COQUITLAM (NEWS1130) – We now know what was behind a major traffic headache in the Tri-Cities.

A portion of the Evergreen Line at Como Lake Avenue and Clarke Road shifted early this morning; Coquitlam’s mayor says a temporary support at a corner of a section of guideway that shifted gave way.

Richard Stewart says the permanent supports that will be put in are much stronger.

“This particular section of guideway is slightly longer because it has to go across five lanes of roadway; that makes it a little bit heavier. It’s also curved. So, the outside corners would carry more weight. It’s one of those that gave way,” says Stewart.

RCMP say they got a call about a loud bang in the area around 1:30 a.m.

“These are large pieces of concrete and obviously posed a great danger,” said Staff Sergeant Rob Lemon.

Como Lake Avenue remains closed between Clarke and North Roads.

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