SB SR 16 over Tacoma Narrows
GoodPierce County, Washington · 1.5 N JCT SR 163 · Structure no. 0016441A0000000
- Built
- 2007
- 18 years old
- Condition
- Good
- inspected August 2024
- Type
- Suspension
- Steel Continuous
- Length
- 5,570 ft
- 3 main spans
- Daily traffic
- 44,741
- 2023 count
- Owner
- Toll Authority
- State Toll Authority
About this bridge
SB SR 16 over Tacoma Narrows is a steel continuous suspension carrying SB SR 16 over Tacoma Narrows in Pierce County, Washington. It was built in 2007, so it is 18 years old, younger than the Washington average of 49.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 44,741 vehicles a day, roughly 5% of them trucks, projected to reach 62,831 by 2039. The structure is 5,570 ft (1,697.7 m) long and 67 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SB SR 16 over Tacoma Narrows built?
It was built in 2007, making it 18 years old in 2025.
What condition is SB SR 16 over Tacoma Narrows in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2024.
How much traffic does SB SR 16 over Tacoma Narrows carry?
About 44,741 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is SB SR 16 over Tacoma Narrows?
The structure is 5,570 ft (1,697.7 m) long with a longest span of 2,800 ft (853.4 m) and a deck 67 ft wide.
Who owns SB SR 16 over Tacoma Narrows?
It is owned by the State Toll Authority and maintained by the State Highway Agency.