J23 170th ST over East River
GoodTaylor County, Iowa · 069331201 · Structure no. 000000000049921
- Built
- 1990
- 35 years old
- Condition
- Good
- inspected May 2023
- Type
- Slab
- Concrete Continuous
- Length
- 128 ft
- 3 main spans
- Daily traffic
- 309
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
J23 170th ST over East River is a concrete continuous slab carrying J23 170th ST over East River in Taylor County, Iowa. It was built in 1990, so it is 35 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 309 vehicles a day, roughly 17% of them trucks, projected to reach 309 by 2043. The structure is 128 ft (39 m) long and 39 ft wide. If it were closed, the detour would be 14.3 mi (23 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 J23 170th ST over East River built?
It was built in 1990, making it 35 years old in 2025.
What condition is J23 170th ST over East 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 May 2023.
How much traffic does J23 170th ST over East River carry?
About 309 vehicles per day (2021 count), of which roughly 17% are trucks.
How long is J23 170th ST over East River?
The structure is 128 ft (39 m) long with a longest span of 49 ft (14.9 m) and a deck 39 ft wide.
Who owns J23 170th ST over East River?
It is owned by the County Highway Agency.