Size Duel deck / Buildings, bridges and dams
Hoover Dam
Height: from the bedrock to the road on top
about 221.4 m (726 ft)
A concrete arch dam on the Colorado River.
Sources and checks
Checked 2026-11-01: Researched by Codex (two independent publishers, verbatim quotes); every counted quote re-found on its page by the server check (content-verify, or content-verify-pdf for PDFs); scope and plausibility reviewed by Claude (AI build agent). Quotes are short passages from each source.
“726.4 feet from foundation rock to the roadway on the crest”U.S. Bureau of Reclamation: source, retrieved 2026-10-27; quote re-found by the server check
“Hoover Dam rises 726.4 feet above bedrock”Arizona Power Authority: source, retrieved 2026-10-27; quote re-found by the server check
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