 The latter begins at St. Paul Street a short distance south of Seneca Park Zoo and heads eastward as a city-maintained street, carrying NY 104 Truck through a residential section of the city.East Ridge Road crosses into the town of Irondequoit just east of Seneca Avenue, at which point it becomes county-maintained as CR 241.NY 104 Truck leaves to the south at Hudson Avenue, the first major intersection East Ridge Road has in Irondequoit.