Braid: The Bearspaw water line came with a big shiny promise that turned out to be false
When Calgary’s giant super-soaker water pipe was installed in 1975, nobody dreamed that the concrete would someday decay, wires would snap, and water would burst out. “I recall having discussions as late as 2000 saying that the concrete is so passive that soil just can’t corrode it,” says Roy Brander, who retired from the city […]