EB US 30 over Timber Creek
GoodMarshall County, Iowa · 3.0 Miles E of JCT Ia 14 · Structure no. 000000000035321
- Built
- 1996
- 29 years old
- Condition
- Good
- inspected October 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 192 ft
- 3 main spans
- Daily traffic
- 7,300
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
EB US 30 over Timber Creek is a prestressed concrete stringer/multi-beam or girder carrying EB US 30 over Timber Creek in Marshall County, Iowa. It was built in 1996, so it is 29 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 7,300 vehicles a day, roughly 13% of them trucks, projected to reach 7,300 by 2043. The structure is 192 ft (58.5 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
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 | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was EB US 30 over Timber Creek built?
It was built in 1996, making it 29 years old in 2025.
What condition is EB US 30 over Timber Creek 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 October 2023.
How much traffic does EB US 30 over Timber Creek carry?
About 7,300 vehicles per day (2022 count), of which roughly 13% are trucks.
How long is EB US 30 over Timber Creek?
The structure is 192 ft (58.5 m) long with a longest span of 77 ft (23.5 m) and a deck 43 ft wide.
Who owns EB US 30 over Timber Creek?
It is owned by the State Highway Agency.