In fact, it has been argued that the fashion for baths was the major motivation for the building of the aqueducts and the sewers of Rome. Yet in gravity-fed systems that flowed directly into a river, sewers were in danger of silting up unless the water kept flowing. Joseph Bazalgette, future architect of London’s modern sewers, landed his role of Chief Engineer after his superior, Frank Forster, died from overwork. These new sewers brought wastewater to the banks of the Thames, where intercepting sewers, built under the new Embankments, captured the sewage before carrying it downstream to outflow points beyond the city. Modern Sewage TreatmentWhile the sewers removed sewage from London, they simply moved the problem elsewhere.