Antique Co.Dr over Middle River
FairAdair County, Iowa · 77320352 · Structure no. 000000000001020
- Built
- 1958
- 67 years old, rebuilt 2001
- Condition
- Fair
- inspected May 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 158 ft
- 3 main spans
- Daily traffic
- 969
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
Antique Co.Dr over Middle River is a prestressed concrete stringer/multi-beam or girder carrying Antique Co.Dr over Middle River in Adair County, Iowa. It was built in 1958 and reconstructed in 2001, so it is 67 years old, older than the Iowa average of 45.5 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 969 vehicles a day, roughly 20% of them trucks, projected to reach 969 by 2044. The structure is 158 ft (48.2 m) long and 33 ft wide. If it were closed, the detour would be 8.7 mi (14 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 | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Antique Co.Dr over Middle River built?
It was built in 1958, making it 67 years old in 2025. It was reconstructed in 2001.
What condition is Antique Co.Dr over Middle 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 2024.
How much traffic does Antique Co.Dr over Middle River carry?
About 969 vehicles per day (2022 count), of which roughly 20% are trucks.
How long is Antique Co.Dr over Middle River?
The structure is 158 ft (48.2 m) long with a longest span of 52 ft (15.9 m) and a deck 33 ft wide.
Who owns Antique Co.Dr over Middle River?
It is owned by the County Highway Agency and maintained by the City or Municipal Highway Agency.