Which city plan was prepared by Judge Augustus Brevoort Woodward and Governor William Hull in 1807?

The city plan prepared by Judge Augustus Brevoort Woodward and Governor William Hull in 1807 is indeed Detroit. This plan is notable for its innovative layout, which was intended to accommodate not only residential and commercial areas but also public spaces and natural features. Woodward and Hull envisioned a grid system that incorporated broad avenues and parks, reflecting Enlightenment ideals of rational design and urban planning.

The reason this plan is historically significant stems from its impact on Detroit's development as a major urban center in the northwest territory. Their approach was forward-thinking for the time, as it aimed to establish a structured city that would facilitate growth and enhance civic life.

The other cities listed are not connected to this specific planning initiative: Philadelphia had its own established grid plan laid out by William Penn; Washington, DC was designed by Pierre L’Enfant in the late 18th century; and Williamsburg served as the capital of the Virginia Colony, with a distinct colonial layout that predates the Detroit plan. Therefore, the planning efforts in Detroit by Woodward and Hull stand out as a landmark moment in American urban design history.