US 71 & Ia 92 over Seven Mile Creek
GoodCass County, Iowa · 0.6 Mi. S of N Jct. Ia 92 · Structure no. 000000000017530
- Built
- 1970
- 55 years old
- Condition
- Good
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 204 ft
- 3 main spans
- Daily traffic
- 2,100
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
US 71 & Ia 92 over Seven Mile Creek is a prestressed concrete stringer/multi-beam or girder carrying US 71 & Ia 92 over Seven Mile Creek in Cass County, Iowa. It was built in 1970, so it is 55 years old, older 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 2,100 vehicles a day, roughly 18% of them trucks, projected to reach 2,100 by 2044. The structure is 204 ft (62.2 m) long and 47 ft wide. If it were closed, the detour would be 9.9 mi (16 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 | 7 Good | Some minor problems. |
| 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 US 71 & Ia 92 over Seven Mile Creek built?
It was built in 1970, making it 55 years old in 2025.
What condition is US 71 & Ia 92 over Seven Mile Creek 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 July 2024.
How much traffic does US 71 & Ia 92 over Seven Mile Creek carry?
About 2,100 vehicles per day (2022 count), of which roughly 18% are trucks.
How long is US 71 & Ia 92 over Seven Mile Creek?
The structure is 204 ft (62.2 m) long with a longest span of 69 ft (21 m) and a deck 47 ft wide.
Who owns US 71 & Ia 92 over Seven Mile Creek?
It is owned by the State Highway Agency.