Stormwater Catch Basins

What are stormwater catch basins made of? 

Our basins are manufactured from high-density Polypropylene (PP) plastic, offering a lightweight yet structurally superior alternative to traditional pre-cast concrete. This material is naturally resistant to the corrosive elements found in runoff, such as road salts, nitrogen from fertilizers, and hydrocarbons, ensuring a decades-long service life in the ground.

What load class is required for stormwater infrastructure? 

Because stormwater basins are often installed in swales, curbsides, or green spaces, load requirements vary significantly. For landscaped areas, Class A (Pedestrian) is sufficient; however, for basins integrated into roadway curbs or paved areas, a Class C (25 tons) or Class D (40 tons) is required to meet municipal transit standards. View our full engineering specifications here:

https://vodaland.ca/pages/load-classes

How does the stackable basin system aid in stormwater design? 

Stormwater piping is often buried deep to maintain the necessary pitch for gravity-fed systems. Our stackable basin system allows engineers to reach these depths without the need for heavy lifting equipment or cranes. By stacking units and removing the internal floors, you create a deep-sump manhole or junction box. We recommend a high-grade silicone or bitumen seal between sections to ensure the system remains watertight against groundwater ingress.

How do I maintain and clean stormwater basins? 

To meet environmental regulations and prevent downstream pollution, regular "source control" maintenance is required. This involves lifting the grate to empty the internal debris basket, which captures organic matter (leaves/sticks) and litter. For fine silts and heavy metals that settle at the bottom, we recommend periodic removal with a vacuum truck or manual scoop to ensure the basin's storage capacity isn't compromised.

Where are these catch basins typically utilized in a site plan? 

These units are the "first defense" in urban runoff control, highway drainage, and residential subdivision planning. They are strategically placed at low points, curb inlets, and at the end of bioswales to collect water before it enters detention ponds or municipal storm sewers. Their primary role is to regulate water volume during "100-year storm" events and filter out large pollutants that could damage the local ecosystem.