hoover dam tour information

Visiting the Hoover Dam: The Complete Guide

TripSavvy / Deanna Mazzola

History of the Hoover Dam

How to visit the hoover dam, how to drive across the hoover dam, the best views of the hoover dam, tours of the hoover dam, how to get there, where to stay nearby, tips for your visit.

The  Hoover Dam (originally known as the Boulder Dam), which holds back the mighty Colorado River forming Lake Mead , is located on the Arizona-Nevada border on Highway 93. It's 30 miles southeast of Las Vegas . 

It's a popular tourist destination whose Bureau of Reclamation tour alone draws nearly 1 million visitors every year. The bureau has been leading visitors through the dam and power plant since the '30s, and it is no less impressive today. If you're planning a trip to see the Hoover Dam in person, here's what to know.

The construction of the Hoover Dam originally named the Boulder Dam, backed up the Colorado River, resulting in the formation of Lake Mead. The dam was completed in five years. The contractors were allowed seven years from April 20, 1931, but concrete placement in the dam was completed May 29, 1935, and all features were completed by March 1, 1936.

Nearby Boulder City was built in 1931 to house the dam workers. It is the only city in Nevada where gambling is illegal. Visitors can enjoy antique shopping and restaurants.

If you want to visit the Hoover Dam, the first place to start is at the visitor center . Here, you can make your reservations, get the opening hours, learn about special events, and more.  Yes, you can enjoy the Dam for free. Park in one of the free parking areas and walk across the dam, where you will find plenty of great photo opportunities and interesting information posted along the way. Look up as you walk and see another marvel of engineering: the construction of an immense bridge across the river just downstream from Hoover Dam, on the Hoover Dam Bypass.

There are restrooms in the visitors center, parking garage, adjacent to the Old Exhibit Building and in the downstream face towers on top of the dam. Shopping for a souvenir? You'll find some interesting things at the gift shop on the lower floor of the parking garage. There is also a food concession at the dam.

Look for the warning signs before you cross the Hoover Dam. Not all types of vehicles are allowed to cross the dam. Even better, do a little research on the important  information  before you leave. You might be surprised to know that RVs and rental trucks can cross the dam (but they may be inspected). 

It's tempting to want to stop and take photos of the Hoover Dam or just pause and take it all in. Look for the many pullouts to safely do this. Don't stop on the street. 

The visitors center is on the Nevada side of the dam and it can be a bit more crowded but is another place to park. If you want covered parking or primo parking spots, be prepared to pay. Oversized vehicles, those with trailers and recreational vehicles can't park in the garage closest to the visitors center, though. They have to park in a lot on the Arizona side of the dam. If you're on a budget, you can find lots on the Arizona side a bit further up the canyon that offers free parking, if you don't mind the walk across. There is a closer lot on the Arizona side that costs a fee.

TripSavvy / Taylor McIntyre

Tours of the Hoover Dam are available at the visitors center a first come, first served basis for those over 8 years of age. (Younger children cannot go on the tour.) For those wanting to see the Power Plant, too, you can reserve a ticket online or at the visitors center. All ages are allowed on the Power Plant tour. Neither tour is accessible for those in wheelchairs or with limited mobility.

The Hoover Dam is about a 45 minute drive from the Las Vegas Strip . Exact times may vary due to traffic. Rideshare services can cost around $60 one way depending on the time of day. If you are taking your own car, a parking garage can be found on the Nevada side of the dam. This garage costs $10 and only accepts cash.

There are no public transportation options that go directly to the dam. Take note that the Hoover Dam does not have an exact address, so make sure to set your GPS to the Hoover Dam Visitors Center.

The closest nearby cities to the Hoover Dam are Boulder City, Nevada, Henderson, Nevada, and Winchester, Nevada. A few affordable options are the Hoover Dam Lodge & Casino , the Boulder Dam Hotel , and the Best Western Hoover Dam .

You can find more mid-range options in nearby Lake Las Vegas , including The Westin Lake Las Vegas Resort & Spa and the Hilton Lake Las Vegas Resort & Spa .

If you're planning on staying in Las Vegas and road tripping, make sure to check out our list of the best hotels to book in Las Vegas .

• The Hoover Dam is a major attraction. It is worth visiting, but you may want to avoid the crowds. The slowest months for visitation are January and February. The least crowded time of day for tours is 9 a.m. to 10:30 a.m. and 3 p.m. to 4:45 p.m.
• Remember that you are in the desert. It can get hot at Hoover Dam (lots of concrete, remember?). Dress accordingly and bring water.
• When you are at the Hoover Dam, be sure and take the time to look at the Hoover Dam Bypass. The bridge over the Colorado River is viewable from the dam and as you drive across. The immense bridge is both amazing and scary. It is 900 feet above the river, making it the world's highest concrete arch bridge and the second-highest bridge in the United States, behind the Royal Gorge Bridge in Colorado.
• The main part of the bypass, which rerouted the highway to have fewer sharp turns, is named the Mike O'Callaghan–Pat Tillman Memorial Bridge. The bypass opened in 2010.

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How to Visit Hoover Dam – Things to Do + Tips

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The Hoover Dam is one of the coolest historical landmarks in the American Southwest. An impressive feat of human engineering and hydropower, the dam continues to amaze visitors nearly 90 years after it was built.

Moreover, its close proximity to Sin City makes visiting the Hoover Dam one of the best things to do outside of Las Vegas . You can easily rent a car in Vegas and get to the dam in less than an hour. If you don’t want to drive, I recommend taking a Hoover Dam day tour like this one or flying over this monumental structure on a Hoover Dam helicopter tour .

To help you decide how to visit Hoover Dam and plan your trip, I’m sharing everything you need to know about this landmark attraction. I’ll share how to get there, the 10 best things to do at the Hoover Dam , and more.

Guide to visiting the Hoover Dam

This guide includes everything you should know about Hoover Dam tourism , including ticket prices, directions, and activities. Feel free to read through the entire guide or skip to the topic you’re curious about:

How to visit Hoover Dam

• Best things to do at the Hoover Dam
• Hoover Dam tourist information

Tips for visiting Hoover Dam

Where is the hoover dam located.

The Hoover Dam is on the border of Nevada and Arizona, on the Colorado River in Black Canyon. It’s just 40 minutes from Sin City and one of the best stops on a road trip from Las Vegas to the Grand Canyon .

You can visit the Hoover Dam by car or take a tour from Las Vegas. An organized tour is the most convenient option especially if you don’t have a vehicle or don’t want to drive.

Directions to Hoover Dam from Las Vegas

The Hoover Dam is just 37 miles southeast of Las Vegas, so the drive only takes about 40 minutes.

If you don’t have a vehicle, renting a car in Las Vegas is the best option since you can go on your own schedule and spend as much time at the dam as you want. Plus, you’re free to take any detours or pit stops you’d like. The directions to the Hoover Dam from Las Vegas are quite simple:

• Take I-515 S/US-93 S and follow it for about 34 miles to NV-172 (Exit 2).
• Continue on NV-172, which converts to Hoover Dam Access Rd. You’ll see signs for Hoover Dam bridge parking and the Visitor Center.

Hoover Dam tours from Las Vegas

Of course, if you don’t want to drive, you can take a Hoover Dam tour from Las Vegas . This is definitely the easiest option since most of the tours include the Hoover Dam shuttle from Las Vegas and a live guide. Some of these Hoover Dam tours even include extra stops along the way, so they’re perfect for a day trip.

I recommend this full or half-day tour , which passes through Boulder City and Lake Mead before arriving at the Mike O’Callaghan – Pat Tillman Memorial Bridge. Then, you’ll take a tour through the construction tunnels, powerplant, and Hoover Dam Visitor Center. This tour is included in several Las Vegas tourist cards , including the Las Vegas Go City Pass . I suggest getting the pass if you plan on seeing other Vegas attractions so you can visit them at a discount.

Another option is a Hoover Dam helicopter tour to get a unique aerial view of the Hoover Dam . I like this heli-tour , which flies over the dam and the Grand Canyon West Rim .

