I 15 over Sep Neuman Sch RD
GoodCascade County, Montana · 2M N Vaughn · Structure no. I00015292+01892
- Built
- 1972
- 53 years old
- Condition
- Good
- inspected December 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 124 ft
- 3 main spans
- Daily traffic
- 2,026
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I 15 over Sep Neuman Sch RD is a prestressed concrete stringer/multi-beam or girder carrying I 15 over Sep Neuman Sch RD in Cascade County, Montana. It was built in 1972, so it is 53 years old, older 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 2,026 vehicles a day, roughly 21% of them trucks, projected to reach 2,127 by 2043. The structure is 124 ft (37.8 m) long and 44 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 | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I 15 over Sep Neuman Sch RD built?
It was built in 1972, making it 53 years old in 2025.
What condition is I 15 over Sep Neuman Sch RD 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 December 2024.
How much traffic does I 15 over Sep Neuman Sch RD carry?
About 2,026 vehicles per day (2023 count), of which roughly 21% are trucks.
How long is I 15 over Sep Neuman Sch RD?
The structure is 124 ft (37.8 m) long with a longest span of 61 ft (18.7 m) and a deck 44 ft wide.
Who owns I 15 over Sep Neuman Sch RD?
It is owned by the State Highway Agency.