Old Ia 105 over Cedar River
GoodMitchell County, Iowa · 099181412 · Structure no. 000000000036581
- Built
- 1989
- 36 years old
- Condition
- Good
- inspected December 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 304 ft
- 4 main spans
- Daily traffic
- 746
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
Old Ia 105 over Cedar River is a prestressed concrete stringer/multi-beam or girder carrying Old Ia 105 over Cedar River in Mitchell County, Iowa. It was built in 1989, so it is 36 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 746 vehicles a day, roughly 13% of them trucks, projected to reach 746 by 2043. The structure is 304 ft (92.7 m) long and 37 ft wide. If it were closed, the detour would be 13 mi (21 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. |
| Channel and channel protection | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Old Ia 105 over Cedar River built?
It was built in 1989, making it 36 years old in 2025.
What condition is Old Ia 105 over Cedar River 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 Old Ia 105 over Cedar River carry?
About 746 vehicles per day (2022 count), of which roughly 13% are trucks.
How long is Old Ia 105 over Cedar River?
The structure is 304 ft (92.7 m) long with a longest span of 97 ft (29.6 m) and a deck 37 ft wide.
Who owns Old Ia 105 over Cedar River?
It is owned by the County Highway Agency.