Ia 28 over North River
FairWarren County, Iowa · 0.6 Miles N of SR G24 · Structure no. 000000000051051
- Built
- 1983
- 42 years old
- Condition
- Fair
- inspected March 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 238 ft
- 3 main spans
- Daily traffic
- 5,900
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Ia 28 over North River is a prestressed concrete stringer/multi-beam or girder carrying Ia 28 over North River in Warren County, Iowa. It was built in 1983, so it is 42 years old, younger 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 5,900 vehicles a day, roughly 10% of them trucks, projected to reach 5,900 by 2042. The structure is 238 ft (72.5 m) long and 43 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 8 Very Good | No problems noted. |
| 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 Ia 28 over North River built?
It was built in 1983, making it 42 years old in 2025.
What condition is Ia 28 over North 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 March 2023.
How much traffic does Ia 28 over North River carry?
About 5,900 vehicles per day (2022 count), of which roughly 10% are trucks.
How long is Ia 28 over North River?
The structure is 238 ft (72.5 m) long with a longest span of 82 ft (25 m) and a deck 43 ft wide.
Who owns Ia 28 over North River?
It is owned by the State Highway Agency.