183rd Ave SW over I-5
GoodThurston County, Washington · 1.5 N JCT US 12 · Structure no. 0008271B0000000
- Built
- 1968
- 57 years old
- Condition
- Good
- inspected November 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 402 ft
- 7 main spans
- Daily traffic
- 2,344
- 2002 count
- Owner
- State
- State Highway Agency
About this bridge
183rd Ave SW over I-5 is a prestressed concrete stringer/multi-beam or girder carrying 183rd Ave SW over I-5 in Thurston County, Washington. It was built in 1968, so it is 57 years old, older 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 2,344 vehicles a day, roughly 1% of them trucks, projected to reach 4,257 by 2036. The structure is 402 ft (122.5 m) long and 32 ft wide. If it were closed, the detour would be 5 mi (8 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 | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 183rd Ave SW over I-5 built?
It was built in 1968, making it 57 years old in 2025.
What condition is 183rd Ave SW over I-5 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 November 2023.
How much traffic does 183rd Ave SW over I-5 carry?
About 2,344 vehicles per day (2002 count), of which roughly 1% are trucks.
How long is 183rd Ave SW over I-5?
The structure is 402 ft (122.5 m) long with a longest span of 61 ft (18.6 m) and a deck 32 ft wide.
Who owns 183rd Ave SW over I-5?
It is owned by the State Highway Agency.