10 Best things to do at the Hoover Dam

There is more to do at the Hoover Dam than meets the eye. In addition to some great lookout points, there are interesting attractions and nearby places to check out. Keep reading to see my top 10 recommendations below!

1. Hoover Dam Visitor Center

The first place you should check out is the Hoover Dam Visitor Center . It costs $10 to enter and see the informational exhibits. Here, you can learn more about the history of the Hoover Dam , its legacy, and the power systems and infrastructure that keep it functioning. You can also watch a short documentary about the dam’s construction, including the engineering prowess and manpower it took to build such a huge structure.

The Visitor Center is also where you can purchase tickets for a Hoover Dam tour . There are three tours to choose from:

Hoover Dam self-guided tour

The self-guided Hoover Dam tour costs $10 and is the tour that’s included in your Visitor Center admission. You’ll be able to walk through the narrated exhibits and watch the historical Hoover Dam film. The tour also includes access to the Visitor Center observation decks, which offer panoramic views of the Hoover Dam and Lake Mead, the Colorado River, and the Bypass Bridge in the distance.

Guided Powerplant Tour

The powerplant tour through Hoover Dam costs $15 and grants you access to the dam’s original construction tunnels. A guide will lead you through the passageway and take you to the Nevada Powerhouse to see its commercial generators. You can even feel the force of the water rushing through the pipes below. This tour also includes everything in the self-guided tour.

Guided Dam Tour

For $30, you can take the complete Hoover Dam tour , which includes everything in the powerplant tour, plus an elevator ride to the inner workings of the dam. Take a walk through the old inspection tunnels and check out the ventilation shaft, where you can also see the Colorado River churning. It’s the best deal if you’re interested in the behind-the-scenes logistics of the Hoover Dam.

2. Hoover Dam Bridge – Mike O’Callaghan – Pat Tillman Memorial Bridge

When you visit the Hoover Dam , you’ll also be able to see the Mike O’Callaghan – Pat Tillman Memorial Bridge . From here, you’ll get some of the most impressive views of the dam and its surroundings.

This Hoover Dam Bridge was named after former Nevada Governor Mike O’Callaghan and football player Pat Tillman, who died while on military duty in Afghanistan. It was built to provide a safer route over the dam and ease traffic congestion.

The arch bridge runs across the Colorado River, connecting Nevada and Arizona and measuring 1,900 feet long. Since it opened in 2010, it’s been the widest concrete arch in the Western Hemisphere, and the second-highest bridge in the U.S., at 890 feet tall.

You can walk or drive across the bridge, although you’ll have to get out of your car if you want to get the full view.

3. Hoover Dam Lookout – Kingman Wash

Another one of the best ways to see Hoover Dam is by visiting Kingman Wash . This Hoover Dam Lookout is on the Arizona side of the dam and has the most breathtaking views of the massive structure. From here, you can take in the magnitude of the manmade dam and witness the rushing water while glimpsing Lake Mead, Black Canyon, and the desert environment in the distance.

Best of all, this overlook tends to be less crowded than the others, so you can get a front-row seat to the beautiful views. To get there, follow the Hoover Dam Bridge into Arizona and take the Kingman Wash exit. You’ll find the access road, which is unpaved, and you can take that about a half-mile to the overlook.

If you’re up for it, you can continue along this trail and see the stunning expanse of Fortification Hill, Black Mesa, and the surrounding mountains.

4. Historic Railroad Tunnel Trail at Lake Mead National Recreation Area

I’ve mentioned that you can get nice views of Lake Mead from Hoover Dam , but it’s also worth visiting this place for yourself. Lake Mead was formed as a result of the construction of the Hoover Dam and spans 247 square miles. The Lake Mead National Recreation Area is the largest of its kind in the U.S.

4. Historic Railroad Hiking Trail at Lake Mead National Recreation Area

The calm blue water of the lake is the perfect contrast to the concrete and steel parts of the Hoover Dam . It’s worth spending some time in this area, especially if you enjoy water sports like boating, kayaking and swimming. If you prefer on-land activities, you’ll find hiking trails here, including the Railroad Tunnel Trail .

This family-friendly trail starts at the Lake Mead Visitor Center and has sturdy terrain and signposts, so it’s quite easy. Since it travels along the Boulder City Highway, you’ll be able to see the Hoover Dam’s construction tunnels while you hike. You’ll also see the Hoover Dam Boneyard, the Lake Mead – Lakeview Overlook, and natural scenery, so it’s one of the best hikes near Las Vegas .

5. Gold Strike Hot Springs Trail

Hiking the Gold Strike Hot Springs Trail is one of the best things to do at the Hoover Dam , especially if you love outdoor activities like us. This 6-mile off-road hike is a bit of a challenge, but most people can do the first mile or so without any problems. Just be sure to bring plenty of water and snacks and to dress appropriately for the weather.

The trail has a few areas where you’ll have to scramble over boulders and watch your footing, but it’s worth the effort. As you make your way through the wash canyon, you can find scenic grottoes, natural pools, and maybe some bighorn sheep.

Some of the hot springs in the area have dried up, but there are a few you can swim in, and there are some thermal waterfalls, too. It’s one of the coolest places to visit near the Hoover Dam , so I highly recommend it.

6. Dam Builders Memorial at Hoover Dam

By the entrance to the Hoover Dam , you can see the beautiful, winged figures built by Norwegian sculptor Oskar J. W. Hansen. The figures represent guardian angels looking over the dam, and they’re accompanied by a plaque dedicated to the people who died during the dam’s construction.

The plaque was on the canyon wall on the Arizona side of the dam but was moved so it would be closer to the sculptures. The accompanying plaque reads, “They died to make the desert bloom. The United States of America will continue to remember that many who toiled here found their final rest while engaged in the building of this dam. The United States of America will continue to remember the services of all who labored to clothe with substance the plans of those who first visioned the building of this dam.”

Visiting this little piece of the dam is even more meaningful after going through the Hoover Dam Visitor Center and learning about the history of this monument.

7. Hemenway Park

Not far from the dam, off Highway 93, you’ll find Hemenway Park in Boulder City. I recommend taking this detour to visit the park, get some fresh air, and spot some wildlife.

Hemenway Park is a pleasant green space that’s perfect for the whole family. It’s mostly known for its herds of bighorn sheep, who often graze in the park. The bighorn sheep is Nevada’s state animal, so keep your eyes peeled for strays snacking on the grass or resting in the shade.

There are also tennis courts, picnic areas, and a playground at the park, so you can take a brief break here before continuing your journey to the Lake Mead and Hoover Dam area .

8. Boulder City/Hoover Dam Museum

The Boulder City/Hoover Dam Museum is inside the Boulder Dam Hotel at 1305 Arizona Street. This is another Boulder City attraction near the Hoover Dam that you should add to your itinerary.

The museum chronicles the construction of the dam as well as the history of Boulder City through artifacts, photos, and an educational theater. Many of the objects on display date back to the Great Depression, offering a look back at the social and political climate of the time. You’ll also learn more about the Hoover Dam’s impact and how it paved the way for hydroelectric power and engineering.

The Boulder City/Hoover Dam Museum is free and open daily from 7:00 a.m. to 7:00 p.m.

9. Nevada Southern Railroad Museum & other places to visit in Boulder City

Given its proximity to the Hoover Dam , Boulder City is a great place to explore during your trip, so I recommend spending a few hours here if you have time.

In addition to the Boulder City/Hoover Dam Museum and Hemenway Park, the city is home to the Southern Railroad Museum , one of the most popular attractions in Nevada . This museum has a collection of historic trains and locomotive models dating back as far as the 1840s. There are also interpretive exhibits and a 7-mile heritage railroad ride that you can enjoy. This family-friendly attraction is one of the best things to do near Hoover Dam with kids.

Another cool place to check out is Bootleg Canyon Park , a haven for mountain bikers and hikers. The cross-country and downhill trails here wind through the desert landscape and pass by some stunning viewpoints overlooking Lake Mead.

