definition of LF 2

[cvg]

Specs read as follows for measurement and payment of storm drain pipe installed in public right of way:

"Shall be the number of linear feet of pipe laid as measured along the pipe axis."

Is the pipe length measured horizontally (plan dimension) or along the slope of the pipe?

My opinion is that it is generally measured in a horizontal plane at the ground surface, but the debate here in the office is that it is actually supposed to be measured along the alignment of the pipe. I have not seen this alternative method of measurement done and don't believe this is the commonly used method of measurement.

 

[cvg]

again, I want to make sure I am clear. I am not looking for a way to underpay a contractor. Nor am I concerned with a court case. In fact, for our estimates, it is more likely that the quantities will be over-estimated and the contractor will be overpaid.

 

[rbulsara]

cvg:

I am glad you cleared that up. Cheers!

 

[Hoagie]

I would whip off a memo, or an addendum, to the contractor/s informing each what YOUR definition of LF is. This way there will not be any confusion about the unit....and then maybe, just maybe, you may just get some sleep tonight.

 

[HawaiianMarine]

Most utility design done by "sophisticated" design firms is done in 3D. This allows the exact pipe quantities to be summed. Are there really firms out there still designing in 1D? It's 2008 people!

Come on bimr, pipelaying itself is an exercise in trigonometry. But of course you can't find that in the dictionary.

Sincerely
Your local "unsophisticated contractor"

 

[coloeng]

HawaiianMarine

I have yet to see any designs that are done in 1D. There are many firms that still design in 2 dimension. For many applications 3 dimensional design is overkill, IMO.