Frontier Street over Clallam Slough
PoorPosted for loadClallam County, Washington · 0.19 E SR112 · Structure no. 082805000000000
- Built
- 1959
- 66 years old
- Condition
- Poor
- inspected January 2024
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 62 ft
- 4 main spans
- Daily traffic
- 400
- 2017 count
- Owner
- County
- County Highway Agency
About this bridge
Frontier Street over Clallam Slough is a wood or timber stringer/multi-beam or girder carrying Frontier Street over Clallam Slough in Clallam County, Washington. It was built in 1959, so it is 66 years old, older than the Washington average of 49.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.
It carries about 400 vehicles a day, roughly 13% of them trucks, projected to reach 630 by 2037. The structure is 62 ft (18.9 m) long and 25 ft wide. If it were closed, the detour would be 98.8 mi (159 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Frontier Street over Clallam Slough built?
It was built in 1959, making it 66 years old in 2025.
What condition is Frontier Street over Clallam Slough in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in January 2024.
How much traffic does Frontier Street over Clallam Slough carry?
About 400 vehicles per day (2017 count), of which roughly 13% are trucks.
How long is Frontier Street over Clallam Slough?
The structure is 62 ft (18.9 m) long with a longest span of 15 ft (4.6 m) and a deck 25 ft wide.
Who owns Frontier Street over Clallam Slough?
It is owned by the County Highway Agency.