Steps to reduce the potential for high water and flooding from a late runoff due to a high snowpack are being taken by the M. D. of Smoky River.
Smoky River public works is working to prevent any major problems that last occurred in 2020, says Larry Doucette, director of operations.
“There is an elevated risk of spring flooding due to the accumulated snowpack and the fact that melting has not yet started,” Doucette says.
“The risk increases as we move into longer warmer days, particularly if the transition from winter to spring occurs quickly.”
Downstream areas within watershed basins are at higher risk as runoff naturally accumulates at those locations, he adds.
“The worst-case scenario would be a rapid warm-up combined with rainfall, especially if overnight temperatures remain above freezing,” Doucette says.
“This would accelerate snowmelt and increase runoff volumes, overwhelming ditches, culverts and low-lying areas.
“Rain falling on frozen or saturated ground significantly increases flood potential.”
He adds suitable weather conditions would help alleviated potential problems.
“The best-case scenario would be a slow, gradual warm-up, with cooler overnight temperatures that allow runoff to be released over time,” Doucette says.
“Minimal rainfall during the melt period would also help reduce the volume and speed of the runoff, allowing drainage systems to function as intended and lowering flood risk.”
Crews have a watchful eye in areas at higher risk, he says.
“Low-lying areas, downstream portions of watershed basins and locations with known drainage constraints are at higher risk,” Doucette says.
“These areas are being closely monitored with crews prepared to intervene by clearing blockages, placing signage or barricades and deploying sandbags or tiger dams if required.”
Municipal crews are busy with various other measures to reduce the impact, he adds.
Crews have been busy opening ditches, roadsides and culvert ends to improve the flow of drainage.
He says he is co-ordinating between public works and emergency services to respond as conditions change.
“Snow removal from critical locations is assessed where it directly impacts municipal infrastructure, such as near culverts, bridge and drainage channels, with the goal of protecting roads, public assets and residences,” Doucette says.
He advises residents can also assist with taking steps to protect public and private property.
“Residents can remove snow around buildings, driveways and private drainage paths where runoff could cause damage,”Doucette says.
“Ensure private culverts and ditches are clear – where legally permitted.”
He advises people to avoid road cuts, as unauthorized cuts to municipal roads are not permitted and carry a $1,500 fine.
“People are also reminded not to travel on municipal roads looking for flooding activity, as conditions can change quickly and pose safety risks,”Doucette says.
Public co-operation is also requested in upcoming weeks as the situation develops.
“By staying clear of work areas, reporting concerns promptly and taking reasonable precautions on private property – plays an important role in managing spring runoff safely,” Doucette says.
Residents are urged to report water accumulation or blocked municipal infrastructure by phoning the M.D. office at (780) 837-2221.
Richard Froese
South Peace News