Anita Res Acc RD over Anita Dam Spillway
PoorPosted for loadYellowstone County, Montana · 7.2 MI E-Se of Ballantine · Structure no. MTA-HP-001
- Built
- 1937
- 88 years old
- Condition
- Poor
- inspected September 2023
- Type
- Slab
- Concrete Continuous
- Length
- 43 ft
- 3 main spans
- Daily traffic
- 10
- 2011 count
- Owner
- Federal
- Bureau of Reclamation
About this bridge
Anita Res Acc RD over Anita Dam Spillway is a concrete continuous slab carrying Anita Res Acc RD over Anita Dam Spillway in Yellowstone County, Montana. It was built in 1937, so it is 88 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 10 vehicles a day, projected to reach 11 by 2042. The structure is 43 ft (13 m) long and 13 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, 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 Anita Res Acc RD over Anita Dam Spillway built?
It was built in 1937, making it 88 years old in 2025.
What condition is Anita Res Acc RD over Anita Dam Spillway 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 September 2023.
How much traffic does Anita Res Acc RD over Anita Dam Spillway carry?
About 10 vehicles per day (2011 count).
How long is Anita Res Acc RD over Anita Dam Spillway?
The structure is 43 ft (13 m) long with a longest span of 14 ft (4.2 m) and a deck 13 ft wide.
Who owns Anita Res Acc RD over Anita Dam Spillway?
It is owned by the Bureau of Reclamation and maintained by the Other Local Agency.