Using another engineers drawings
Using another engineers drawings
(OP)
I have been asked to prepared an as-built set of plans for a subdivision which included water and sewer installation. The company I used to work for prepared the subdivision/water/sewer drawings. The town is requiring the details on the as-built plans to match what was originally submitted. The owner would like me to prepare the drawings because my fee is less than the other engineer. It is acceptable for the owner to request the CAD files from the other engineer and then forward them to me to have me include them on my title block and have me stamp them?





RE: Using another engineers drawings
RE: Using another engineers drawings
RE: Using another engineers drawings
RE: Using another engineers drawings
I guess my question is if the owner forwards me the files it is acceptable for me to put them on a plan with my title block? I will leave it up to the owner to request the files.
RE: Using another engineers drawings
Usually an engineer's seal is placed on the design set of plans which is used to bid and build the design elements.
Once they are built - a record set (or as-built) can be prepared to document what happened. These record sets are typically not sealed as the engineer-of-record had already previously done that and taken responsibility for the design.
Your task and services are not really "engineering" and don't require a seal in my opinion.
Now as to putting this information on your title block - I don't see a problem. Usually with record drawings I would include a statement that indicates that the information on the sheet was provided by others and there is no guarantee that all the information is correct as you didn't generate that information. So you are simply reflecting information on your drawings (on your title block) that others gave you and you are properly indicating that.
Check out Eng-Tips Forum's Policies here:
FAQ731-376: Eng-Tips.com Forum Policies
RE: Using another engineers drawings
I just want to make sure it is ok for me to use the CAD files provided to me by the owner on my title block.
Thanks for the help.
RE: Using another engineers drawings
Our title blocks have a disclaimer about the drawing being confidential information and proprietary right being involved and rights to reproduce etc. are reserved... Not sure how legally enforceable that is but just pointing out that if you get one of our drawings, unless we give you explicit permission to do so, reusing our files might make us unhappy and even lead to legal issues.
Additionally, if you copy then you will now be liable for any errors in the CAD files right?
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?
RE: Using another engineers drawings
You are preparing As-built drawings, not design drawings. I know of few, if any engineers that would take issue to you using their CAD files as a basis for as-builts. However replacing the engineer's title block is a no-no. Add to the title block that the new drawings are "As-Built" and adding your name and contact should be acceptable.
As for signing, I would avoid unless absolutely required by the city; even then a note should accompany your signature to the effect that the design is not yours. With as-built drawing you shouldn't be certifying the drawings as being any more than accurate to what was installed as a record of variance from the design drawings.
RE: Using another engineers drawings
RE: Using another engineers drawings
RE: Using another engineers drawings
Even if you were the engineer who did the original drawings, you did the work for your previous employer. You were paid by your employer for your work and you do not own those drawings.
---
The only thing I can say that would be ethical would be if there were no changes in the design from the original drawings, the OP could state in his construction report would be that "As-Built" drawings were not needed because there were no deviations from the original design.
RE: Using another engineers drawings
In previous employment, we did just that. We supplied our customer our CAD files as deliverables, and the client stated that they like having them for updating with as-builts and future renovations / building changes / additions. They're willing to pay for deliverable CAD work and we supplied them with just that. If it wasn't part of our contract, and we were asked, after the fact, if we would supply them, it'd be a purely discretionary consideration. How much money is in the CAD work? Does it compromise our standing in any way? Does it help the competition or undercut our future prospects in any way? Some people are just much more "possessive" of CAD files than others, I find. I personally don't much care. My previous employer was very proud of our CAD department and we did great work, but at when the job is done and our contract is fulfilled, the CAD files are just archived - if the client gets more use from them, then good for them. I believe there was some standard boilerplate to effectively remove liability of incorrect CAD data and that the stamped drawings were the governing authority in case of any discrepancies.
I hope that clarifies my contingent "yes" response.
RE: Using another engineers drawings
I was asked several years ago to be the EOR on a condo project that my former boss from years earlier had been involved with aw the EOR. He and the client had a falling out. I contacted him and we had a frank, productive discussion. I received his blessing to proceed, with a warning regarding the client's history of non-payment. The warning was very helpful to me in that I did get paid after taking precautions.
