SR 55 over Iroquois River
GoodNewton County, Indiana · 00.29 N SR 16 · Structure no. 019790
- Built
- 1961
- 64 years old, rebuilt 2015
- Condition
- Good
- inspected August 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 175 ft
- 3 main spans
- Daily traffic
- 490
- 2011 count
- Owner
- State
- State Highway Agency
About this bridge
SR 55 over Iroquois River is a steel continuous stringer/multi-beam or girder carrying SR 55 over Iroquois River in Newton County, Indiana. It was built in 1961 and reconstructed in 2015, so it is 64 years old, older than the Indiana average of 46.6 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 490 vehicles a day, roughly 13% of them trucks, projected to reach 530 by 2035. The structure is 175 ft (53.4 m) long and 34 ft wide. If it were closed, the detour would be 5.6 mi (9 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR 55 over Iroquois River built?
It was built in 1961, making it 64 years old in 2025. It was reconstructed in 2015.
What condition is SR 55 over Iroquois 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 August 2023.
How much traffic does SR 55 over Iroquois River carry?
About 490 vehicles per day (2011 count), of which roughly 13% are trucks.
How long is SR 55 over Iroquois River?
The structure is 175 ft (53.4 m) long with a longest span of 65 ft (19.8 m) and a deck 34 ft wide.
Who owns SR 55 over Iroquois River?
It is owned by the State Highway Agency.