INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Member Login

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips now!

Talk With Other Members
Be Notified Of Responses
To Your Posts
Keyword Search
One-Click Access To Your
Favorite Forums
Automated Signatures
On Your Posts
Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

LINK TO THIS FORUM!

Eng-Tips LinkedIn^® Group

Join our
LinkedIn^® Group!

Hook up with past and present colleagues and classmates quickly.

Partner With Us!

"Best Of Breed" Forums Add Stickiness To Your Site

(Download This Button Today!)

Feedback

"...I am very impressed with the site and have already recommended it to one of my associates. I was truly impressed with the quickness in which someone actually responded to my question..."

More...

Geography

Where in the world do Eng-Tips members come from?

Click Here To Find Out!

Eng-Tips Shirts!

Get your
Eng-Tips Forums
SWAG here!

Home > Forums > Engineering Forums by Industry > Constructed Items > Bridge engineering Forum

Who designs cofferdams - EOR or Contractor?

Read More Threads Like This One

JennyNakamura (Structural)

17 Apr 12 21:33

Hi everyone,

When cofferdams or some other kind of stream flow diversion is required for bridge foundation retrofitting, are they designed by the engineer of record and shown on the contract drawings or are they designed by the Contractor (or his specialty engineer) like would be the case with scaffolding or falsework?

Thanks in advance...

davidbeach (Electrical)

17 Apr 12 23:11

Not a bridge engineer by any measure, but I've always been aghast at turning perfectly good, billable engineering work over to construction contractors.

bridgebuster (Civil)

18 Apr 12 7:08

NYSDOT leaves it up to the contractor. The thought being that since it is a temporary structure a contractor may have materials on hand or is more confortable with a particular type of system.

PEinc (Geotechnical)

18 Apr 12 10:13

The contractor's engineer usually designs the cofferdam. That way, the cofferdam and bracing scheme will accommodate the contractor's construction methods.

www.PeirceEngineering.com

cvg (Civil/Environmental)

18 Apr 12 20:26

usually contractor designs. As the EOR, I usually give some minimum requirements or even a preliminary design to minimize the liability and to make sure each contractor is bidding a similar concept. contractor is then required to submit his final design for review by the EOR.

gwynn (Structural)

19 Apr 12 21:11

I agree with PEinc. As someone who spends most of my time doing construction engineering, even if the EOR supplies a design for cofferdams or other temporary works, chances are the contractor will have someone else redesign it to suit their preferred construction methods/available equipment/available materials. So if you do design it, be prepared to spend time reviewing alternate concepts.

PEinc (Geotechnical)

23 Apr 12 13:03

When a contractor redesigns the cofferdam, in effect, the project owner is paying for two designs - one of which isn't needed.

www.PeirceEngineering.com

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!

Back To Forum

Back To Bridge engineering