Nelson Siding Road over Big Creek
GoodKittitas County, Washington · 01.45 SE of I-90 · Structure no. 088516000000000
- Built
- 2012
- 13 years old
- Condition
- Good
- inspected October 2024
- Type
- Slab
- Concrete
- Length
- 70 ft
- 1 main span
- Daily traffic
- 643
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
Nelson Siding Road over Big Creek is a concrete slab carrying Nelson Siding Road over Big Creek in Kittitas County, Washington. It was built in 2012, so it is 13 years old, younger 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 643 vehicles a day, roughly 27% of them trucks, projected to reach 1,703 by 2042. The structure is 70 ft (21.3 m) long and 32 ft wide. If it were closed, the detour would be 8.7 mi (14 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| 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 Nelson Siding Road over Big Creek built?
It was built in 2012, making it 13 years old in 2025.
What condition is Nelson Siding Road over Big Creek 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 October 2024.
How much traffic does Nelson Siding Road over Big Creek carry?
About 643 vehicles per day (2022 count), of which roughly 27% are trucks.
How long is Nelson Siding Road over Big Creek?
The structure is 70 ft (21.3 m) long with a longest span of 68 ft (20.7 m) and a deck 32 ft wide.
Who owns Nelson Siding Road over Big Creek?
It is owned by the County Highway Agency.