The Northern Territory's drainage is defined by the tropical wet-dry cycle. Darwin and the Top End get monsoonal deluges in the wet season and almost nothing in the dry, so drainage is engineered for an extreme peak rather than steady rainfall.
In the Top End the wet season delivers staggering rainfall in a few months. Drainage here is all about moving big volumes fast and coping with a high wet-season water table.
Each area has its own drainage conditions, tap through for local context and recommended installers.
Darwin's monsoonal wet season dumps enormous rainfall between roughly November and April, then little falls in the dry. Drainage is sized for the…
Palmerston, Darwin's satellite city, shares the wet-dry extremes on largely flat ground where water has little natural fall to drain away. Getting a…
Alice Springs is arid, but when rain comes it can arrive as an intense burst that flat, hard-baked ground sheds rather than absorbs. Drainage here is…