I 35 SB over Middle River
GoodWarren County, Iowa · 0.4 Miles South of Ia 92 · Structure no. 000000000051351
- Built
- 2017
- 8 years old
- Condition
- Good
- inspected August 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 337 ft
- 3 main spans
- Daily traffic
- 11,600
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I 35 SB over Middle River is a prestressed concrete stringer/multi-beam or girder carrying I 35 SB over Middle River in Warren County, Iowa. It was built in 2017, so it is 8 years old, younger than the Iowa average of 45.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 11,600 vehicles a day, roughly 27% of them trucks, projected to reach 11,600 by 2043. The structure is 337 ft (102.7 m) long and 63 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I 35 SB over Middle River built?
It was built in 2017, making it 8 years old in 2025.
What condition is I 35 SB over Middle River in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2023.
How much traffic does I 35 SB over Middle River carry?
About 11,600 vehicles per day (2023 count), of which roughly 27% are trucks.
How long is I 35 SB over Middle River?
The structure is 337 ft (102.7 m) long with a longest span of 137 ft (41.8 m) and a deck 63 ft wide.
Who owns I 35 SB over Middle River?
It is owned by the State Highway Agency.