Stormwater is directed along the kerb and gutter to a stormwater entry pit (SEP). In a conventional stormwater network this would then transfer the stormwater to the nearest trunk drain or waterway via a network of underground pipes. In Dorset Avenue, Colonel Light Gardens, the base of the SEPs consist of 20mm aggregate allowing for infiltration into the sub-soil. The SEP is connected to 8.6 m length of 150mm diameter perforated pipe within a 750mm deep soakage trench, located 950 mm below the natural surface level.
The infiltration system within the verge provides passive irrigation and flow management benefits.
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