A hit-and-run accident is complicated, because hit-and-run crashes can result in a driver fleeing and not ever being found. If the driver isn't found, the person who suffered an injury may have to pursue compensation through their own insurance plans, which becomes frustrating. Fortunately, most of the time, hit-and-run drivers are found by police not long after an incident. In those cases, drivers are charged for fleeing the scene and can be held liable for the accident.
When premises belongs to a city, the city should always maintain it. Whether that means maintaining a boardwalk or roadway, it's in the city's best interests to do so. If someone gets hurt due to a hazard that has been reported but not repaired, the city can be held responsible for those injuries.