The 1958 merger by mutual agreement with the City of Warwick removed the political boundary, which was adjacent to Mercury Boulevard. This major north–south roadway carries U.S. Route 258 between the James River Bridge and the Coliseum-Central area of adjacent Hampton. At the time, the county was mostly rural, although along Warwick Boulevard north of the Mercury Boulevard, Hilton Village was developed during World War I as a planned community. Beyond this point to the west, much of the city takes on a suburban nature. Many neighborhoods have been developed, some around a number of former small towns. Miles of waterfront along the James River, and tributaries such as Deep Creek and Lucas Creek, are occupied by higher-end single family homes. In many sections, wooded land and farms gave way to subdivisions. Even at the northwestern reaches, furthest from the traditional downtown area, some residential development has occurred. Much land has been set aside for natural protection, with recreational and historical considerations. Along with some newer residential areas, major features of the northwestern end include the reservoirs of the Newport News Water System (which include much of the Warwick River), the expansive Newport News Park, a number of public schools, and the military installations of Fort Eustis and a small portion of the Naval Weapons Station Yorktown.