Delphi RD over US 101
FairThurston County, Washington · 1.8 E JCT SR 8 · Structure no. 0005396A0000000
- Built
- 1958
- 67 years old
- Condition
- Fair
- inspected November 2023
- Type
- Slab
- Concrete Continuous
- Length
- 190 ft
- 4 main spans
- Daily traffic
- 2,631
- 2002 count
- Owner
- State
- State Highway Agency
About this bridge
Delphi RD over US 101 is a concrete continuous slab carrying Delphi RD over US 101 in Thurston 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 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 2,631 vehicles a day, roughly 10% of them trucks, projected to reach 4,778 by 2036. The structure is 190 ft (57.9 m) long and 33 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Delphi RD over US 101 built?
It was built in 1958, making it 67 years old in 2025.
What condition is Delphi RD over US 101 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 November 2023.
How much traffic does Delphi RD over US 101 carry?
About 2,631 vehicles per day (2002 count), of which roughly 10% are trucks.
How long is Delphi RD over US 101?
The structure is 190 ft (57.9 m) long with a longest span of 47 ft (14.3 m) and a deck 33 ft wide.
Who owns Delphi RD over US 101?
It is owned by the State Highway Agency.