73rd ST over Walnut Creek
GoodPolk County, Iowa · 078250300 · Structure no. 000000000012741
- Built
- 1996
- 29 years old
- Condition
- Good
- inspected May 2023
- Type
- Slab
- Concrete Continuous
- Length
- 205 ft
- 5 main spans
- Daily traffic
- 8,604
- 2022 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
73rd ST over Walnut Creek is a concrete continuous slab carrying 73rd ST over Walnut Creek in Polk County, Iowa. It was built in 1996, so it is 29 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 8,604 vehicles a day, projected to reach 8,604 by 2042. The structure is 205 ft (62.5 m) long and 78 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 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 73rd ST over Walnut Creek built?
It was built in 1996, making it 29 years old in 2025.
What condition is 73rd ST over Walnut 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 May 2023.
How much traffic does 73rd ST over Walnut Creek carry?
About 8,604 vehicles per day (2022 count).
How long is 73rd ST over Walnut Creek?
The structure is 205 ft (62.5 m) long with a longest span of 60 ft (18.3 m) and a deck 78 ft wide.
Who owns 73rd ST over Walnut Creek?
It is owned by the City or Municipal Highway Agency.