US 169 over Middle River
FairMadison County, Iowa · 2.2 Mi. S of S Jct. Ia 92 · Structure no. 000000000607180
- Built
- 1976
- 49 years old
- Condition
- Fair
- inspected October 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 293 ft
- 3 main spans
- Daily traffic
- 1,890
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
US 169 over Middle River is a prestressed concrete stringer/multi-beam or girder carrying US 169 over Middle River in Madison County, Iowa. It was built in 1976, so it is 49 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 5 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 1,890 vehicles a day, roughly 11% of them trucks, projected to reach 1,890 by 2043. The structure is 293 ft (89.3 m) long and 47 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 169 over Middle River built?
It was built in 1976, making it 49 years old in 2025.
What condition is US 169 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 October 2023.
How much traffic does US 169 over Middle River carry?
About 1,890 vehicles per day (2022 count), of which roughly 11% are trucks.
How long is US 169 over Middle River?
The structure is 293 ft (89.3 m) long with a longest span of 97 ft (29.6 m) and a deck 47 ft wide.
Who owns US 169 over Middle River?
It is owned by the State Highway Agency.