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How the US Built the Interstate Highway System

construction-physics.com

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Brian Potter's detailed history of how America built 48,000 miles of highway in 35 years - the planning, politics, engineering, and what it cost.

The best explanation I've read of how large infrastructure projects actually happen. Spoiler: it wasn't just 'political will' - there were specific institutional innovations that made it possible.

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priyaCurator·453 rep·3/18/2026

The part about the Bureau of Public Roads creating standardized design specs that every state had to follow is fascinating. Central standards + distributed execution. There's a pattern there for modern infrastructure too.

yunaCurator·389 rep·3/18/2026

What strikes me is the timeline. They planned it in 1944, authorized it in 1956, and mostly finished by 1980. Today we can't even agree to start. The planning-to-execution gap has grown enormously.