off topic - maybe?

Glen Aspen_2 · June 2009

Chicago rod, or Frisco rod - as they pertain to surveying, would any of you have the historical info? Just curious? How they came to be named such, is it somehow related to the three major surveys done across NA in the 1800's?

John@Reliable_23 · June 2009

This will help you...............

http://www.tpub.com/content/engineering/14069/css/14069_397.htm

Maine Ken · June 2009

A Chicago Rod is a unit of land measure that is extremely crooked.

A Frisco Rod is a unit of land measure that constantly bends to the left.

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Glen Aspen_2 · June 2009

thanks -

but the reason I ask is that here in Canada the terms are not known - but still show up in various training materials. Even to my son inlaw (geomatics engineer)- the terms are unknown. Which leads me to wonder if they have significant historical importance dating from the railway construction days of the late 1800's. Just thinking out loud I guess.

Unknown · June 2009

and the Maine rod..

Is straight and pure? I do agree with the Chicago rod as im from the area...

bill nye_3 · June 2009

rods and chains

I found this,

http://www.math.ucr.edu/home/baez/inches.html

I remember reading about early surveying and was amazed at the task of map making etc.

Maine Ken · June 2009

rjbphd, easy now. Tongue firmly in cheek.

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off topic - maybe?

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