I-5 over SR 501/MILL Plain Blvd
GoodClark County, Washington · 0.7 N JCT SR 14 · Structure no. 0011193B0000000
- Built
- 1979
- 46 years old
- Condition
- Good
- inspected April 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 210 ft
- 1 main span
- Daily traffic
- 52,908
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-5 over SR 501/MILL Plain Blvd is a prestressed concrete box beam or girders - multiple carrying I-5 over SR 501/MILL Plain Blvd in Clark 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 52,908 vehicles a day, roughly 13% of them trucks, projected to reach 77,831 by 2039. The structure is 210 ft (64 m) long and 60 ft wide. If it were closed, the detour would be 1.2 mi (2 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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-5 over SR 501/MILL Plain Blvd built?
It was built in 1979, making it 46 years old in 2025.
What condition is I-5 over SR 501/MILL Plain Blvd 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 I-5 over SR 501/MILL Plain Blvd carry?
About 52,908 vehicles per day (2023 count), of which roughly 13% are trucks.
How long is I-5 over SR 501/MILL Plain Blvd?
The structure is 210 ft (64 m) long with a longest span of 120 ft (36.6 m) and a deck 60 ft wide.
Who owns I-5 over SR 501/MILL Plain Blvd?
It is owned by the State Highway Agency.