Robertson Road over Berg Slough
GoodGrays Harbor County, Washington · 00.2 W JCT 9415 · Structure no. 081054000000000
- Built
- 1979
- 46 years old
- Condition
- Good
- inspected April 2024
- Type
- Slab
- Prestressed Concrete
- Length
- 63 ft
- 3 main spans
- Daily traffic
- 26
- 2024 count
- Owner
- County
- County Highway Agency
About this bridge
Robertson Road over Berg Slough is a prestressed concrete slab carrying Robertson Road over Berg Slough in Grays Harbor County, Washington. It was built in 1979, so it is 46 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 26 vehicles a day, roughly 27% of them trucks, projected to reach 32 by 2040. The structure is 63 ft (19.1 m) long and 24 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 Robertson Road over Berg Slough built?
It was built in 1979, making it 46 years old in 2025.
What condition is Robertson Road over Berg Slough 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 April 2024.
How much traffic does Robertson Road over Berg Slough carry?
About 26 vehicles per day (2024 count), of which roughly 27% are trucks.
How long is Robertson Road over Berg Slough?
The structure is 63 ft (19.1 m) long with a longest span of 25 ft (7.6 m) and a deck 24 ft wide.
Who owns Robertson Road over Berg Slough?
It is owned by the County Highway Agency.