US 59 & Ia 175 over Maple River
FairIda County, Iowa · 1 Mi. S of N Jct. Ia 175 · Structure no. 000000000029141
- Built
- 1989
- 36 years old
- Condition
- Fair
- inspected October 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 334 ft
- 5 main spans
- Daily traffic
- 3,880
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 59 & Ia 175 over Maple River is a prestressed concrete stringer/multi-beam or girder carrying US 59 & Ia 175 over Maple River in Ida County, Iowa. It was built in 1989, so it is 36 years old, younger than the Iowa average of 45.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 3,880 vehicles a day, roughly 14% of them trucks, projected to reach 3,880 by 2043. The structure is 334 ft (101.8 m) long and 43 ft wide. If it were closed, the detour would be 19.3 mi (31 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 59 & Ia 175 over Maple River built?
It was built in 1989, making it 36 years old in 2025.
What condition is US 59 & Ia 175 over Maple River in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2023.
How much traffic does US 59 & Ia 175 over Maple River carry?
About 3,880 vehicles per day (2023 count), of which roughly 14% are trucks.
How long is US 59 & Ia 175 over Maple River?
The structure is 334 ft (101.8 m) long with a longest span of 97 ft (29.6 m) and a deck 43 ft wide.
Who owns US 59 & Ia 175 over Maple River?
It is owned by the State Highway Agency.