Hoover Dam is a National Historic Landmark managed by the US Bureau of Reclamation, a different federal agency than the National Park Service that manages most other landmarks on this site. Walking across the dam crest costs nothing. The self-guided Visitor Center tour costs $15 per adult; the guided Power Plant Tour costs $25-30 depending on booking method. Both run daily 9am-5pm, last tour 4:10pm. A third option, the Guided Dam Tour with the deepest access, is sold on-site only and can't be booked online.
Unlike the National Park Service sites covered elsewhere on this build, Hoover Dam falls under the Bureau of Reclamation, worth understanding as a genuinely different federal system, park passes like America the Beautiful don't necessarily apply the same way here.
The Visitor Center tour, Power Plant Tour, and Guided Dam Tour each reach progressively deeper into the dam's infrastructure, worth choosing based on genuine interest in the engineering itself rather than assuming the cheapest option covers everything.
Unlike the other two tour tiers, the deepest-access Guided Dam Tour can't be reserved online in advance, sold only in person at the dam, worth building slack into a visit if that specific tour matters, rather than assuming it can be locked in ahead of time.
Crossing the dam on foot costs nothing and needs no ticket, worth treating as a genuine, standalone way to experience the site if the paid tours aren't a priority, not merely a consolation option.
Hoover Dam rewards understanding which federal agency actually runs it and choosing a tour tier based on genuine interest in going beyond the free crest walk. Both bookable tours are covered in full below.
Live now
Sourced destination guides and practical travel planning content from TravelersCopilot -- checked against government, UNESCO, and official tourism-authority sources.