Mike McCann, PE, SE (WA)
RE: Using another engineers drawings
cvg above has it right - unless you actually did the design then you should not - and legally can not - sign them.
Cities, owners, etc. many times ask for a seal without knowing anything about the engineering laws or what that seal really means.
Many believe that the seal somehow provides additional quality or additional assurance that things were done right.
I do like the idea suggested of leaving the old title block on there and just adding a note block in the corner that states:
1. Your firm (or you) prepared these plans by incorporating data from others into the originals to produce a record set.
2. The data from others was not verified in the field by you and therefore you cannot certify that the data is fully correct.
3. The original engineer of record was: <list the name of the EOR and their firm>
4. No new engineering design was performed in the process of creating this record set of plans.
Check out Eng-Tips Forum's Policies here:
FAQ731-376: Eng-Tips.com Forum Policies
RE: Using another engineers drawings
At least to me, that does satisfy the original intent of direct supervision.
Mike McCann, PE, SE (WA)
RE: Using another engineers drawings
RE: Using another engineers drawings
If so the original construction is complete and there is no "checking" to do unless the owner wanted a peer review....which was not stated and is certainly not a part of record drawing preparation.
So any review and stamping to me is ridiculous during a record drawing prep.
jimtheengineer10 - could you please clarify here? Is the construction complete?
Check out Eng-Tips Forum's Policies here:
FAQ731-376: Eng-Tips.com Forum Policies
RE: Using another engineers drawings
You are right - it is for an as-built set, not an in progress design. My bad.
That being said, I do not see the cost differential here. It would seem to me that the cost to produce such drawings would be far cheaper if it were done by the engineer most familiar with the project and who had the CAD backgrounds to use.
I think there is something else going on here in the background.
OP: Did you originally work on this project for the EOR so that you are familiar with it too?
Mike McCann, PE, SE (WA)
RE: Using another engineers drawings
Essentially what JNieman said.
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?
RE: Using another engineers drawings
Most times drainage items in particular are not built correctly. As a part of the as-built certification the as-built elevations and volumes of say detention ponds and associated inlet and outlet structures that are not built correctly could adversely effect the drainage calculations. Also since detention ponds are often designed with rather tight tolerances these small changes can effect the drainage calculations and results.
The contractor who built these items in this jurisdiction was required to put up a construction bond prior to beginning the project. If the drainage calculations and results could not be reproduced with the as-built numbers the contractor had the option to fix the problems so the calculations would reflect conformance with design intent therefore allowing me or whoever to stamp a statement saying so or they could forfeit their construction bond and the jurisdiction would use the bond to pay someone else to fix the items until it could be certified.
RE: Using another engineers drawings
I have my own details for water/sewer line trenches, shutoffs, catch basins, etc. that contain the same information but are obviously drawn different and have some different notes. However, the town said they want the as-builts to include the exact details shown on the design plans which is the details the other firm prepared. Same question as above, should I just leave their title block on the plans? Should I include my title block?
My client has made it clear that he likes the work the other firm does but doesn't like their fees. He wants to build a working relationship with me, which is why he asked me to do the as-built drawings.
RE: Using another engineers drawings
Yes - leave their title block - they were the engineer of record.
No - don't use your title block as a replacement for the original. You can, and probably should, identify you or your firm as the preparer of the as-builts in a boxed in note on the plans.
Yes - if given to you by the client/owner as long as you don't re-engineer anything and only use it to incorporate the as-built information given.
The only unethical thing about this would be if you had approached the client and convinced them to use you instead of the other firm when it was their project to begin with.
If the client approached you then I think it is OK ethically.
