Visitor Center Br over Bonneville Dam
FairMultnomah County, Oregon · Mainstem Fishladder Br. · Structure no. CEPNPPOR000BD02
- Built
- 1935
- 90 years old
- Condition
- Fair
- inspected September 2024
- Type
- Slab
- Concrete Continuous
- Length
- 49 ft
- 1 main span
- Daily traffic
- 1,000
- 2024 count
- Owner
- Federal
- Corps of Engineers (Civil)
About this bridge
Visitor Center Br over Bonneville Dam is a concrete continuous slab carrying Visitor Center Br over Bonneville Dam in Multnomah County, Oregon. It was built in 1935, so it is 90 years old, older than the Oregon average of 49.9 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 1,000 vehicles a day, roughly 15% of them trucks, projected to reach 1,000 by 2044. The structure is 49 ft (14.9 m) long and 27 ft wide. If it were closed, the detour would be 123.7 mi (199 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Visitor Center Br over Bonneville Dam built?
It was built in 1935, making it 90 years old in 2025.
What condition is Visitor Center Br over Bonneville Dam in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2024.
How much traffic does Visitor Center Br over Bonneville Dam carry?
About 1,000 vehicles per day (2024 count), of which roughly 15% are trucks.
How long is Visitor Center Br over Bonneville Dam?
The structure is 49 ft (14.9 m) long with a longest span of 42 ft (12.8 m) and a deck 27 ft wide.
Who owns Visitor Center Br over Bonneville Dam?
It is owned by the Corps of Engineers (Civil).