W 4th Avenue over Fill Slope
FairThurston County, Washington · 4th Avenue · Structure no. 087504000000000
- Built
- 2004
- 21 years old
- Condition
- Fair
- inspected September 2024
- Type
- Box Beam or Girders - Single or Spread
- Prestressed Concrete Continuous
- Length
- 140 ft
- 3 main spans
- Daily traffic
- 20,060
- 2020 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
W 4th Avenue over Fill Slope is a prestressed concrete continuous box beam or girders - single or spread carrying W 4th Avenue over Fill Slope in Thurston County, Washington. It was built in 2004, so it is 21 years old, younger 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 20,060 vehicles a day, roughly 5% of them trucks, projected to reach 23,000 by 2036. The structure is 140 ft (42.7 m) long and 54 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 | 7 Good | Some minor problems. |
| 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 W 4th Avenue over Fill Slope built?
It was built in 2004, making it 21 years old in 2025.
What condition is W 4th Avenue over Fill Slope 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 September 2024.
How much traffic does W 4th Avenue over Fill Slope carry?
About 20,060 vehicles per day (2020 count), of which roughly 5% are trucks.
How long is W 4th Avenue over Fill Slope?
The structure is 140 ft (42.7 m) long with a longest span of 73 ft (22.3 m) and a deck 54 ft wide.
Who owns W 4th Avenue over Fill Slope?
It is owned by the City or Municipal Highway Agency.