Canvey Island barriers spanning Benfleet Creek to the north and East Haven Creek in the west. The drainage system consists of sewers, culverts, natural and artificial dykes and lakes which feed seven pumping stations and gravity sluices that discharge the water into the Thames and creeks. Four of the discharge sites are "high flow" stations capable of discharging 600 litres of water per second at any tide level. The levels within the system are managed by a further five "low flow" pumping stations. The Environment Agency's Thames Estuary 2100 flood defence plan includes Canvey Island as one site for alleviating the flood
Canvey Island island's internal services via the town centre, and provides services to places such as Southend, Basildon and Bournes Green. Nibs buses run the 21C bus from Canvey to Hadleigh via Essex Way. Both bus companies provide services to Benfleet railway station, which is located close to Canvey Bridge, just north of the island. The railway station has a taxi rank. Train services are provided by c2c between London Fenchurch Street and Southend Central/Shoeburyness. Canvey Island has two comprehensive schools: the Cornelius Vermuyden School and Castle View School. Both were built in 2012 as replacements for the island's three ageing comprehensives,