SR 99 over Hylebos Creek
FairPierce County, Washington · 1.1 N JCT I-5 · Structure no. 0001105A0000000
- Built
- 1927
- 98 years old, rebuilt 1953
- Condition
- Fair
- inspected June 2024
- Type
- Tee Beam
- Concrete
- Length
- 32 ft
- 1 main span
- Daily traffic
- 23,907
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SR 99 over Hylebos Creek is a concrete tee beam carrying SR 99 over Hylebos Creek in Pierce County, Washington. It was built in 1927 and reconstructed in 1953, so it is 98 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 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 23,907 vehicles a day, roughly 14% of them trucks, projected to reach 33,228 by 2039. The structure is 32 ft (9.8 m) long and 56 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR 99 over Hylebos Creek built?
It was built in 1927, making it 98 years old in 2025. It was reconstructed in 1953.
What condition is SR 99 over Hylebos Creek 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 June 2024.
How much traffic does SR 99 over Hylebos Creek carry?
About 23,907 vehicles per day (2023 count), of which roughly 14% are trucks.
How long is SR 99 over Hylebos Creek?
The structure is 32 ft (9.8 m) long with a longest span of 30 ft (9.1 m) and a deck 56 ft wide.
Who owns SR 99 over Hylebos Creek?
It is owned by the State Highway Agency.