Also, the first rebar structure, in golden gate park, is still extant https://99percentinvisible.org/episode/episode-81-rebar-and-the-alvord-lake-bridge/ https:

Also, the first rebar structure, in golden gate park, is still extant https://99percentinvisible.org/episode/episode-81-rebar-and-the-alvord-lake-bridge/ https://99percentinvisible.org/episode/episode-81-rebar-and-...