Hoover Dam Area

Massive USA dam on Colorado River, hydroelectric power

Straddling Nevada and Arizona, Hoover Dam tames the Colorado River; visitors tour the concrete arch-gravity structure, descend into the powerplant and view Lake Mead from nearby overlooks on guided tours.

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Hoover Dam at a Glance#

Address: Hoover Dam, US-93 (Boulder City side), NV 89005, United States

Website: https://www.usbr.gov/lc/hooverdam/

Hours: Daily 9am-5pm (Visitor Center/tours; check website)

Admission: Powerplant tour $15; Dam tour $30 (subject to change)

About Hoover Dam#

Hoover Dam is a concrete-arch dam on the Colorado River at the Nevada-Arizona border, constructed in the early 1930s and completed during the mid-1930s. It impounds Lake Mead, a large reservoir that supplies water and hydroelectric power to the U.S. Southwest.

The site is visited for its engineering history, guided tours of the dam and powerplant, and panoramic views of the river gorge and Lake Mead. The visitor centre and public walkways allow views of the dam face and intake structures, and many trips combine a visit with drives into nearby desert recreation areas. Safety measures restrict some areas, and official tours cover the interior turbine halls and maintenance galleries.

The dam was built as a federal public-works project during the Great Depression and employed thousands of workers; it has since been central to regional water management, irrigation and power generation. The facility remains a key piece of infrastructure for several U.S. states.

Hoover Dam stands in a narrow gorge on the Colorado River, about 48 kilometres southeast of Las Vegas and adjacent to the small city of Boulder City, Nevada. It is accessible by road and is a common day trip from Las Vegas.

  • Construction period: Construction took place during the Great Depression, beginning in 1931 and completing in the mid-1930s, with dedication ceremonies in 1935.
  • Dimensions: Height about 221 metres and crest length roughly 379 metres, forming one of the most significant concrete-arch dams in the United States.

What to See#

  • Lake Mead: The reservoir formed upstream of the dam, which is a major recreation and water-supply resource for the region and one of the largest man-made lakes in the United States.
  • Visitor centre and tours: The dam’s public visitor centre and guided tour routes that explain its construction, engineering features and role in regional water management.

How to Get to Hoover Dam#

Hoover Dam is on the Nevada-Arizona border and is most commonly reached from Las Vegas: drive south on US‑93 across the Hoover Dam Bypass (Mike O’Callaghan-Pat Tillman Memorial Bridge) and follow signs to the dam and visitor parking. The dam is roughly 45-50 km (about 30 miles) southeast of the Las Vegas Strip by road; from the parking/visitor area the dam and viewpoints are a short walk.

Tips for Visiting Hoover Dam#

  • Aim for early morning or late afternoon to avoid the midday tourist crush and Nevada-Arizona heat; the pedestrian walkway on the Mike O'Callaghan-Pat Tillman Memorial Bridge provides the best panoramic views of the dam and is often less crowded than the dam plaza.
  • If you want an interior tour, purchase tickets at the official Hoover Dam Visitor Center as soon as it opens-guided powerplant/turbine tours have limited capacity and can sell out.

Best Time to Visit Hoover Dam#

Visit Hoover Dam in the cooler months (fall through spring) to avoid extreme summer heat and enjoy more comfortable sightseeing.

Cooler months (recommended)
October-April · 10-25 °C
Milder temperatures make walking the dam, viewing the structure and nearby Hoover Dam attractions far more comfortable and less risky than in summer.
High summer
June-August · 35-45 °C (often higher in the region)
Extremely hot daytime conditions; outdoor touring is uncomfortable and can be dangerous due to heat - expect large numbers of visitors on holiday weekends.
Shoulder months
May, September · 20-35 °C
Warmer but generally manageable temperatures with moderate visitor levels compared with mid-summer.

Weather & Climate near Hoover Dam#

Climate

Hoover Dam's climate is classified as Hot Desert - Hot Desert climate with very hot summers (peaking in July) and cool winters (coldest in January). Temperatures range from 5°C to 40°C. Very dry conditions with minimal rainfall.

Air Quality: AQI 27 Good
Best Time to Visit
JuneSeptemberMay
Temperature & Rainfall
Temperature Range
48°
Warmest Month
-6°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Excellent 5° - 15° 10° 16 mm some cloud 46% 3.0 m/s 0.5 low 9.8h
February Excellent 7° - 18° 13° 16 mm some cloud 43% 3.4 m/s 0.8 moderate 10.7h
March Excellent 10° - 22° 16° 15 mm some cloud 37% 3.8 m/s 1.3 high 11.8h
April Ideal 13° - 26° 20° 4 mm mostly sunny 29% 4.2 m/s 1.8 very high 13.0h
May Ideal 18° - 32° 25° 4 mm mostly sunny 22% 4.3 m/s 2.2 extreme 14.0h
June Ideal 23° - 37° 30° 2 mm clear 14% 4.3 m/s 2.6 extreme 14.5h
July Ideal 26° - 40° 33° 9 mm mostly sunny 22% 4.0 m/s 2.6 extreme 14.2h
August Excellent 26° - 39° 33° 16 mm clear 24% 3.7 m/s 2.3 extreme 13.4h
September Ideal 22° - 35° 29° 11 mm clear 23% 3.4 m/s 1.8 very high 12.3h
October Ideal 16° - 29° 22° 7 mm mostly sunny 28% 3.2 m/s 1.1 high 11.1h
November Excellent 10° - 21° 15° 9 mm mostly sunny 35% 3.1 m/s 0.6 moderate 10.1h
December Excellent 6° - 16° 11° 10 mm some cloud 46% 2.9 m/s 0.4 low 9.6h

Nearby Attractions to Hoover Dam#