Bonneville Dam Visitor Tour — Cascade Locks, Oregon

Discover the Bonneville Dam Visitor Tour in Oregon

The Bonneville Dam Visitor Tour in Cascade Locks, Oregon offers an in-depth look at one of the most important hydroelectric and flood-control projects in the Pacific Northwest. This guided and self-guided industrial tour takes visitors inside a working hydroelectric dam on the Columbia River, where massive turbines generate renewable power and fish ladders support salmon migration. Ideal for families, engineering fans, and travelers exploring the Columbia River Gorge, the experience blends infrastructure, energy production, and environmental stewardship.
Why it’s special:
Bonneville Dam is a fully operational federal hydroelectric facility. Visitors explore real powerhouses, observe fish ladders up close, and learn how renewable energy and river management work at regional scale.

History & Story of Bonneville Dam

Bonneville Dam was constructed in the 1930s by the U.S. Army Corps of Engineers as part of New Deal infrastructure projects. Completed in 1938, the dam became a cornerstone of hydroelectric power generation, navigation, and flood control on the Columbia River. Over time, Bonneville also became a leader in fish passage innovation, balancing energy production with environmental responsibility.

What You’ll See & Do on the Bonneville Dam Visitor Tour

• Visit a working hydroelectric dam

• See massive turbines and generator equipment

• Learn how hydroelectric power is produced

• Observe salmon and steelhead at the fish ladders (seasonal)

• Explore interactive exhibits and historical displays

• Learn about river navigation, flood control, and ecology

Hands-On Elements: Interactive exhibits and observation decks.
Photo/Video Policy: Photography allowed in visitor and observation areas.
Souvenirs & Extras: Visitor center exhibits and educational materials; no traditional gift shop.

Pricing of the Bonneville Dam Visitor Tour

• Visitor center access and self-guided exploration

• Adult price: $0 per adult (free)

• Guided powerhouse tours included when available

Visiting information

Most visits last 60–90 minutes and follow a self-guided format, with guided powerhouse tours offered seasonally. The experience is suitable for all ages and is fully accessible. Comfortable walking shoes are recommended due to large indoor and outdoor areas.

Exact Visitor Center & Tour Hours:

• Visitor Centers: Daily, 9:00 AM–5:00 PM

• Guided Powerhouse Tours:

  • May–September: Daily at 10:00 AM, 12:00 PM, 2:00 PM

  • October–April: Not offered

• Closed: Major federal holidays only

Nearby

• Columbia River Gorge Scenic Area

• Cascade Locks waterfront

• Multnomah Falls (short drive)

FAQs About Visiting the Bonneville Dam Visitor Tour

Is Bonneville Dam still generating electricity?
Yes, Bonneville Dam is an active hydroelectric facility producing renewable power daily.

Do I need to reserve a guided tour?
Reservations are not required, but guided tours are seasonal and first-come, first-served.

When is the best time to see fish at the dam?
Salmon and steelhead runs are most visible from spring through fall.

Is the tour suitable for children?
Yes, the visitor centers include kid-friendly exhibits and observation areas.

Is the facility accessible for visitors with disabilities?
Yes, visitor centers and main viewing areas are fully accessible.