Some places are narrow due to sinkholes being blocked off by protective fencing, and the Captain Patrick J. Brown Walk squeezes between the highway and the dock of Con Edison's East River Station, requiring slower speeds. Other parts are shared space with motor access to Waterside Plaza (at Stuyvesant Cove Park), or a filling station. Approximately a mile near the southwest end is in the shadow of the elevated FDR Drive. This part is to be improved by the East River Esplanade project.