US 18 WB over I-35
GoodCerro Gordo County, Iowa · At the Jct. of I-35 · Structure no. 000000000601975
- Built
- 1998
- 27 years old
- Condition
- Good
- inspected January 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 401 ft
- 4 main spans
- Daily traffic
- 610
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
US 18 WB over I-35 is a prestressed concrete stringer/multi-beam or girder carrying US 18 WB over I-35 in Cerro Gordo County, Iowa. It was built in 1998, so it is 27 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 610 vehicles a day, roughly 20% of them trucks, projected to reach 610 by 2043. The structure is 401 ft (122.2 m) long and 40 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 18 WB over I-35 built?
It was built in 1998, making it 27 years old in 2025.
What condition is US 18 WB over I-35 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 January 2023.
How much traffic does US 18 WB over I-35 carry?
About 610 vehicles per day (2022 count), of which roughly 20% are trucks.
How long is US 18 WB over I-35?
The structure is 401 ft (122.2 m) long with a longest span of 106 ft (32.3 m) and a deck 40 ft wide.
Who owns US 18 WB over I-35?
It is owned by the State Highway Agency.