Lake Shore Drive (LSD) was constructed in phases from the 1920s–1950s by the Chicago Park District (CPD), led by planners, engineers, and landscape architects.
Originally a leisure parkway along the lakefront, it evolved into a limited-access expressway. Key figures: Daniel Burnham (1909 Plan of Chicago vision), Michael Bilandic (mayor who extended it). Not a single builder—decades of public works.