I have never relied on item 15 for one of these surveys before. I may have an opportunity for an ALTA on 400+ acres (with ?ñ100 acres of the site fairly heavily developed) where this might make a lot of sense.?ÿ
The owner is refinancing and the lender at the last minute said that the boundary retracement we did 4 years ago is inadequate for their requirements for this transaction.?ÿ?ÿ
Do you have any thoughts, tips, suggestions, concerns, warnings...?
Are any of you willing to share contract language and cya notes that you have used on these type of surveys (either publicly here or privately to my e-mail) please?
I reached out to a friend with some experience.?ÿ He said:
Yes. First, the upsides are obvious (time and money), but you need to be able to point out the downsides (precision, shadows, roof lines vs. building faces, resolution, etc.) because there will be things that you would observe and locate on the ground that will not be observed using other methods and that will therefore, not appear on the plat.
Second, you cannot do the boundary (duh) or locate things in close proximity to the boundary, except by ground surveying.
Third, everyone needs to concur in writing that all of this is acceptable to them, and that they understand the limitations.
Fourth, you need a note on the face of the plat explaining all of the above and the date and source of the info you used.
What he said, but also:?ÿ the 2021 ALTA specification no longer requires that all buildings be dimensioned to the property lines.?ÿ That's a big deal for densely-built sites, since field location of buildings not anywhere near property or setback lines is no longer necessary.
Is the client requesting it be done this way or are you thinking about proposing it to make things go quicker?
@bstrand i was just thinking about proposing it to make things go quicker.
I have since backed off.
I may have avoided item 15 for this one. I am probably gonna propose the conventional route and see where we land...
Happy Friday!
Same price, less work, win/win.
Depending on the final use of the ALTA, be it purely for financing or design, the imagery is a nice bonus for the client.
Might be a nice, peaceful project if you do it with GPS and robot anyway.?ÿ 400 acres out in the cool spring sun... ?????ÿ
Depending on the final use of the ALTA, be it purely for financing or design, the imagery is a nice bonus for the client.
Huge bonus! at a very modest cost too.
It's been quite a while... but an Image jumps out and grabs you.
One ALTA I did impressed the Buyer to the point that we did not have to compete financially for a ton of development work later. The profits of that project is a significant part of my current comfy lifestyle.
PS: I also provided an infrared image version.
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There is a web service called Nearmap which provides orthophotos in the 4cm pixel range. There is a fee, but it isn't huge. Photography in my area updated roughly twice a year. Probably limited for actual mapping but makes fine background photos for topos and ALTAs. I have used it for mapping pavement markings.?ÿ ?ÿ ?ÿ
I would do it in a heartbeat. When you set control you can pick up items the drone doesn't, along with ground truthing and crtical design match points. There is no reason you can't provide a reliable oroduct and make very good money doing it. On a job that size you should be able to roll in the drone purchase, training and software and still make $$$.
?ÿWe use Nearmap and pay for the updated imageeray as it rolls out. the?ÿ GSD provided can vary widely on the areas, so definitely check before you purcahse.?ÿ My other beef is they have lots of seam line errors and even oblique when quoted ortho shots which could wholly screw up everything.?ÿ
I used to work for one of the semi-big aerial collection companies, and the data might even exist in your local counties or states and be provided if you can find the right contacts.?ÿ Those usually were flown at 3in GSD and as Mark mentioned the newer sensors can collect at smaller, but its cost is usualy prohibative if its a one off operation.