WB US 30 over Ames Creek
FairClinton County, Iowa · 3.5 MI E of E JCT US 61 · Structure no. 000000000602812
- Built
- 1974
- 51 years old
- Condition
- Fair
- inspected September 2022
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 160 ft
- 3 main spans
- Daily traffic
- 4,700
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
WB US 30 over Ames Creek is a prestressed concrete stringer/multi-beam or girder carrying WB US 30 over Ames Creek in Clinton County, Iowa. It was built in 1974, so it is 51 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 4,700 vehicles a day, roughly 15% of them trucks, projected to reach 4,700 by 2042. The structure is 160 ft (48.8 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 8 Very Good | No problems noted. |
| 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 US 30 over Ames Creek built?
It was built in 1974, making it 51 years old in 2025.
What condition is WB US 30 over Ames 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 September 2022.
How much traffic does WB US 30 over Ames Creek carry?
About 4,700 vehicles per day (2022 count), of which roughly 15% are trucks.
How long is WB US 30 over Ames Creek?
The structure is 160 ft (48.8 m) long with a longest span of 69 ft (21 m) and a deck 43 ft wide.
Who owns WB US 30 over Ames Creek?
It is owned by the State Highway Agency.