deep, and that's enough to keep it anchored in pavement. This is basically a standard water valve box adapted to monument use.

I've seen some instances in which the box was located in a traffic lane and trucks kept flipping the covers. That was solved by using a cover and ring with two machine screws, but they're a pain to use because the threads get jammed with grit.

If you've got a source, standard valve boxes like Jim shows above are great for monument enclosure. And an added joy...a lot of the times the overlay crews adjust them thinking they ARE city utility wv boxes. Good all around!

Thanks everyone. It sounds like all the old standbys. I was hoping there was something new that i hadn't seen before.

I recently started working for a county public works department. Their previous surveyor set about fifteen years worth of those Feno mons with the little legs that shoot out the bottom and are impossible to remove without a backhoe or seruous shovel work. These are all in AC. As we overlay, im hoping to keep them in place and accessible. Most of our roads are pretty low speed with minimal traffic, but i haven't yet found a solution safe and effective for my application.

Im envisioning something like a 6" steel ring with a lid, that has a 6" lip along the outside of the ring at the bottom that can be paved over to keep it in place. Ring any bells for anyone?

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I doubt a layer of asphalt alone is going to hold the described mon box in place if it sees any amount of traffic. I have an idea though. Nail the lip down with feno mons:-/

Look at Olympic Foundry for a Monument Case Riser. It is only about three inches high but you will have to knock off the legs of the lid in order for it to fit over the surface mon. I have seen these but beware that the paving crew will have to set them and they get knocked around by the roller and sometimes get moved thus damaging the point its self. If I were you I would file a land corner record form with coordinates and external ties before the project just in case. That way we all win.

Monuments in pavement in snow country have the added attraction of water, salt, ice, and more frequent repaving as well. Durability is always an issue. And some monuments aren't revisited for years on end, so they get paved over and it stays that way. And then addressing the monument-well isn't always included in a paving contract. So it becomes a contract extra, and then a delay, or just paved over before anyone sees it. And many roadways require permits to occupy them.

Monuments in roadways have myriad difficulties, which ends up in lost monuments, lost time, lost money.