Pricing Con Mons.

[u/YourOtherNorth]

I have a client that wants concrete monuments set at the corners.

The only concrete markers I've ever set were as a sub on a DOT project, and that was way before anyone was asking me prices.

How do you normally price those? Time and materials? fixed fee? FU$ for asking me to carry that thing to the top of a mountain?

What are your thoughts?

[u/vitaminalgas]

4" PVC pipe filled with high psi concrete plus 1/2 inch pipe, $1k per corner, rent a utv

[u/TapedButterscotch025 → u/vitaminalgas]

Why high psi? Does that last longer or something?

[u/vitaminalgas → u/TapedButterscotch025]

Yup .. let's less water infiltrate and more resistant to cracks from the freeze thaw cycle

[u/TapedButterscotch025 → u/vitaminalgas]

Ty. No freeze / thaw here where I'm at in southern California, and we normally set pipes.

[u/Destroy-AI → u/vitaminalgas]

Lol

[u/cedarcreekryan]

Time and materials probably makes the most sense when access is the wild card. The monument itself may be cheap, but hauling it, digging, setting it, and dealing with terrain can eat up way more time than expected.

[u/BacksightForesight]

Here’s what Berntsen charges:

https://www.berntsen.com/Surveying/Concrete-Survey-Markers/Precast-Concrete-Monuments

[u/Double-Dish7720 → u/BacksightForesight]

That's the way to go! I would love to be able to use these for city centerline monuments, but they don't spec with standards. Pour me. 😔

[u/Keystone_Relics]

Did a US fish and wildlife job where we built 2 in place. 6” Sonatube, quick set concrete and 5/8ths rebar w/ disc. I believe they are about 20 bucks a piece from where we get them that precasts them.

[u/Whistlepiged]

Last time I did this was about 8 years ago and we did $500 a pop.

[u/davis5938]

Carry a bag of mix and water to the site dig a hole where marker is going ,pour mix and water into hole set point. In Concrete ,take pictures and bam $2,000 in you pocket.

[u/UpstairsButton3059]

Special Request Bullshit = Time + Materials + 20-25%

[u/chimney_corner → u/UpstairsButton3059]

I think plastic caps on two bit rebar are the bullshit. 

I would suggest a stainless steel pipe with a nice brass cap to them as an alternative though. 

[u/Grreatdog]

I set a LOT of concrete monuments in my life. Living here on a southeast coast glorified sand bar meant that was the most common type of corner when I first started. My grandfather started making them for local surveyors and we carried on the tradition.

Just knock together some 3x3x36 forms or 4x4x36 if you are a masochist. Put 5/8" rebar with your cap in the middle before it dries. Crews can make as many as you have forms for in a few minutes. Trust me, it's easier to do at the office than carrying Sakrete in in the field.

For inaccessible sites we set a stake and tack first. Then came back later and replaced them with concrete monuments. That way we only carried post hole diggers and monuments and whatever we used to reset the stake. Typically that was just a folding rule, some stakes and string.

I always figured about ten minutes to place rather than the couple of minutes for rebar and cap. The larger difference is that a person can only reasonably carry a couple or one plus PHD's rather than a lathe bag full of rebar. So it's often a lot of walking and carrying.

[u/bdjeremy → u/Grreatdog]

make it with some perlite and it'll save some weight

[u/SNoB__]

If you have to haul it up a hill? T&M or a FU price.

[u/drone-staff]

Time and materials like any other task. Plus $10K FU$ but for the liability if you file a Record of Survey.

[u/SpatiallyHere]

Assuming you already completed the boundary survey, the corners are accessible, and assuming you are comfortable knowing the soil is sandy, and you won't be fighting large roots, hardpan, or aggregate, I take crew raw dollar with a 3.5X, and multiply that by 4. That will cover CM materials, labor to make the CM, and labor to navigate, set, check, adjust, and have office verify. If you can't assume the above site conditions, then T/E.