WB Ia 163 over Mud Creek
FairPolk County, Iowa · 2.3 Miles W of JCT Ia 316 · Structure no. 000000000040980
- Built
- 1963
- 62 years old, rebuilt 2008
- Condition
- Fair
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 153 ft
- 3 main spans
- Daily traffic
- 7,450
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
WB Ia 163 over Mud Creek is a steel continuous stringer/multi-beam or girder carrying WB Ia 163 over Mud Creek in Polk County, Iowa. It was built in 1963 and reconstructed in 2008, so it is 62 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 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 7,450 vehicles a day, roughly 16% of them trucks, projected to reach 7,450 by 2044. The structure is 153 ft (46.6 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was WB Ia 163 over Mud Creek built?
It was built in 1963, making it 62 years old in 2025. It was reconstructed in 2008.
What condition is WB Ia 163 over Mud 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 June 2024.
How much traffic does WB Ia 163 over Mud Creek carry?
About 7,450 vehicles per day (2022 count), of which roughly 16% are trucks.
How long is WB Ia 163 over Mud Creek?
The structure is 153 ft (46.6 m) long with a longest span of 59 ft (18 m) and a deck 43 ft wide.
Who owns WB Ia 163 over Mud Creek?
It is owned by the State Highway Agency.