Metropolitan Oval Aquatic Trench

The Metropolitan Oval Aquatic Trench (or M.O.A.T.) was a storm drain system, intended to prevent the flooding inside the Danville City limits, that periodically occurred due to the steep incline of the terrain to the north and west of the city, under winter storm conditions. The concept was two redundant canals, running around the periphery of the city, each able to handle peak water flow. During the design and construction phases, this redundancy was attacked repeatedly by opposition figures, claiming that the excess cost of such a large scale scheme was unnecessary, and was a delibrate attempt to direct council funds into private company coffers. However, not long after completion, a catastrophic dam failure up river created a water surge that would have inflicted significant damage and loss of life, except that the excess water was diverted into both channels simultaneously by quick thinking engineers, saving the city. The excessive water flowing out of the failed dam has required that at least one channel has to be kept open at all times, even under dry conditions, and any wet conditions require both to be open. This has effectively turned the city into an island.
The foresight exhibited by Mayor Roger Doofenshmirtz in ensuring the excess capacity resulted in many plaudits for the Mayor, and it is considered a key decision leading to his election as Mayor for his second term.

Metropolitan Oval Aquatic Trench

The Guardians of Danville quinchance