South Prairie Road over Killam Creek
GoodTillamook County, Oregon · 050MI Southeast Tillamook · Structure no. 20630 765 00200
- Built
- 2006
- 19 years old
- Condition
- Good
- inspected June 2023
- Type
- Slab
- Prestressed Concrete
- Length
- 80 ft
- 1 main span
- Daily traffic
- 1,697
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
South Prairie Road over Killam Creek is a prestressed concrete slab carrying South Prairie Road over Killam Creek in Tillamook County, Oregon. It was built in 2006, so it is 19 years old, younger than the Oregon average of 49.9 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 1,697 vehicles a day, roughly 15% of them trucks, projected to reach 2,017 by 2025. The structure is 80 ft (24.4 m) long and 36 ft wide. If it were closed, the detour would be 1.9 mi (3 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. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was South Prairie Road over Killam Creek built?
It was built in 2006, making it 19 years old in 2025.
What condition is South Prairie Road over Killam 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 June 2023.
How much traffic does South Prairie Road over Killam Creek carry?
About 1,697 vehicles per day (2020 count), of which roughly 15% are trucks.
How long is South Prairie Road over Killam Creek?
The structure is 80 ft (24.4 m) long with a longest span of 80 ft (24.4 m) and a deck 36 ft wide.
Who owns South Prairie Road over Killam Creek?
It is owned by the County Highway Agency.