US 71 over Longs Branch
GoodMontgomery County, Iowa · 1.8 Mi. N of N JCT SR H34 · Structure no. 000000000037641
- Built
- 1970
- 55 years old
- Condition
- Good
- inspected December 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 163 ft
- 3 main spans
- Daily traffic
- 1,390
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
US 71 over Longs Branch is a prestressed concrete stringer/multi-beam or girder carrying US 71 over Longs Branch in Montgomery 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 1,390 vehicles a day, roughly 22% of them trucks, projected to reach 1,390 by 2044. The structure is 163 ft (49.7 m) long and 47 ft wide. If it were closed, the detour would be 11.8 mi (19 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 71 over Longs Branch built?
It was built in 1970, making it 55 years old in 2025.
What condition is US 71 over Longs Branch 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 December 2024.
How much traffic does US 71 over Longs Branch carry?
About 1,390 vehicles per day (2022 count), of which roughly 22% are trucks.
How long is US 71 over Longs Branch?
The structure is 163 ft (49.7 m) long with a longest span of 65 ft (19.8 m) and a deck 47 ft wide.
Who owns US 71 over Longs Branch?
It is owned by the State Highway Agency.