Index & Notes

Pipe material map again

And more important, we had the political capital, from all the main breaks and their costs, to force our powerful developer community to switch to it as well.

As the yellow in this map shows, we put in over 600 km of YDI between 1973 and 1982. After 600km, most of it in 8 years, all Calgary contractors were slow, methodical pipe installers and it was normal for Calgary construction inspectors to be demanding and ruthless.

© Roy Brander, P.Eng 2003