Ia 100 WB over US 30
GoodLinn County, Iowa · US 30 Ramp H · Structure no. 000000000700590
- Built
- 2018
- 7 years old
- Condition
- Good
- inspected December 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 687 ft
- 4 main spans
- Daily traffic
- 740
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Ia 100 WB over US 30 is a steel continuous stringer/multi-beam or girder carrying Ia 100 WB over US 30 in Linn County, Iowa. It was built in 2018, so it is 7 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 740 vehicles a day, roughly 5% of them trucks, projected to reach 740 by 2043. The structure is 687 ft (209.4 m) long and 45 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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ia 100 WB over US 30 built?
It was built in 2018, making it 7 years old in 2025.
What condition is Ia 100 WB over US 30 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 December 2023.
How much traffic does Ia 100 WB over US 30 carry?
About 740 vehicles per day (2022 count), of which roughly 5% are trucks.
How long is Ia 100 WB over US 30?
The structure is 687 ft (209.4 m) long with a longest span of 223 ft (68 m) and a deck 45 ft wide.
Who owns Ia 100 WB over US 30?
It is owned by the State Highway Agency.