170th ST over Emigrant Creek
GoodCrawford County, Iowa · 084402002 · Structure no. 000000000129431
- Built
- 2000
- 25 years old
- Condition
- Good
- inspected May 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 48 ft
- 1 main span
- Daily traffic
- 26
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
170th ST over Emigrant Creek is a steel stringer/multi-beam or girder carrying 170th ST over Emigrant Creek in Crawford County, Iowa. It was built in 2000, so it is 25 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 26 vehicles a day, projected to reach 26 by 2042. The structure is 48 ft (14.6 m) long and 25 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 8 Very Good | No problems noted. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 170th ST over Emigrant Creek built?
It was built in 2000, making it 25 years old in 2025.
What condition is 170th ST over Emigrant 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 2024.
How much traffic does 170th ST over Emigrant Creek carry?
About 26 vehicles per day (2022 count).
How long is 170th ST over Emigrant Creek?
The structure is 48 ft (14.6 m) long with a longest span of 47 ft (14.3 m) and a deck 25 ft wide.
Who owns 170th ST over Emigrant Creek?
It is owned by the County Highway Agency.