Lyndale Ave-Us 12 over Great Northern Area
GoodLewis and Clark County, Montana · Helena-Lyndale Ave · Structure no. P00008043+03061
- Built
- 2003
- 22 years old
- Condition
- Good
- inspected October 2024
- Type
- Arch - Deck
- Concrete
- Length
- 20 ft
- 1 main span
- Daily traffic
- 20,397
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Lyndale Ave-Us 12 over Great Northern Area is a concrete arch - deck carrying Lyndale Ave-Us 12 over Great Northern Area in Lewis and Clark County, Montana. It was built in 2003, so it is 22 years old, younger than the Montana average of 47 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 20,397 vehicles a day, roughly 2% of them trucks, projected to reach 21,417 by 2043. The structure is 20 ft (6.1 m) long and 98 ft wide.
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 Lyndale Ave-Us 12 over Great Northern Area built?
It was built in 2003, making it 22 years old in 2025.
What condition is Lyndale Ave-Us 12 over Great Northern Area 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 October 2024.
How much traffic does Lyndale Ave-Us 12 over Great Northern Area carry?
About 20,397 vehicles per day (2023 count), of which roughly 2% are trucks.
How long is Lyndale Ave-Us 12 over Great Northern Area?
The structure is 20 ft (6.1 m) long with a longest span of 20 ft (6.1 m) and a deck 98 ft wide.
Who owns Lyndale Ave-Us 12 over Great Northern Area?
It is owned by the State Highway Agency.