Mission Public Works crews sandbag the harbourfront last Friday in the event of unanticipated flooding.

Flood risk remains as weekend looms

Flood response plan kicks in once water levels reach six metres

Waterfront homeowners and businesses should still remain watchful despite falling Fraser River levels, said Mission’s emergency preparedness coordinator.

Ian Fitzpatrick said Wednesday that although the river level at the Mission gauge is sitting at around 6.1 metres, that level is expected to rise to 6.4 metres or higher this weekend, which is potentially high enough to flood some homes around Silvermere Lake, as well as businesses on the water side of the Silverdale dike at the foot of Nelson and Duncan Streets.

“We are expecting something similar to last weekend,” he said, when water levels peaked at 6.38 metres and caused municipal crews to begin sandbagging on the harbourfront.

Fitzpatrick said areas outside of the diking system are particularly vulnerable to flooding, such as Nicomen Island Road in Deroche where one house began sandbagging Wednesday.

He said flood monitors also found a “boil” in Lane Creek Park at Mission Way and London Avenue and the provincial diking authority was inspecting it Tuesday evening. A boil is usually a hole in the ground beyond a levee where flooding comes from underground seepage. They’re usually sandbagged around the perimeter and then filled with sand.

Dikes along the Fraser River are regulated to handle about 8.5 metres at the Mission gauge, except for the Silverdale dike which is constructed to a lesser agricultural standard and remains at pre-2007 flood protection levels for its entire length.

According to the 2012 District of Mission Flood Response Plan, the emergency preparedness planning committee takes several actions at six metres:

• Potentially opening the district’s Emergency Operations Centre.

• Emergency Social Services and Fraser Health Authority are engaged regarding possible evacuations.

• Daily dike patrols.

• Some isolated low-lying areas not protected by dikes may need sandbagging or evacuation.

• Flood response supplies, such as sandbags, and Mission Search and Rescue equipment are moved from permanent housing on floodplain to temporary housing at Public Works yard.

• Temporary sewage pump is installed on North Railway Avenue.

• Low sections of Mission Dike will be prepared for the installation of temporary dikes or other temporary measures.

• Coordinating with volunteer organizations.

Click for the full map.

Just Posted

Two-year-old attacked by cougar in Cascade Falls Regional Park

Boy not seriously injured in incident on Monday afternoon near Mission

Trial date postponed for man charged with killing Abbotsford police officer

Oscar Arfmann’s trial pushed back from January to May 2019

VIDEO: SUV crashes into Downtown Abbotsford store

Front window of Jazz-Ma-Tazz destroyed in afternoon crash

Publication ban lifted on Letisha Reimer’s name

Reimer’s family had supported an application by The News to lift ban

Mission girl gets her wish to go to Disneyworld

Children’s Wish Foundation, Vancouver Christmas Market and Vancouver Canucks help raise funds

VIDEO: Ex-NASA engineer pranks mail thieves with glitter bomb trap

Package thefts are common this time of year, but YouTuber Mark Rober used his engineering skills

Lightning top Canucks 5-2 in feisty battle

NHL’s No. 1 team too much for Vancouver

Coquihalla closed between Hope and Merritt

The highway is closed in the northbound lane

FortisBC says you can return to normal gas use following pipeline fire

Utility says increased pipeline capacity, warmer weather have allowed supply to reach normal levels

CSIS collected info on peaceful groups, but only in pursuit of threats: watchdog

Security Intelligence Review Committee says fears unjustified after reviewing evidence, testimony

Lower Mainland man receives apology after getting kicked out of library

Mike Wilson fears the same treatment he received Nov. 2 by security guards will happen to others

Canada ranks 16th on annual gender gap list

This is the second year Canada has placed 16th in the World Economic Forum’s list

VIDEO: Tornado rips through city west of Seattle

Reports indicate five to seven homes damaged in Port Orchard, Wash.

Surrey boy’s birthday wish raises $13,500 for rescued farm animals

Matthew Farden received a large donation from the mister Blake Foundation towards a sanctuary farm.

Most Read