US 71 over E Nishnabotna River
GoodCarroll County, Iowa · 0.8 Mi. S of S JCT Ia 141 · Structure no. 000000000017121
- Built
- 1999
- 26 years old
- Condition
- Good
- inspected February 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 160 ft
- 3 main spans
- Daily traffic
- 1,970
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
US 71 over E Nishnabotna River is a prestressed concrete stringer/multi-beam or girder carrying US 71 over E Nishnabotna River in Carroll County, Iowa. It was built in 1999, so it is 26 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 1,970 vehicles a day, roughly 17% of them trucks, projected to reach 1,970 by 2043. The structure is 160 ft (48.8 m) long and 47 ft wide. If it were closed, the detour would be 16.8 mi (27 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 | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 71 over E Nishnabotna River built?
It was built in 1999, making it 26 years old in 2025.
What condition is US 71 over E Nishnabotna 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 February 2023.
How much traffic does US 71 over E Nishnabotna River carry?
About 1,970 vehicles per day (2022 count), of which roughly 17% are trucks.
How long is US 71 over E Nishnabotna River?
The structure is 160 ft (48.8 m) long with a longest span of 52 ft (15.9 m) and a deck 47 ft wide.
Who owns US 71 over E Nishnabotna River?
It is owned by the State Highway Agency.