Mallard Ave over US 18
GoodCerro Gordo County, Iowa · 4.4 Mi. E of Jct. I-35 · Structure no. 000000000606655
- Built
- 1998
- 27 years old
- Condition
- Good
- inspected August 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 225 ft
- 2 main spans
- Daily traffic
- 1,502
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Mallard Ave over US 18 is a prestressed concrete stringer/multi-beam or girder carrying Mallard Ave over US 18 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 1,502 vehicles a day, roughly 15% of them trucks, projected to reach 1,502 by 2043. The structure is 225 ft (68.6 m) long and 42 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mallard Ave over US 18 built?
It was built in 1998, making it 27 years old in 2025.
What condition is Mallard Ave over US 18 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 August 2023.
How much traffic does Mallard Ave over US 18 carry?
About 1,502 vehicles per day (2022 count), of which roughly 15% are trucks.
How long is Mallard Ave over US 18?
The structure is 225 ft (68.6 m) long with a longest span of 111 ft (33.8 m) and a deck 42 ft wide.
Who owns Mallard Ave over US 18?
It is owned by the State Highway Agency.