For a scenic change of pace, head to Veteran’s Memorial Park , a 25-acre green space with several sports fields and courts, a 3-acre fishing pond, a skatepark, and walking/biking paths. Another outdoor option is the Alan Bible Botanical Garden , which is home to various species of desert shrubs and cacti.

10. Get stunning aerial views of the Hoover Dam

Finally, to make your visit to the Hoover Dam extra special, consider taking a Hoover Dam helicopter tour . It’s the best way to get aerial views of Hoover Dam and fully grasp the magnitude of this massive structure.

Keep in mind that most helicopter tours from Las Vegas to the Grand Canyon also fly over the Hoover Dam . So, if you’re traveling from Vegas and don’t mind just doing a helicopter ride over the dam, this type of tour can be a great deal. We took this heli-tour and got some exceptional photos of the Hoover Dam and the Grand Canyon from above. The birds-eye view was so amazing that we’ve taken additional helicopter tours over the area. I highly recommend seeing it for yourself !

Hoover Dam tourist information (hours, ticket price, map, and more)

Now that you know the best things to do at the Hoover Dam , here is some important information you’ll need to plan your visit.

Hoover Dam hours

The hours for the Hoover Dam are 5:00 a.m. to 9:00 p.m. daily. The Hoover Dam Visitor Center is open from 9:00 a.m. to 5:00 pm, and official tours operate from 9:00 a.m. to 3:45 p.m. You can visit Hoover Dam 365 days a year, except for Thanksgiving and Christmas Day.

Entrance fee and tickets to Hoover Dam

There is no cost to see the dam, but if you want to go into the Hoover Dam Visitor Center and see the exhibits, you must pay the $10 admission. There are also different guided tours of the Hoover Dam , which range from $15-$30 per person and include admission to the Visitor Center.

Hoover Dam map

You’ll have an easier time planning your visit with this Hoover Dam map . It includes an overview of the dam, the parking lots, and attractions surrounding the dam.

Parking at the Hoover Dam

There is free Hoover Dam parking across from the Mike O’Callaghan – Pat Tillman Memorial Bridge. There is another free lot on the Arizona side. Paid parking at the garage by the Visitor Center costs $10 per vehicle.

Hoover Dam hotel

If you want more time to visit the Hoover Dam and the surrounding area, consider staying overnight. The Hoover Dam Lodge in Boulder City is the best hotel by the Hoover Dam . It’s just a 5-minute drive away and offers good nightly rates and free parking.

The accommodation features spacious and tidy rooms that are ideal for families. Plus, there are additional guest amenities like an outdoor pool, a fitness center, a casino, a general store and a restaurant.

Otherwise, we have a full guide on where to stay in Las Vegas , for more accommodation options.

Hoover Dam history & facts

What’s so special about the Hoover Dam anyway? You’ll learn all about it when you visit and take a tour, but for now, here are some Hoover Dam facts to entice you:

• The dam was built between 1931 and 1936 to hold back the waters of the Colorado River and supply hydroelectric power to the surrounding area, which was rapidly developing. Today, the Hoover Dam still fulfills this purpose and provides power to over a million people in three states and irrigates 2 million acres of land.
• The Hoover Dam’s height of 726.4 ft made it the world’s tallest dam until 1968 when it was surpassed by California’s Orville Dam (770 ft).
• The Mike O’Callaghan – Pat Tillman Memorial Bridge is the Western Hemisphere’s longest single-span concrete arch bridge . It replaced the portion of US-93 that crossed over the top of the dam to help ease traffic congestion.

• The construction of the Hoover Dam was a huge project and provided employment for thousands of people who were out of work due to the Great Depression. As these laborers flocked to the area, they needed a place to live, so Boulder City was built to house the workforce .
• During the five years it took to build the dam, over 130 workers died , either from accident or illness.
• The dam is named after U.S. President Herbert Hoover , whose administration approved the project’s construction. However, President Hoover wasn’t invited to the dedication ceremony, and the dam wasn’t officially named until 1947.
• In 1939, the United States discovered that the Hoover Dam was the target of a German military bomb threat , and U.S. officials were able to stop the attack .

Before you plan your visit to the Hoover Dam , here are some tips to keep in mind:

• Plan to spend 3-4 hours here. This will give you time to take pictures, go to the Hoover Dam Visitor Center, take a tour, and explore the Lake Mead area.
• The best time to visit Hoover Dam if you want to avoid crowds is between 9:00 a.m. and 10:30 a.m. or 3:00 p.m. to 4:45 p.m .
• Remember that it takes about an hour to visit the Hoover Dam by car from Vegas. Make sure you give yourself enough time to get there and maximize your visit.
• It is free to cross the Hoover Dam Bridge , but there is a fee to get into the Visitor Center. Also, the tours at the Hoover Dam range from $15-$30 per person.
• Parking at the Hoover Dam Visitor Center costs $10. You can find free Hoover Dam parking on the Arizona side, across from the Memorial Bridge.
• Be prepared for desert heat and bring plenty of water to carry with you. There isn’t much shade around the dam, so sunscreen, sunglasses, and hats are must-haves.

FAQs about visiting Hoover Dam

To round out this guide on how to visit the Hoover Dam , here are the answers to some common questions:

How tall is Hoover Dam?

The total height of the Hoover Dam is 726.4 feet.

The Hoover Dam is on the border of Nevada and Arizona, on the Colorado River in Black Canyon.

How far is Hoover Dam from Las Vegas?

The Hoover Dam is just 37 miles from Las Vegas, or about a 40-minute drive.

When was the Hoover Dam built?

Construction on the Hoover Dam began in April 1931, and it opened in March 1936.

Why was the Hoover Dam built?

The purpose of the Hoover Dam was to control flooding on the Colorado River and to help with agricultural irrigation and hydroelectric power to Nevada, Arizona, and California.

How long does it take to visit Hoover Dam?

You should plan to spend about 3 hours touring the Hoover Dam .

When is the best time to visit Hoover Dam?

The best time to visit the Hoover Dam is in fall or winter when there are minimal crowds, and the temperatures are mild.

Can I see the Hoover Dam without a tour?

Yes, you can walk across the Hoover Dam and see the lookout points, but if you want to go into the Visitor Center, you need to pay the admission fee.

Can you see the Hoover Dam for free?

Yes, you can see the Hoover Dam for free, but it’s worth taking the tours.

How much does it cost to visit Hoover Dam?

It’s free to go to the Hoover Dam, but the Visitor Center costs $10 per person. The tours at the Hoover Dam range from $15 to $30.

Is Hoover Dam worth seeing?

Absolutely! It’s worth visiting the Hoover Dam and learning about its history while seeing it up close. Plus, the dam is close to Las Vegas and on the way to the Grand Canyon.

Can you walk across the Hoover Dam?

Yes, and it’s free to walk across the Hoover Dam Bridge .

Can you drive across Hoover Dam?

Yes, you can drive across the dam and park in one of the free lots or the paid parking garage.

That’s it from me! I hope you feel better prepared for your Hoover Dam visit and that you make the most of your time here. If you have any other questions, feel free to leave me a comment below. I’d also love to hear about your experience touring the Hoover Dam .

Stay safe and have a wonderful trip!

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Explore Hoover Dam Visitor Center Tours For An Unforgettable Experience

Embark on guided or self-guided tours at Hoover Dam Visitor Center to see the powerplant, observation deck, and educational exhibits. Don’t miss out on planning tips for a great experience!

Tour Options at Hoover Dam Visitor Center

When visiting the Hoover Dam Visitor Center, you will have two main tour options to choose from: Guided Tours and Self-Guided Tours. Each option offers a unique way to experience this iconic landmark and learn more about its fascinating history.

Guided Tours

Guided Tours at the Hoover Dam Visitor Center are led by knowledgeable and experienced tour guides who will take you on a journey through the inner workings of the dam. You will have the opportunity to explore areas of the dam that are not open to the general public and learn about the dam’s construction, operation, and significance. This interactive tour is perfect for those who want a more in-depth and educational experience.

