Old HWY 99 S over I-5
FairSkagit County, Washington · 2.9 N JCT SR 534 · Structure no. 0009392A0000000
- Built
- 1972
- 53 years old
- Condition
- Fair
- inspected May 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 230 ft
- 2 main spans
- Daily traffic
- 1,887
- 2016 count
- Owner
- State
- State Highway Agency
About this bridge
Old HWY 99 S over I-5 is a prestressed concrete continuous stringer/multi-beam or girder carrying Old HWY 99 S over I-5 in Skagit County, Washington. It was built in 1972, so it is 53 years old, older than the Washington average of 49.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 1,887 vehicles a day, roughly 1% of them trucks, projected to reach 3,152 by 2038. The structure is 230 ft (70.1 m) long and 43 ft wide.
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Old HWY 99 S over I-5 built?
It was built in 1972, making it 53 years old in 2025.
What condition is Old HWY 99 S over I-5 in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2024.
How much traffic does Old HWY 99 S over I-5 carry?
About 1,887 vehicles per day (2016 count), of which roughly 1% are trucks.
How long is Old HWY 99 S over I-5?
The structure is 230 ft (70.1 m) long with a longest span of 115 ft (35.2 m) and a deck 43 ft wide.
Who owns Old HWY 99 S over I-5?
It is owned by the State Highway Agency.