In my current area, not allowed to park on street overnight at all (2am-6am No Parking)
In my old town, in the winter I used to keep my boat and trailer on the street...I called the Police dept and asked what the ordinance was and they asked if the trailer had a valid registration tag on it and reflectors. They gave me the measurement limits and I was good to go (by a hair but still legal). They should give you the info if you call up the local PD.