Mill Plain Blvd over I-205
FairClark County, Washington · 1.3 N JCT SR 14 · Structure no. 0009737B0000000
- Built
- 1975
- 50 years old
- Condition
- Fair
- inspected April 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 339 ft
- 2 main spans
- Daily traffic
- 45,586
- 2012 count
- Owner
- State
- State Highway Agency
About this bridge
Mill Plain Blvd over I-205 is a prestressed concrete continuous box beam or girders - multiple carrying Mill Plain Blvd over I-205 in Clark County, Washington. It was built in 1975, so it is 50 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 45,586 vehicles a day, roughly 10% of them trucks, projected to reach 75,126 by 2036. The structure is 339 ft (103.3 m) long and 97 ft wide. If it were closed, the detour would be 1.9 mi (3 km).
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 Mill Plain Blvd over I-205 built?
It was built in 1975, making it 50 years old in 2025.
What condition is Mill Plain Blvd over I-205 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 April 2024.
How much traffic does Mill Plain Blvd over I-205 carry?
About 45,586 vehicles per day (2012 count), of which roughly 10% are trucks.
How long is Mill Plain Blvd over I-205?
The structure is 339 ft (103.3 m) long with a longest span of 171 ft (52.1 m) and a deck 97 ft wide.
Who owns Mill Plain Blvd over I-205?
It is owned by the State Highway Agency.