US 59 over Lyon Creek
FairShelby County, Iowa · 2.6 Mi. S of Jct. Ia 37 · Structure no. 000000000047800
- Built
- 1970
- 55 years old
- Condition
- Fair
- inspected May 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 192 ft
- 3 main spans
- Daily traffic
- 3,240
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 59 over Lyon Creek is a prestressed concrete stringer/multi-beam or girder carrying US 59 over Lyon Creek in Shelby 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 fair condition with a lowest component rating of 5 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 3,240 vehicles a day, roughly 20% of them trucks, projected to reach 3,240 by 2043. The structure is 192 ft (58.5 m) long and 47 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 US 59 over Lyon Creek built?
It was built in 1970, making it 55 years old in 2025.
What condition is US 59 over Lyon Creek 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 May 2024.
How much traffic does US 59 over Lyon Creek carry?
About 3,240 vehicles per day (2023 count), of which roughly 20% are trucks.
How long is US 59 over Lyon Creek?
The structure is 192 ft (58.5 m) long with a longest span of 69 ft (21 m) and a deck 47 ft wide.
Who owns US 59 over Lyon Creek?
It is owned by the State Highway Agency.