Storm Water Pits and Grates

Example: 450 x 450 Storm Water Pit

Trench Grates Load Chart

Class A		10 kN	Pedestrian precincts only – no vehicular traffic
Class B		80 kN	Footpaths where it is possible for a vehicle to mount the footpath Or for light vehicles such as park tractors to use the facility
Class C		150 kN	Light vehicles with a max. wheel load of 3.7tonne or slow moving delivery vehicles with a max. wheel load of 7.5tonne
Class D		210 kN	Highway traffic at legal loads and speeds
Class E		400 kN	Areas subject to container forklifts or earthmoving equipment
Class F		600 kN	Airport aprons
Class G		900 kN	Airport taxiways

Downloads and drawings

Click on the links below to view the drawings:

1. 450×450 Stormwater pit
2. 600×600 Stormwater pit
3. 900×600 Stormwater pit
4. Side entry pit cover
5. Stormwater Retention Pit