When Pierre L’Enfant set out to design the capital city for the newly independent colonies at the direction of George Washington, he had a single idea: design the city as a metaphor for the country. That is, if this new country was to succeed, individual states had to become united. After deciding on the location – between the northern and southern states, and on a defensible, navigable river – and with Washington’s brilliant scheme for purchasing the land from about 15 farmers with little actual funds – landowners would donate half their land with the understanding that the remaining half would double in value – L’Enfant’s vision was simply to design a metaphor: as the states are to the country, the districts would be to the city.
Surveying the site, L’Enfant determined that the waterways and their prominent banks would be the locations for important places. The three branches of government were located first. The Congress House (Capitol) was placed on Jenkin’s Hill and oriented west on line with Tiber (Goose) Creek that fed into the Potomac River. The President’s House (White House) would be on the northern bank of the Tiber oriented south toward Washington’s home Mount Vernon. Both sites were developed as planned. The judiciary branch's building site (unrealized) was to be between the executive and legislative branch building sites, but not directly linked symbolizing its independence.
L’Enfant then located 15 squares on the elevated banks of the existing waterways about a half a mile apart, which is the distance a person can see unaided. Each of the states at that time were assigned a square with the six northern states in the northern part of the city, the three central states in the center, and the five southern states in the southern portion. Each state would then develop the land around their square following their particular interests with housing, churches and businesses. The squares were connected with broad avenues named for the states. Looking down an avenue from one district to the next would be the visual link that united the state's districts and created a united city. The rest of the urban plan was subdivided into four quadrants centered on the Capitol (originally its public plaza, but the building was moved to this center place) with lettered and then one, two and three syllable names for streets to the north and south, and numbered streets to the east and west.
Today, the grand diagonal avenues named for the states remain and more were added as new states entered the union. The interior waterways whose elevated banks provided prominent elevations for the squares have long been filled and covered, although sometimes the subsurface hydraulic pressure causes wet basements, and requires continuous pumping for monumental buildings such as Union Station. The districts that were meant to develop around the state’s squares did not happen as land speculators were more interested in profits than the design implications of L’Enfant’s elegant vision. While Washington is a very legible city for residences and visitors alike especially with the alphabetical and numbered street grid, I often wonder what it would be like if L’Enfant’s design had been fully executed. Imagine a Washington that represents the country in design, and then perhaps in operation.