Alkali RD over Alkali Creek 001
PoorPosted for loadPhillips County, Montana · 7M SW Malta · Structure no. L36221004+01001
- Built
- 1920
- 105 years old, rebuilt 1982
- Condition
- Poor
- inspected May 2024
- Type
- Truss - Thru
- Steel
- Length
- 76 ft
- 1 main span
- Daily traffic
- 100
- 2025 count
- Owner
- County
- County Highway Agency
About this bridge
Alkali RD over Alkali Creek 001 is a steel truss - thru carrying Alkali RD over Alkali Creek 001 in Phillips County, Montana. It was built in 1920 and reconstructed in 1982, so it is 105 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 76 ft (23.3 m) long and 16 ft wide. If it were closed, the detour would be 23 mi (37 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Alkali RD over Alkali Creek 001 built?
It was built in 1920, making it 105 years old in 2025. It was reconstructed in 1982.
What condition is Alkali RD over Alkali Creek 001 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 May 2024.
How much traffic does Alkali RD over Alkali Creek 001 carry?
About 100 vehicles per day (2025 count), of which roughly 3% are trucks.
How long is Alkali RD over Alkali Creek 001?
The structure is 76 ft (23.3 m) long with a longest span of 60 ft (18.3 m) and a deck 16 ft wide.
Who owns Alkali RD over Alkali Creek 001?
It is owned by the County Highway Agency.