Ia 100 over Cedar River & Ianr RR
GoodLinn County, Iowa · 1.7 Mi. NE of E36 · Structure no. 000000000700375
- Built
- 2016
- 9 years old
- Condition
- Good
- inspected November 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 1,885 ft
- 9 main spans
- Daily traffic
- 11,500
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Ia 100 over Cedar River & Ianr RR is a steel continuous stringer/multi-beam or girder carrying Ia 100 over Cedar River & Ianr RR in Linn County, Iowa. It was built in 2016, so it is 9 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 11,500 vehicles a day, roughly 3% of them trucks, projected to reach 11,500 by 2044. The structure is 1,885 ft (574.6 m) long and 86 ft wide. If it were closed, the detour would be 5 mi (8 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ia 100 over Cedar River & Ianr RR built?
It was built in 2016, making it 9 years old in 2025.
What condition is Ia 100 over Cedar River & Ianr RR 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 November 2024.
How much traffic does Ia 100 over Cedar River & Ianr RR carry?
About 11,500 vehicles per day (2022 count), of which roughly 3% are trucks.
How long is Ia 100 over Cedar River & Ianr RR?
The structure is 1,885 ft (574.6 m) long with a longest span of 252 ft (76.7 m) and a deck 86 ft wide.
Who owns Ia 100 over Cedar River & Ianr RR?
It is owned by the State Highway Agency.