• Highlights of Guided Tours:
• Insider access to restricted areas
• Detailed explanations from tour guides
• Interactive learning experience

Self-Guided Tours

If you prefer to explore at your own pace, the Self-Guided Tours at the Hoover Dam Visitor Center are the perfect option for you. You will receive a map and informational guide to help you navigate the and dam area on your own. This option allows you the freedom to spend more time in areas that interest you the most and take in the sights at your leisure.

• Highlights of Self-Guided Tours:
• Flexibility to explore at your own pace
• Opportunity to focus on specific areas of interest
• Ability to take breaks and rest as needed

Whether you choose a Guided Tour or a Self-Guided Tour at the Hoover Dam Visitor Center, you are sure to have a memorable and informative experience. Both options offer unique perspectives on this engineering marvel and allow you to appreciate the history and significance of the Hoover Dam in your own way. So, which tour option will you choose for your visit to the Hoover Dam Visitor Center?

Related: Explore The Best Attractions In Myrtle Beach For An Unforgettable Vacation

Highlights of Hoover Dam Visitor Center Tours

Powerplant tour.

When visiting the Hoover Dam Visitor Center, one of the must-do tours is the Powerplant Tour. This tour takes you deep inside the dam where you can see the massive generators that produce electricity for thousands of homes. You’ll learn about the history of the dam, how it was built, and the engineering marvel that it is. The tour guides are knowledgeable and will answer any questions you have along the way.

Observation Deck Tour

Another highlight of the Hoover Dam Visitor Center tours is the Observation Deck Tour. From the observation deck, you’ll have panoramic views of Lake Mead, the Colorado River, and the surrounding desert landscape. It’s a great opportunity to take in the beauty of the area and snap some unforgettable photos. The guides will point out interesting landmarks and provide insights into the significance of the dam to the region.

• Experience the inner workings of the dam on the Powerplant Tour.
• Enjoy breathtaking views from the Observation Deck Tour.

Whether you’re interested in the engineering marvel of the dam or simply want to take in the stunning scenery, both tours offer something for everyone. Don’t miss out on these highlights during your visit to the Hoover Dam Visitor Center.

Planning Your Visit to Hoover Dam Visitor Center

Ticket information.

When planning your visit to the Hoover Dam Visitor Center, it’s important to consider the ticket information. Tickets can be purchased online in advance or at the on the day of your visit. Prices vary depending on the type of tour you choose, with guided tours typically costing more than self-guided tours. It’s recommended to check the official website for the most up-to-date ticket prices and availability.

Tour Schedule

Once you have purchased your tickets, it’s time to plan out your tour schedule. The Hoover Dam Visitor Center offers a variety of tour options, including guided tours and self-guided tours. Guided tours are led by knowledgeable staff members who provide in-depth information about the dam’s history and significance. Self-guided tours allow visitors to explore the center at their own pace.

Related: Fascinating Facts About The Hoover Dam Construction

• Consider the time of day you want to visit the Hoover Dam Visitor Center. It can get quite crowded during peak hours, so arriving early in the morning or later in the afternoon may provide a more enjoyable experience.
• Wear comfortable shoes as you will be doing a fair amount of walking during your visit. The dam’s terrain can be uneven, so it’s important to wear appropriate footwear to ensure your comfort throughout the tour.

By planning ahead and considering ticket information and the tour schedule, you can make the most of your visit to the Hoover Dam Visitor Center. Whether you choose a guided tour or opt for a self-guided exploration, you’re sure to be amazed by the history and engineering marvel of this iconic landmark.

What to Expect on Hoover Dam Visitor Center Tours

Educational exhibits.

When embarking on a tour of the Hoover Dam Visitor Center, one can expect to encounter a wide array of educational exhibits that offer a fascinating glimpse into the history and engineering marvels of this iconic structure. From interactive displays detailing the construction process to informative panels highlighting the dam’s impact on the surrounding environment, visitors are sure to come away with a newfound appreciation for the ingenuity and perseverance that went into building the dam.

One of the standout exhibits at the Visitor Center is the “Power of Water” display, which showcases the vital role that water plays in generating electricity and sustaining life in the arid desert landscape . Through engaging visuals and hands-on activities, guests can learn about the intricate workings of the dam’s hydroelectric power plant and gain a deeper understanding of the importance of water conservation in the region.

Views of the Colorado River

In addition to the educational exhibits, visitors can also look forward to breathtaking views of the mighty Colorado River as it winds its way through the dramatic Black Canyon. Whether gazing out from the observation deck or taking a leisurely stroll along the perimeter of the dam, the stunning vistas provide a perfect backdrop for capturing memorable photos and soaking in the natural beauty of the surrounding landscape.

As the sun casts its golden glow over the shimmering waters below, visitors can witness the interplay of light and shadow that creates a mesmerizing spectacle against the rugged cliffs and rugged terrain. The juxtaposition of nature’s raw power and human ingenuity serves as a poignant reminder of the delicate balance between progress and preservation, making the Hoover Dam Visitor Center a truly awe-inspiring destination for travelers of all ages.

Related: Construction And Timeline Of Hoover Dam

Tips for a Great Experience on Hoover Dam Visitor Center Tours

Arrive early.

When embarking on a tour of the Hoover Dam Visitor Center, one of the most important tips for ensuring a fantastic experience is to arrive early. By arriving before the crowds, you can beat the rush and have more time to explore all that the center has to offer.

• Make sure to check the tour schedule in advance and plan your visit accordingly.
• Consider arriving at least 30 minutes before your scheduled tour to allow time for parking and getting oriented.
• Early arrival not only allows you to avoid long lines and overcrowding but also gives you the opportunity to take in the breathtaking views of the dam and surrounding area without feeling rushed.

Wear Comfortable Shoes

Another essential tip for making the most of your Hoover Dam Visitor Center tour is to wear comfortable shoes . With so much to see and explore, including educational exhibits, the powerplant tour, and the observation deck tour, you’ll be doing a fair amount of walking.

• Opt for supportive, closed-toe shoes with good traction to navigate the various indoor and outdoor areas of the center.
• Comfortable footwear will help prevent fatigue and ensure that you can fully enjoy the experience without being distracted by discomfort.
• Remember that the terrain around the dam can be uneven, so sturdy shoes are a must for safety and ease of movement.

By following these simple tips and arriving early with comfortable shoes, you’ll set yourself up for a memorable and enjoyable visit to the Hoover Dam Visitor Center. So, lace up those sneakers, grab your camera, and get ready to explore one of the most iconic landmarks in the United States!

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The 5 best hoover dam tours from las vegas (2024).

Learn more about this architectural marvel on a guided tour.

Best Hoover Dam Tours from Las Vegas

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If you're planning what to see and do in Las Vegas , you may be considering a day trip to the Hoover Dam – the National Historic Landmark that diverts water from the Colorado River to various corners of the southwestern United States. Authorized by President Calvin Coolidge in 1928, the dam took around five years to build. At the time of its completion in 1935, dam workers used 6.6 million tons of concrete, more than 5 million barrels of cement and 45 million pounds of steel.

Tours of the facility are available on-site and include access to the power plant and the dam's tunnels. However, independent tour companies – many of which depart from Las Vegas – also make stops at the dam. Many of the Hoover Dam tours from Las Vegas include additional experiences, such as a stop at the Las Vegas welcome sign or the Seven Magic Mountains public art installation.

Considering both traveler sentiment and expert input, U.S. News selected the best Hoover Dam tours from Las Vegas.

Comedy on Deck Tours – Hoover Dam Ultimate VIP Tour

Price: Adults from $90; kids from $80 Duration: 7 hours

Guides double as stand-up comedians on this Hoover Dam bus tour. In addition to round-trip transportation from your Las Vegas Strip hotel and a dedicated driver, this full-day tour includes a 45-minute walk across the top of the dam, the chance to see interior generators and learn how they work, and a sit-down lunch at a local restaurant. Plus, you'll stop at the iconic Las Vegas welcome sign for a photo-op and drive through historic Boulder City, Nevada. Tourists call it a great way to spend a day thanks to the entertaining and talented guides and the manageable pace of the tour.

