Old Town RD over Jefferson River 004
PoorPosted for loadGallatin County, Montana · 2M N Three Forks · Structure no. L04419003+05001
- Built
- 1897
- 128 years old
- Condition
- Poor
- inspected July 2024
- Type
- Truss - Thru
- Steel
- Length
- 193 ft
- 1 main span
- Daily traffic
- 100
- 2025 count
- Owner
- County
- County Highway Agency
About this bridge
Old Town RD over Jefferson River 004 is a steel truss - thru carrying Old Town RD over Jefferson River 004 in Gallatin County, Montana. It was built in 1897, so it is 128 years old, older than the Montana average of 47 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.
It carries about 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 193 ft (58.8 m) long and 15 ft wide. If it were closed, the detour would be 9.9 mi (16 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Old Town RD over Jefferson River 004 built?
It was built in 1897, making it 128 years old in 2025.
What condition is Old Town RD over Jefferson River 004 in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2024.
How much traffic does Old Town RD over Jefferson River 004 carry?
About 100 vehicles per day (2025 count), of which roughly 3% are trucks.
How long is Old Town RD over Jefferson River 004?
The structure is 193 ft (58.8 m) long with a longest span of 130 ft (39.6 m) and a deck 15 ft wide.
Who owns Old Town RD over Jefferson River 004?
It is owned by the County Highway Agency.