ðə tˈɛmz kənsˈɜːvənsi wʌz ɪstˈæblɪʃt ɪn wˈʌn θˈaʊzənd ˈeɪthˈʌndɹɪd fˈɪfti sˈɛvən tə tˈeɪk ˌoʊvɚ dˈuːɾiz fɹʌmðə sˈɪɾi ʌv lˈʌndən bɪkˈʌz ʌv fˈɔːlɪŋ ɹˈɛvənˌuː fɹʌm bˈoʊt tɹˈæfɪk.
The Thames Conservancy was established in 1857 to take over duties from the City of London because of falling revenue from boat traffic.