This tour departs daily between 7:25 and 8:20 a.m., depending on your hotel's location along the Strip. The company also offers a Grand Canyon West tour that departs from Las Vegas.

Check prices & availability on:

Gray Line Las Vegas – Half Day Hoover Dam from Las Vegas Tour

Price: From $72 Duration: 4.5 hours

An ideal option if you're short on time, this half-day Hoover Dam tour operated by Gray Line Las Vegas promises round-trip transportation from the Strip to the dam, plenty of photo opportunities and two hours to explore at the dam. During the excursion, you'll also enjoy access to the dam museum and visitor center, as well as a guided tour of the power plant. Plus, the tour includes time for a photo-op at the famous Las Vegas welcome sign. Reviewers rave about the views seen along the tour and the entertaining, informative guides. Travelers also say this is a convenient, affordable tour for visitors based in Las Vegas.

Two departures are available daily at 10 a.m. and 1:30 p.m. Gray Line also offers tours to see the Grand Canyon .

Pink Adventure Tours – Hoover Dam Tour

Price: Adults from $119; kids from $109 Duration: 4 hours

Take in views of Lake Mead, the Hoover Dam and the Colorado River on this small-group tour that's capped at 10 participants. You'll get picked up from your Las Vegas hotel in one of the company's air-conditioned "Tour Trekker" vehicles, which features oversized windows, leather captain's chairs and an onboard audio system so you can easily hear the commentary from your driver, who doubles as your guide. Along your drive to the dam, you'll learn about the Mojave Desert, as well as early mining in the area and housing for dam workers. Upon reaching the dam, you'll enjoy 360-degree views from the observation deck before descending to the Power Plant. Guides from the Bureau of Reclamation will take you through the inspection tunnels and the generator room. Most reviewers give this tour high marks, praising the knowledgeable, entertaining tour guides, the comfortable vehicles and the small group size. Travelers also said this is a good option for visitors who do not want to devote an entire day to seeing the Hoover Dam.

Take your pick between an 8 a.m. or 1 p.m. departure. Pink Adventure Tours also offers tours of Red Rock Canyon and the Strip.

MaxTour – Hoover Dam Walk On Top Tour with Seven Magic Mountains

Price: From $80 Duration: 5 hours

You'll see more than just the Hoover Dam on this jam-packed outing. After being picked up from your Las Vegas hotel, you'll stop at the Las Vegas welcome sign to snap some photos before heading to Seven Magic Mountains, a public art installation by Ugo Rondinone that features a collection of colorful stacked boulders. Next up is a walking tour across the Hoover Dam and the Mike O'Callaghan–Pat Tillman Memorial Bridge. Along the way, your guide will make bonus stops at some of their favorite "hidden gem" spots. Participants laud the knowledgeable guides, who reviewers say make the experience fun and memorable. Others appreciated the guides' willingness to take photos for them, and their many restaurant recommendations.

Tours, which are capped at 14 people, are offered Monday, Wednesday and Saturday at 8 a.m. The company also operates tours that combine a visit to the Hoover Dam with a stop at the Grand Canyon.

Mr. Las Vegas – Hoover Dam Mini Tour

Price: Adults from $70; kids from $65 Duration: 3 hours

If you don't want to devote an entire day to seeing the Hoover Dam, consider this "mini" small-group tour operated by Mr. Las Vegas. It includes round-trip transportation from the Strip in a 14-person vehicle, a drive through Boulder City, and stops at Lake Mead and Hemenway Park (known for its herds of wild big horn sheep). You'll also enjoy plenty of panoramic views and photo-ops at the Hoover Dam, including at the Mike O'Callaghan-Pat Tillman Bridge. Reviewers praise the length of the tour and applaud the guides for their informative, engaging delivery. They also admired the views to and from the dam.

Hoover Dam tours are available twice-daily at 8 a.m. and noon. Note that tour lengths may stretch to four hours based on where you are picked up or dropped off on the Strip. Mr. Las Vegas also operates tours that combine a visit to the Hoover Dam with a stop at Seven Magic Mountains.

Frequently Asked Questions

The length of a Hoover Dam tour depends on which one you select; the Bureau of Reclamation offers two. If you opt for the Guided Power Plant Tour, it takes about 30 minutes. The Guided Dam Tour lasts about one hour. A tour with an independent company – which provides round-trip transportation from Las Vegas and may stop at other locales – will likely last several hours.

Yes, you can see the Hoover Dam without a tour. The exterior of the dam is open to visitors daily from 5 a.m. to 9 p.m. You can take a self-guided tour of the visitor center for $10, which includes access to the center's exhibits and access to the observation deck and Original Exhibit Building. You can also view parts of the Hoover Dam for free from the pedestrian plaza, which features panoramic views of the Colorado River, Lake Mead and the dam. However, if you'd like to see the historic construction tunnels, walk through the inspection tunnels or take a tour of the power plant, you'll need to purchase tickets for one of the guided tours.

To avoid crowds, plan your visit to the Hoover Dam on a weekday. According to the Bureau of Reclamation, the least busy times for tours are 9 to 11 a.m. and 2:30 to 3:45 p.m.

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• The Best Las Vegas Tours
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The Dam Crew

Boulder city/hoover dam museum, environmental/cultural exhibits .

Location: The dam is located 7 miles northeast of Boulder City, NV. Take US Highway 93 to Nevada State Route 172. The dam is on the Nevada-Arizona border.  Get Directions.

Hours and Fees:

Parking Deck: 8 AM - 5:15 PM

Parking Fee: $10:00

Visitor Center: 9 AM - 4:15 PM

Tickets: $10:00; children 3 and under are free

Power Plant Tour: 9 AM - 3:45 PM

Adults: $15.00

Seniors (62+): $12.00

Juniors (16 & Under): $12:00

U.S. Military:  $12.00

How to spend a day at Hoover Dam, Lake Mead and Boulder City for FREE

- 7 stops in 7 miles -.

1. Park in one of the free parking lots on the Arizona side of the dam, then enjoy the amazing architecture as you walk across the top of the dam to the stunning Art Deco sculptures on the Nevada side.

2. Relish the spectacular views of Hoover Dam and Black Canyon from 890 feet above the Colorado River on the Hoover Dam Bypass Bridge walkway.  The bridge is the world's tallest concrete arch span.

3.  Stop by the Alan Bible Visitor Center to see a full size relief map of the Lake Mead National Recreation Area and explore the plants and animals that make Lake Mead home.

4. Drop in on the desert big horn sheep as they graze at Hemenway Park in Boulder City. You'll find them there most afternoons. They're wild, so keep a safe distance!

5. Step back in time with a visit to the historic Boulder Dam Hotel in downtown Boulder City. Built in 1933, the hotel operates today with 21 guest rooms, a Hoover Dam museum, a popular restaurant and an art gallery.

6. Inside the Boulder Dam Hotel, you'll discover the Boulder City/Hoover Dam Museum. Their interactive exhibits tell the story of the Hoover Dam, as well as the men and women who built it and settled Boulder City.

7. WALK BC is a self-guided audio walking tour of Boulder City, the town formed to house the workers who built Hoover Dam. The tour takes you through the historic district, which is recognized on the National Register of Historic Places.

Map to all 7 Stops

Lake Mead Activities

The Town That Built Hoover Dam

Historic Downtown

Colorado River Activities

Hiking & Biking Trails

Grand Canyon Tours

Desert Adventures

Excellent Restaurants

"What's in a name?" and other dam facts:

What's in a name, you ask?  Politics!  The dam was originally planned for Boulder Canyon and the early 1920's blueprints were labeled Boulder Dam. Although the site for the dam was moved to Black Canyon, the dam continued to be called Boulder Dam until 1931 when Secretary of the Interior, Ray Wilbur pronounced the dam would be called Hoover Dam.  In 1933, the new Secretary of the Interior under the Roosevelt administration, Harold L. Ickes, ordered the name "Boulder" be used as the official designation.  Finally, in 1947, under President Harry Truman, the dam was officially named "Hoover."

