sewer networks
Subterranean waste channels
Sewer networks are systems of underground pipes and tunnels that carry wastewater and stormwater away from buildings and streets.
The term emphasizes the interconnected infrastructure rather than individual pipes: The city's aging sewer network needs billions in repairs.
Combined sewer networks handle both sewage and rainwater; separate systems keep them apart.
- manholesStreet-level underground entries
- underground tunnelsEnclosed routes below ground
- effluentDischarged liquid waste
- sewageLiquid refuse in drains
- pumping stationsFacilities that move fluids
trenching · catch basin · sludge · septic tank · city infrastructure · drainage systems · filtration · chlorination · grates · eutrophication · junction boxes · waste treatment · drains · storm drain · wastewater · mains · treatment · runoff
water management approach
sewer networksopen channels
Unrestricted communication paths
storm drains · culverts · streams · rivers