Why do we...

It's like the WPA monuments around here. I think they had folks chaining the highways for work in the 30's. The monuments have stations and everything, but bear no relation to anything.

Now, there was ONE time that the monument had the station on it and I had to use it as it was the end of the highway during the WPA project and then later they extended the highway.

One out of 1000 times I needed one.

Baseline USE monumentation along the ICW in my area is all but gone. I attempted to tie and only found crumbled remnants in the saltmarsh. 🙁

It would be worthwhile if they were tied to a common frame of reference...

In my area there are several significant COE lakes. Two were planned in the late 1930s and from information that was a combination of existing deed calls and scaling from other sources and taken with metes and bounds that did not fit everything on the ground. The boundaries were run by numerous surveyors with instructions to put this on the ground. Many monuments marking fee boundaries and flowage easements were placed at mathematical locations and at times do not reflect a proper location. Overall, most monuments are in the proper place. Any record of who did what is not public record and/or not known at all.

On the ground, I have found original monuments that were set in place before COE set their "newly" placed monuments to be in different location by a few feet to hundreds of feet.

In all cases, the COE claims ownership to boundaries in relation to location of their monuments. Any other monuments are not accepted.

So, around here, the public has to accept their location for use of land until someone wants to sue the government.

BTW, I always show any known boundary where it is found and any COE boundary out of place where if falls.

snoop

"""I find this all of the time. These monuments typically have no significance to the job. They normally are not referenced by the USGS or FEMA. It seems like when a surveyor finds one we feel the need to show them on our plats even though they have no relation to anything we are doing. I don't know why we do it. Maybe just because they look important.
"""

Snoop, i will measure to almost any monuments of greater stability than my own network. our control is generally GPS/GNSS derived. sometimes precast markers, sometimes rod and cap, sometimes crosscuts on curb. if i find a cast in place monument, my measurements to it can make that marker an "accessory" to my network. right?

Snoop enquiring mind....

As a surveyor used to tying into coordinated reference marks here in SOZ I was wondering how well the marks are constructed. Ie are they brass plugs set in a large deep concrete block? Are they in locations unlikely to be disturbed? Are they marked with protective witness markers?

RADU

> feel obligated to tie to US Army Corps of Engineers monuments?

They are usually pretty solid monuments. The more of those your survey ties to the easier it is going to be to follow your footsteps.

Why do we...Mark

That was going to be my point.

Local surveyors should share coordinates for these reference marks ( given that you do noy have a central repository that stores the info) so can all tie their surveys into common denominator permanent survey marks.

RADU

snoop

:good:

CV

I treat them as accessories to my survey. Just like turning sets to radio towers or other landmarks. If the COE monuments are substantial monuments then why not use them as part of your cadastral survey? They may not define any boundary line but can be an aid to recovering your survey marks at some later date.

Why do we...Mark

> ... given that you do no(t) have a central repository that stores the info)...

In Oregon, and the 14 other "recording states", we do have such a repository.