Does the London Avenue Canal or  Riverside Canal run through the 4th ward?
London Avenue Canal The London Avenue Canal is a drainage canal in New Orleans, Louisiana, used for pumping rain water into Lake Pontchartrain. The Canal runs through the 7th Ward of New Orleans from the Gentilly area to the Lakefront. It is one of the three main drainage canals responsible for draining rainwater from the main basin of the city of New Orleans. The London Avenue Canal's flood walls built atop earthen levees breached on both sides during Hurricane Katrina in 2005.
Picketts Lock Pickett's Lock or Picketts Lock is an area of Edmonton, in the London Borough of Enfield. It is bordered by River Lee Navigation to the east, Pickett's Lock Lane to the south, Meridian Way A1055 to the west and the Ponders End industrial area to the north. The area takes its name from Pickett's Lock, a lock on the nearby River Lee Navigation.