The Hoover Dam has appeared in dozens of movies, including The Silver Streak (1934), Heldorado (1946), The Amazing Colossal Man ( 1957), Ocean's Eleven (1960), Viva Las Vegas (1964), Diamonds Are Forever (1971), Superman (1978), Lost In America (1985), Universal Soldier (1992), Fools Rush In (1996), Vegas Vacation (1996), Head of State (2003), and Transformers (2007).

Hoover Dam is 724.6 feet high and weighs 6,600,000 tons.

The water pressure at the base of the dam is 45,000 pounds per square foot.

The sculptures at the dam were created by Oskar J. W. Hansen who saw his work as "a monument to collective genius asserting itself in community efforts around a common need or ideal."

There is enough concrete in Hoover Dam to build a two lane highway from Seattle, Washington to Miami, Florida or a four foot wide sidewalk around the Earth at the equator.

Because of the dam's remote location and difficult terrain, a town had to be built to house the construction companies and their workers. That town became Boulder City, NV and currently thrives as a safe, clean community of approx. 16,000 with beautiful parks, excellent restaurants and accommodations, educational museums and sites, and an array of outdoor adventure activities. Learn more about the Hoover Dam/Boulder City area at explorebouldercity.com .

Boulder Dam Hotel

Rated #1 in Boulder City in:

Cleanliness

Wireless Internet

Hoover Dam Visitor Center

Hoover Dam Visitor's Center

Murals, maps, photos and other displays provide an introduction to Hoover Dam history.

Theater One

"How the West was Won": This presentation describes the contribution of the Bureau of Reclamation in taming the rivers, and its contribution in helping settle the West and growing the food that feeds the nation.

The Power Plant Generators

Take the large elevators 500 feet down into the wall of Black Canyon, walk through a 250-foot long tunnel drilled out of rock, and view the 650-foot long Nevada wing of the power plant and its eight huge generators.

Penstock Viewing Platform

View one of the four huge 30-foot-diameter pipes that can transport nearly 90,000 gallons of water each second from Lake Mead to the hydroelectric generators in the powerhouse.

The Exhibit Gallery

Located on the plaza level of the Visitor Center, these exhibits highlight some of the natural history of the region and present a picture of how Hoover Dam was constructed and how it presently operates. It may be accessed by taking the stairs or elevator located in the center of the theater level.

The Overlook

May be accessed by taking the stairs or elevator adjacent to the Exhibit Gallery. There is a beautiful panoramic view from the observation deck that encompasses Lake Mead and the Colorado River. Camera enthusiasts will want to photograph the view. A guide will point out significant features of the dam and its surroundings. Inside the observation room is a sculpture presented by the water and power users of the Colorado River Lower Basin States. These are the businesses whose customers cover the cost of operating the Dam.

Street Level Displays and Exhibits

Winged Figures of the Republic

This bronze masterpiece is directly across the street from the Visitor Center. A presentation at this site discusses the concepts the artist had mind in creating the statues, as well as the star map located at its base.

The Old Exhibit Building

Used as a headquarters for soldiers during World War II, this building is located around the corner from the winged figures.

The Nevada Intake Tower

From this location on the Nevada side of the dam, visitors will learn about the power of water in generating electricity and some of the artwork incorporated into the towers surrounding the power plant elevators.

Guide Talks

Talks by guides are presented every 15 minutes from 9:30 AM to 5:45 PM.

Restrooms are located on level 1 of the garage, on the Visitor Center's theater level and near the Exhibit Gallery, adjacent to the Old Exhibit Building, and on top of the dam.

(Photo courtesy of United States Department of the Interior Bureau of Reclamation - Lower Colorado Region)

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Hoover Dam Exploration Tour

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Starting at

Departure Time

Boulder City, Nevada

• Approx. 5 Hours

Your tour begins with a pickup from the Las Vegas strip for a ground tour of Hoover Dam National Historic Landmark. Your tour includes the Power Plant Tour, 500 feet into the dam to view the turbines and the famous generator room. Also see the Visitor Center, along with historical exhibits and the observation deck. Then marvel at the Hoover Dam, the Colorado River, and Black Canyon from 900 feet high above on the Mike O’Callaghan-Pat Tillman Memorial Bridge. Enjoy a visit to Historic Boulder City with charming antique stores, cafes and the Hoover Dam Museum.

What's Included:

Round-trip luxury motor coach transportation, entry fee into the bureau of reclamation, entry fee for hoover dam visitor center, ticket for interior tour of hoover dam and generator room, complimentary bottled water.

Cancellation Policy: We offer free cancellation up to 24 hours before the start of the tour. Any cancellations received less than 24 hours will not be refunded.

Disclaimer: Every effort will be made to adhere to the published itineraries. National Park Express reserves the right to alter any itinerary at any time based on local conditions, and will not be responsible for losses incurred due to unforeseen circumstances. Tour prices are subject to change. NPE reserves the right to adjust the listed price at any time for any reason, however, we will not adjust prices once the booking has been confirmed and full payment has been received. Once a tour departs, there will be no refunds extended.

Should weather issues or other unforeseen circumstances cause a delay in our tour or transportation before the departure, National Park Express reserves the right to postpone or cancel, and any loss or additional expenses incurred shall be borne by the participants.

The listed tours are designed by National Park Express; we do our best to make sure all the tour arrangements and inclusions will be the same as planned. Should any unforeseen situation(s), such as traffic, road conditions, accidents, mechanical problems, public enemies, strikes, riots, political upheavals, the authority of law, bad weather, or any other natural circumstances beyond our control arise, local agents conducting the tour or our office staff reserve the right to alter the itinerary as necessary for the comfort and safety of the participants. Any additional expenses incurred shall be charged to the participants. Participants should strictly abide by the laws and regulations of the local governments. National Park Express will not be responsible for individuals, for any and all penalties due to any regulations of the governments of the cities, counties, countries, and other jurisdictions visited.

To ensure comfort, quality, and safety, NPE reserves the right to accept, reject, or expel any individual who is deemed disruptive or incompatible with the interests, comfort, and safety of the group. All expenses to do so will be borne by the passenger. NPE will not be responsible for the behavior of any tour participant. NPE reserves the right to make changes in the itinerary, or to cancel, whenever the Company deems it necessary for the comfort, convenience, or safety of the tour participants.

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Nevada and arizona: hoover dam.

As early as 1901, manmade canals diverted Colorado River water to the Imperial Valley’s fruit and vegetable fields. But the Colorado was a mighty river, gouging rock mesas as it went, including the most famous gorge of all--the Grand Canyon. The Colorado could grow angry, swelling to a torrent, flooding land for miles around, clogging irrigation canals with sediment, and washing away small earth dams. In 1905, the Colorado broke out of its banks at an irrigation canal head works and ran wild for months, sending its entire flow into the Salton Sink--creating the Salton Sea. As the Colorado destroyed homes and crops, and damaged highways and railroads, its name turned to mud, much like the landscape it destroyed. To engineers at the U.S. Bureau of Reclamation, the solution was clear: a large, multipurpose dam that not only would control floods, but harness the Colorado for irrigation and hydroelectric power. Years of debate followed as opponents questioned the economic feasibility and engineering know-how for such an enormous project. Furthermore, six of the seven states in the Colorado River drainage area (Colorado, Wyoming, Utah, New Mexico, Arizona, and Nevada) expressed fears that California would get the lion’s share of the water. Then-Secretary of Commerce Herbert Hoover stepped up as the man of the hour when he oversaw a compromise in 1922 that became the Colorado River Compact. This compact divided the seven states into the Upper and Lower Basins, established a set amount of river water to be consumed annually, and left the apportionment percentages for the states to work out among themselves. On December 21, 1928, President Calvin Coolidge signed an act authorizing the Boulder Canyon Project, so named because a study originally had recommended the Boulder Canyon of the Colorado, not the nearby Black Canyon, as the site of the dam. On July 3, 1930, then-President Herbert Hoover signed the first appropriation bill. It was during dedication ceremonies on September 17, 1930, that Secretary of the Interior Ray L. Wilbur, while driving a silver spike for the railroad spur that would run to the construction site, announced that the name of the colossal structure was to be Hoover Dam. However, the soon-to-be-elected Democratic administration of Franklin Roosevelt continued to use the name Boulder Dam. It wasn’t until April 30, 1947, that a resolution of Congress made Hoover Dam the official name. 