Check out Eng-Tips Forum's Policies here:
FAQ731-376: Eng-Tips.com Forum Policies
RE: Using another engineers drawings
I believe we got the City to allow us to update the design drawings with as-built info but not stamped as a normal design drawing would be. There was a stamped letter involved after review that the as-built info reflected on the as-built drawings was in conformance with the design intent which was verified by updating calculations with as-built info. And there might have actually been a statement stamped on the drawings reflecting that the drawings were reviewed and conformed to the original design intent with the reviewing engineers stamp and signature. Any calcs originally submitted with the drawings would have to be resubmitted with updated info to actually back up the stamped statement. I know that in my case water and sewer review/calcs were not submitted to the City but to a public utility. So only storm calculations mattered to my submittal with the city which I know varies from location to location.
But, unless you or your representative was onsite during construction I don't see it as feasible to be certifying details of what was built for below grade construction that is not readily accessible.
If the original submittal to the Town included water and sewer plans and even calculations I would certainly try to verify sewer minimum slopes and pipe sizes were met. I'm not sure water items could be verified unless you were onsite to verify installed pipe sizes. You might also consider updating any calculations associated with water and sewer if they were submitted and approved by the Town originally.
If the town you are working for owns the CAD drawings then I would think they could do what they wanted to with them. I wouldn't see a problem with updating what they give you with your title block but I'm not a lawyer. But I would want to verify that the calculations were still reflective of the original design intent. To me that would essentially put you in responsible charge of that as-built work verification but that might also be a lot more verification than you planned on when you gave them your price for the work.
RE: Using another engineers drawings
RE: Using another engineers drawings
Stamping a plan amounts to saying, "If you build it like my plans and details, it will work as it should; I bet my house on it". That's not the same thing as stamping an as-built, which amounts to betting your house on some contractor's work, even if you can't see what the contractor actually did.
That's my outside perspective; most of my work has been in manufacturing, where the product as built had damn well better look exactly like the design documents say it should.
Mike Halloran
Pembroke Pines, FL, USA
RE: Using another engineers drawings
I missed the part where someone was going to simply claim these drawings were as-built. I understood the idea was to use them as the starting point for the as-builts, in order to make them similar and easy to compare.
You'd have to be crazy to plan on starting from scratch to do as-built drawings, unless what was built bore no resemblance in any way to what was designed. In my opinion.
RE: Using another engineers drawings
Even pictures taken by the contractor can be problematical as you are trusting certain factets here, when you should have direct observation.
This is really an exercise in futility without continuous review and documentation during construction by you.
Mike McCann, PE, SE (WA)
RE: Using another engineers drawings
The rest of it sounds squirrely to me. I want to buy a Ford, but I don't like what Ford charges for it. So I'm going to get Ford to give it to you for free, and then you're going to sell it to me for half-price. Or am I missing something there?
RE: Using another engineers drawings
RE: Using another engineers drawings
That being said, you need permission, either directly or through your client, to use and make money from the cad files otherwise you may be in breach of copyright law.
RE: Using another engineers drawings
RE: Using another engineers drawings
RE: Using another engineers drawings
Look at your agreement when you signed up for the cloud.
RE: Using another engineers drawings
If you want to be very clear about the ownership of the design, you could take their drawings, scan them, and then redline the differences by hand. That will make it very clear the difference between your contribution and their contribution to the set of drawings. Copyright is basically about representing someone else's work as yours.
Fun story - I was in a court case once, where I drew up a figure critiquing another engineer's work, based of CAD that we obtained from a municipality via a legal and documented Open Records Request. My figure clearly differentiated between my linework and their linework, and was merely highlighting a critique of their work. They threatened to sue me for copyright infringement for displaying this figure in court. Then, after the hearing, they demanded that I redact my testimony or they would sue me under X and Y provision of this law or that. I asked them how they expected me to recount testimony given to the state judge under oath without being forced to confess to perjury, and they couldn't figure that one out. Whole thing went away. They were basically trying to find any dirty trick possible to scare away expert testimony.
Oh, wait, yeah, that wasn't actually a fun story at all.
Hydrology, Drainage Analysis, Flood Studies, and Complex Stormwater Litigation for Atlanta and the South East - http://www.campbellcivil.com
RE: Using another engineers drawings
Check out Eng-Tips Forum's Policies here:
FAQ731-376: Eng-Tips.com Forum Policies