Crews have been working on fixing a water main break at the intersection of West Main Street and Judd Street since Friday afternoon.
According to police, it all started when a car hit a fire hydrant at around 3:45 p.m.
The break caused minor flooding and residents were left with extremely low water pressure.
City Officials said Waterbury Hospital did not have phone service for 24 hours Saturday and doctors were reached through their cell phones. Their system is now back up.
The Waterbury Fire Department is taking some extra precautions since another hospital is located nearby. St. Mary's Hospital has to maintain a certain pressure for their sprinkler system to work so fire officials sent a tanker truck full of water to be used in case the pressure drops.
People who live in the area call the issue inconvenient, but are relieved crews are working quickly to fix the problem.
"Very low pressure or no pressure at all, yet the city of Waterbury has been working on it," said resident, Kent Goosby.
West Main Street is currently closed between the intersection of Willow and Sperry Streets as workers make the necessary repairs.
Crews are expected to continue their work through the night and into Monday morning.
Police said the driver who hit the fire hydrant fled the scene and has not yet been caught.