Building Hoover Dam was a monumental undertaking. Construction required 5 million barrels of cement and 45 million pounds of reinforcement steel. The mass of concrete used weighed 6.6 million tons and would pave a road stretching from San Francisco to New York City. Hoover Dam’s spillways could float a battleship, and Lake Mead, when filled to capacity, contains enough water to cover Connecticut 10 feet deep. It would take a maximum of 5,218 men (employed in any one month) a total of five years to build the dam, which actually was completed ahead of schedule. The construction contract went to a combination of six prominent contracting firms that pooled their resources and incorporated as Six Companies Inc. of San Francisco, for the express purpose of building Hoover Dam. Six Companies’ low bid of nearly $49 million, awarded on March 11, 1931, was the largest construction contract let by the U.S. government up to that time.  Housing and feeding workers was a huge task, as well. The government designed and built the still thriving Boulder City, six miles from the dam site. A state-of-the-art hospital anticipated the many injuries to come (the official death toll is 96 men), while a fully stocked department store, recreation hall, laundry, and amenities from a school to a post office rounded out the town. Married men and their families lived in 758 cottages, while single men lived in one of nine dormitories. The men paid $1.60 a day for room and board at the domitories, but they received a private room, transportation to and from the construction site, and all-they-could-eat meals. Beef, veal, lamb, and pork came in 20,000-pound lots shipped from Reno. With no dairies in southern Nevada, Boulder City’s food contractor purchased a 160-acre farm at Mesquite, Nevada, where 200 cows provided fresh milk, cream, and butter.  Less wholesome was the road to Vegas, where bars and brothels sprang up miles before the workers with pay in their pockets could make it to what in the 1930s was a Las Vegas of only 5,000 people. While gambling had existed illegally there for years, the town secured a legal thumbs up from the Nevada Legislature in 1931, the same year construction began on Hoover Dam. While gambling was legal, drinking was not. In Boulder City, officers seized eight stills and arrested 72 people before Prohibition was repealed in early 1933. 

So how does one go about building a dam as large as Hoover?  First, engineers had to find a way to turn the mighty Colorado River aside so workers could have access to a dry river bed. They did this by driving four tunnels through the canyon walls, two on each side, the intent being to funnel the river past the dam site, then shoot it out below. With temperatures reaching as high as 140 degrees in the tunnels, workers suffered from deadly heat prostration, with a reported death of one worker occurring every two days in the summer of 1933. Not only did the tunnels need to be dug, but also lined with concrete and then grouted to fill any seams or cracks. The sun-scorched desert heat was intense in the open air, as well, where 115 degrees during the day and a low of 95 at night were common during the summer months. Tunnel excavation using traditional drill-and-blast methods proceeded for more than two years, from June 1931 to November 1933. 

When two of the tunnels were finished, excavated rock and gravel were dumped into the river to form a temporary coffer dam, which began diverting the Colorado’s flow into those tunnels on November 14, 1932. Permanent coffer dams were then built, one upstream (98 feet high and 510 feet long) and one downstream (66 feet high and 350 feet long). The “construction stiffs,” as  Fortune  magazine referred to the workers, now were free to attack the canyon walls. Making an average 68 cents an hour, they were lowered over the canyon rim in safety belts or bosun chairs, then used steel bars to knock down any and all loose material, and 44-pound jackhammers to drill powder holes. By the summer of 1933, so many “high scalers,” as they were known, had been killed by rock slides and falling objects that the men took to making improvised hard hats by coating their cloth hats with coal tar, which proved extremely effective. With water diverted and the river bed dry, excavation began for the dam, the powerplants that sit at its toe, and the twin set of graceful intake towers, which stand prominently on the reservoir side of the dam. Using huge power shovels, men labored in shifts, 24 hours a day, removing mud, silt, and rock to reach solid bedrock. Abutments had to be shaped properly and cuts made in the canyon walls to ensure the dam could carry the forthcoming load of more than 41 billion tons. 

Finally, work on the actual dam could begin. Because engineers wanted a single mass, the design called for a series of an estimated 215 vertical columns. The columns were constructed block by block by pouring concrete into square forms varying in size from 25 to 60 feet square. Each block interlocked with the next by vertical and horizontal keyways, like a Lego set. Hoover Dam is a concrete arch-gravity dam, meaning, as explained by the Public Broadcasting Service website “Building Big,” that as tons of water in the reservoir push against the concrete in the dam, compressive forces travel along the dam’s great wall into the cliffs on both sides of the dam.  Because concrete creates great internal heat while hardening, Hoover Dam’s engineers worried about expansion and then contraction of the concrete. To solve the problem they created an artificial cooling system consisting of 590 miles of pipe loops embedded in the concrete with air-cooled or refrigerated water circulating through them. Buckets of concrete, mixed at two plants onsite and transported by rail, were hoisted by one of five, 20-ton cableways strung from canyon rim to canyon rim. During the summer, as each section was poured, it was the sole task of 20 men to keep the concrete moist by spraying the surface with water. Thus was Hoover Dam built, concrete block upon concrete block, the last bucket poured on May 29, 1935. That February 1, even before the last bucket was poured, water began to back up into Lake Mead when a great steel bulkhead in one of the diversion tunnels was lowered. Today, as then,   electrically operated hoists atop the intake towers raise and lower gates below, drawing water in from the reservoir. The water rushes in through headers and down huge pipes called penstocks to the powerhouse, where water flowing at the rate of 2,000 to 3,000 cubic feet per second operates the 17 main turbines that spin the generators that create electricity. 

Combined with the penstocks, a series of pipes known as the outlet system can bypass the turbines and divert water into the river channel downstream if an emergency warrants or if the penstocks need maintenance. In June 1998, a torrent of water shot from the outlet system and sent whitecaps rippling down the Colorado during testing of new jet flow gates that replaced 12 obsolete needle valves in the outlet works. The new gates increased the release capacity from about 50,000 cubic feet per second to 73,000 cubic feet per second. (One cubic foot equals about 7½ gallons.)  In addition, two spillways, 27 feet below the top of the dam, stand ready to send any water reaching that high into tunnels that connect to two of the original diversion tunnels.The other two original diversion tunnels, plugged at strategic points, play a key role, as well, in funneling water to the generators in the powerhouse and to the outlet system. Water never has gone over the top of Hoover Dam, nor is it supposed to, and the spillways have only been used twice. The first time, in 1941, was a test of the system. The second time, in 1983, was during a flood.

Visit the National Park Service  Travel Bureau of Reclamation's Historic Water Projects  to learn more about dams and powerplants.

