SR 516 over Mullen Slough & Dirt Rd.
GoodKing County, Washington · 1.8 E JCT I-5 · Structure no. 0012191A0000000
- Built
- 1983
- 42 years old
- Condition
- Good
- inspected September 2023
- Type
- Slab
- Concrete Continuous
- Length
- 266 ft
- 6 main spans
- Daily traffic
- 12,389
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SR 516 over Mullen Slough & Dirt Rd. is a concrete continuous slab carrying SR 516 over Mullen Slough & Dirt Rd. in King County, Washington. It was built in 1983, so it is 42 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 12,389 vehicles a day, roughly 5% of them trucks, projected to reach 16,254 by 2039. The structure is 266 ft (81.1 m) long and 88 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 SR 516 over Mullen Slough & Dirt Rd. built?
It was built in 1983, making it 42 years old in 2025.
What condition is SR 516 over Mullen Slough & Dirt Rd. 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 September 2023.
How much traffic does SR 516 over Mullen Slough & Dirt Rd. carry?
About 12,389 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is SR 516 over Mullen Slough & Dirt Rd.?
The structure is 266 ft (81.1 m) long with a longest span of 46 ft (13.9 m) and a deck 88 ft wide.
Who owns SR 516 over Mullen Slough & Dirt Rd.?
It is owned by the State Highway Agency.