Every year, Engineering and Public Works prepares for the possibility of flooding. Preparations include updating the flood plan, practicing repair and mitigation measures and training personnel.
The City of Coquitlam has an extensive flood response plan that includes:
- Assessment of flood risk areas
- Daily monitoring of river levels
- Evacuation planning
- Flood action plan
- Flood preparedness
- Flood risk assessment
The City of Coquitlam monitors both the Pitt River and Fraser River during times of potential flooding. An assessment of the flood protection measures that are already in place or can be added to reduce the impact of floods has been completed. This assessment includes a review of existing dikes and drainage systems, as well as a review of the properties and buildings that may be below the flood level.
Response Measures
Coquitlam’s flood action plan includes measures to respond to either a three- or four-metre flood level. Primary response measures include:
- Stop logs to block Nelson Creek and Como Creek to prevent flooding north of United Boulevard.
- Temporary pumps installed in-stream to pump creek flows over the stop logs.
- Sand bagging in targeted areas to limit extent of flooding and protect critical infrastructure.
- Possible road closures.
Daily Monitoring During Increased Risk of Flooding
City staff will closely monitor reports from the Provincial Ministry of Forests, Lands and Natural Resource Operations - River Forecast Centre which provides updates on river levels and flood risks as well as reports on the snow packs across the province.
City of Coquitlam Flood Preparedness
In addition to assessing existing flood protection, the City of Coquitlam is prepared for possible flooding by having on hand items such as sandbags, temporary portable dams and pumps that can be used to redirect water flow.
City staff regularly clears culverts and inspects dikes to ensure there are no blockages that would prevent proper drainage. Before the spring freshet, staff will inspect all dikes, critical intakes, outfalls, culverts, and catch basins to ensure they are functioning properly.
When a rain storm is forecast, during significant rain storms and after snow falls when the melt is occurring, staff will continually check the critical intakes, outfalls, culverts and catch basins to ensure they are clear.