W Mill Plain Blvd over Bn RR
GoodClark County, Washington · 1.1 N JCT I-5 · Structure no. 002003640000000
- Built
- 1999
- 26 years old
- Condition
- Good
- inspected November 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 631 ft
- 6 main spans
- Daily traffic
- 7,290
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
W Mill Plain Blvd over Bn RR is a prestressed concrete continuous stringer/multi-beam or girder carrying W Mill Plain Blvd over Bn RR in Clark County, Washington. It was built in 1999, so it is 26 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 7,290 vehicles a day, roughly 25% of them trucks, projected to reach 10,797 by 2039. The structure is 631 ft (192.3 m) long and 81 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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was W Mill Plain Blvd over Bn RR built?
It was built in 1999, making it 26 years old in 2025.
What condition is W Mill Plain Blvd over Bn RR 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 November 2023.
How much traffic does W Mill Plain Blvd over Bn RR carry?
About 7,290 vehicles per day (2023 count), of which roughly 25% are trucks.
How long is W Mill Plain Blvd over Bn RR?
The structure is 631 ft (192.3 m) long with a longest span of 118 ft (36 m) and a deck 81 ft wide.
Who owns W Mill Plain Blvd over Bn RR?
It is owned by the State Highway Agency.