B.C. creek buried by construction in the 60s restored - Dozens of ancient waterways across the Lower Mainland served salmon before they were paved over

"That was the methodology of the 1960s and 1970s. It was cheaper, quicker and easier just to put a river in a pipe in the ground and pave it and say, 'we'll deal with it later,'" Cosh said. "Now, it's later."