S 84th ST over I-5
FairPierce County, Washington · 1.4 N JCT SR 512 · Structure no. 0005667C0000000
- Built
- 1958
- 67 years old
- Condition
- Fair
- inspected March 2024
- Type
- Slab
- Concrete Continuous
- Length
- 141 ft
- 2 main spans
- Daily traffic
- 21,134
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
S 84th ST over I-5 is a concrete continuous slab carrying S 84th ST over I-5 in Pierce County, Washington. It was built in 1958, so it is 67 years old, older than the Washington average of 49.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 21,134 vehicles a day, roughly 2% of them trucks, projected to reach 30,602 by 2039. The structure is 141 ft (43 m) long and 64 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S 84th ST over I-5 built?
It was built in 1958, making it 67 years old in 2025.
What condition is S 84th ST over I-5 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 March 2024.
How much traffic does S 84th ST over I-5 carry?
About 21,134 vehicles per day (2019 count), of which roughly 2% are trucks.
How long is S 84th ST over I-5?
The structure is 141 ft (43 m) long with a longest span of 69 ft (21 m) and a deck 64 ft wide.
Who owns S 84th ST over I-5?
It is owned by the State Highway Agency.