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Last updated: November 7, 2018

Hoover Dam Discovery via Lake Mead Kayak Tour

• Bottled water
• Kayaks, paddles, and PFDs
• Entry/Admission - Hoover Dam
• Entry/Admission - Mike O'Callaghan - Pat Tillman Memorial Bridge
• Entry/Admission - Lake Mead National Recreation Area
• tips for guides
• Hoover Dam Lodge and Casino, 18000 US-93, Boulder City, NV 89005, USA the Hoover Dam lodge and Casino is at US 93 and Interstate 11.
• Not wheelchair accessible
• Near public transportation
• Confirmation will be received at time of booking
• Travelers should have a moderate physical fitness level
• This experience requires good weather. If it’s canceled due to poor weather, you’ll be offered a different date or a full refund
• This tour/activity will have a maximum of 11 travelers
• For a full refund, cancel at least 24 hours in advance of the start date of the experience.
• Mike O'Callaghan - Pat Tillman Memorial Bridge

Similar experiences

• You'll start at Hoover Dam Lodge and Casino 18000 US-93, Boulder City, NV 89005, USA the Hoover Dam lodge and Casino is at US 93 and Interstate 11. See address & details
• 1 Hoover Dam Stop: 60 minutes - Admission included See details
• 2 Mike O'Callaghan - Pat Tillman Memorial Bridge Stop: 20 minutes - Admission included See details
• 3 Hoover Dam Stop: 40 minutes See details
• 4 Lake Mead National Recreation Area Stop: 3 hours - Admission included See details
• You'll return to the starting point

• O4930THstephc 0 contributions 5.0 of 5 bubbles Great day kayaking to emerald cave We had a great experience kayaking with Dillon and Aries as our tour guides. It was a great day, well paced and fun! Highly recommend for a relaxing day on the water! Read more Written April 20, 2024
• ashleypZ50YR 0 contributions 5.0 of 5 bubbles Awesome, friendly, and fun! We had Dylan and Ares as our tour guides with 5 of us and 14 others. It really was an amazing experience. The river was very calm and we were able to stay cool even though the sun was shining bright! We got squirt guns and our guides were very knowledgeable and talkative with lots of cool facts about the area’s nature and wildlife. They make a point of waiting for the slowest kayakers and guided us on how to kayak efficiently. They provided snacks and drinks and we even took a break and quick swim half way through! The cave was quite calm and the water clarity was amazing, we could see through to the bottom of the emerald water! Very beginner friendly! Read more Written April 20, 2024
• kimrZ5317AJ 0 contributions 5.0 of 5 bubbles Emerald Cave We had a great time and would highly recommend, our first time kayaking! Our guide Salvatore was fantastic! Very knowledgeable about the area and a great personality! Read more Written April 20, 2024
• TimF485 0 contributions 5.0 of 5 bubbles Superb day out - thank you Aaron ! Family of four - we took our two teenage daughters out kayaking on the lake with Aaron. What a great day ! Really easy to book & Aaron was the perfect host with lots of info along the trip on the area, wildlife & geology thrown in for good measure. So much fun, with a lovely stop of a private beach round the lake for lunch after paddling right up to the Hoover dam. Thank you for a great day, lots of fun & many great photos to remember. 👍 Read more Written April 18, 2024
• annelW3702FE 0 contributions 5.0 of 5 bubbles Kyack trip on Colorado River The Kyack trip was really fun. Our tour guides Dylan and Cassidy were fabulous and made the trip fun. The emerald cave was green water and small but unique. I would use this company again. This was the first time Kyacking. I would do again. Read more Written April 18, 2024
• 685ulricb 0 contributions 5.0 of 5 bubbles Great Family Fun Our guides were amazing and ensured we knew what to do the entire time. They were very patient and accommodating. The tour lasted for the four hours and we returned to the marina on time. Read more Written April 18, 2024
• nicolegV1012VO 0 contributions 5.0 of 5 bubbles Fantastic Tour Company With Truly Amazing Guides! My sister and I decided we wanted to do something "unique" (i.e. not gamble or go to a show) while we were visiting Las Vegas - so we opted for an outdoor kayaking adventure. While it was overwhelming to choose from the myriad of companies offering this service, we finally landed on Evolution Expeditions, and boy, they did not disappoint! From our experienced guide and great conversationalist, Burton, to the amazing views and plethora of wildlife - this was an experience we will never forget. We also had the opportunity to meet another Evolution guide named Dylan, who seemed just as friendly and knowledgeable as Burton, so I have no doubt that no matter which guide you end up with for the day, you will thoroughly enjoy your time on the Colorado River (lunch was pretty good too). We even learned a new term from Dylan: "eco-tourist" and because of him and Burton, we will always book some kind of outdoor adventure wherever we travel...and if it's Las Vegas - we will also book with Evolution Expeditions! Read more Written April 15, 2024
• Nomad10618814929 0 contributions 5.0 of 5 bubbles Informative guides. The 2 guides were great and so informative of the river and history. They kept us all moving but at comfortable pace. Evolution Expeditions is a keeper! I would recommend for any adult age. Read more Written April 14, 2024
• K6480CObeckyk 0 contributions 5.0 of 5 bubbles Amazing time!! It was my first time kayaking and let me tell you, AMAZING!!! Our guides Burton and Chris are soo much fun and knowledgeable! Breathtaking views! Lunch was soo good! Just an extremely fun time! Read more Written April 14, 2024
• 4AHIKE 0 contributions 5.0 of 5 bubbles A BEAUTIFUL PADDLE WITH ABSOLUTELY AMAZING VIEWS AND GREAT STAFF AFTER A LOVELY DRIVE TO THE MARINA, THIS WAS AN ABSOLUTELY GORGEOUS TRIP UP THE COLORADO RIVER. THE GUIDE LEADING THE EXPEDITION WAS DYLAN WHO WAS AN ABSOLUTE PLEASURE TO TRAVEL WITH. HE WAS VERY INFORMATIVE, PERSONABLE, HELPFUL AND MADE SURE WE WERE ALL SAFE. HE ANSWERED ANY AND ALL QUESTIONS. HE GAVE US HISTORY OF THE AREA, INFORMATION ON PLANTS, WILDLIFE AND PADDLING TIPS. DYLAN WAS ALSO TRAINING MALEK AND INFORMING HIM OF HISTORY ETC. HE AND MALEK HELPED THE LESS EXPERIENCED PADDLERS. WHETHER YOU ARE NEW TO KAYAKING OR HAVE DONE IT FOR YEARS THIS IS A GREAT TRIP. WE WENT UP TO AN AMAZING LOOKOUT AND HAD TIME FOR A QUICK DIP. SNACKS WERE PROVIDED AND DYLAN MADE SURE WE ALL STAYED HYDRATED. MALEK WAS NEWER BUT ALSO GOOD ABOUT HELPING AND ANSWERING QUESTIONS. Read more Written April 13, 2024
• Amanda D 0 contributions 5.0 of 5 bubbles Day adventure This was fun! Dylan was very patient with us new kayaker’s. Good history lesson with the tour. We had a good time adventuring outside of the Las Vegas strip. Read more Written April 12, 2024
• nellydH5964PI 0 contributions 5.0 of 5 bubbles Highly recommended! Excellent customer service! We hosted a Red Rock Canyon hike for the second time for a corporate group and our clients absolutely loved the experience, everything was executed perfectly: pickup, hike, lunch, return. We would most certainly work again with Evolution Expeditions! Read more Written April 10, 2024
• aaronbW9711PI 0 contributions 5.0 of 5 bubbles An Unforgetable Experience ! Nothing can prepare you for the magic of this tour, the scenery is amazing, the photos just don’t do it justice, paddling down the Colorado River through black canyon should be on your bucket list !. Our guide Dylan was fantastic, so knowledgeable and passionate about the area and made our experience far more enjoyable with his banter and personalized approach. You don’t need to be a kayaking expert, you are taught all the basics and by the time you are coming back from emerald cave you will be flying ! .. I would highly recommend Evolution Expeditions as your tour guide of choice the whole process was seamless and highly organised. Read more Written April 10, 2024
• Culture743353 0 contributions 5.0 of 5 bubbles Amazing time on the Colorado! A trip with Burton the guide was amazing. Full of history and knowledge of all the surroundings was amazing. History of the Colorado knowledge of the local wildlife and horticulture was awesome. Lunch was actually deli sandwiches not a pre-box lunch. Tons of photos to be had. Very professional outfit. Will use again in the future. Thanks Burton for a wonderful day. Read more Written April 9, 2024
• Q9436XKpedroj 0 contributions 5.0 of 5 bubbles Great Experience Ares and Ryan were amazing guides. The hiking at Red Rock was medium intense, which is perfect and the view at the end it's amazing. Read more Written April 9, 2024

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Hoover Dam Discovery via Lake Mead Kayak Tour provided by Evolution Expeditions