Tampico RD over Milk River
FairValley County, Montana · 2M W Glasgow · Structure no. S00246002+01001
- Built
- 1960
- 65 years old
- Condition
- Fair
- inspected May 2023
- Type
- Girder and Floorbeam System
- Steel Continuous
- Length
- 405 ft
- 3 main spans
- Daily traffic
- 392
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Tampico RD over Milk River is a steel continuous girder and floorbeam system carrying Tampico RD over Milk River in Valley County, Montana. It was built in 1960, so it is 65 years old, older than the Montana average of 47 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 392 vehicles a day, roughly 3% of them trucks, projected to reach 412 by 2043. The structure is 405 ft (123.4 m) long and 27 ft wide. If it were closed, the detour would be 42.3 mi (68 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 | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Tampico RD over Milk River built?
It was built in 1960, making it 65 years old in 2025.
What condition is Tampico RD over Milk River 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 May 2023.
How much traffic does Tampico RD over Milk River carry?
About 392 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is Tampico RD over Milk River?
The structure is 405 ft (123.4 m) long with a longest span of 154 ft (46.9 m) and a deck 27 ft wide.
Who owns Tampico RD over Milk River?
It is owned by the State Highway Agency.