Sidewalk Closed to Facilitate Oyster House Reconstruction. The Oyster House restaurant is in the process of demolition and reconstruction of the restaurant building. This construction activity will require the closure of the 4th Avenue sidewalk between Sylvester Street and Water Street. The sidewalk closure will begin on August 30, 2013 and anticipated to be completed by the end of February 2014. Access to the boat ramp and boat dock will remain open. Please obey the pedestrian detour signs for your safety and the safety of the workers.