SR 18 WB over Mississinewa River
GoodGrant County, Indiana · 01.53 E SR 9 · Structure no. 004850
- Built
- 1961
- 64 years old, rebuilt 2003
- Condition
- Good
- inspected July 2023
- Type
- Tee Beam
- Prestressed Concrete Continuous
- Length
- 369 ft
- 5 main spans
- Daily traffic
- 5,840
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
SR 18 WB over Mississinewa River is a prestressed concrete continuous tee beam carrying SR 18 WB over Mississinewa River in Grant County, Indiana. It was built in 1961 and reconstructed in 2003, 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 5,840 vehicles a day, roughly 9% of them trucks, projected to reach 6,153 by 2043. The structure is 369 ft (112.4 m) long and 48 ft wide. If it were closed, the detour would be 0.6 mi (1 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 | 7 Good | Some minor problems. |
| 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 18 WB over Mississinewa River built?
It was built in 1961, making it 64 years old in 2025. It was reconstructed in 2003.
What condition is SR 18 WB over Mississinewa 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 July 2023.
How much traffic does SR 18 WB over Mississinewa River carry?
About 5,840 vehicles per day (2024 count), of which roughly 9% are trucks.
How long is SR 18 WB over Mississinewa River?
The structure is 369 ft (112.4 m) long with a longest span of 81 ft (24.6 m) and a deck 48 ft wide.
Who owns SR 18 WB over Mississinewa River?
It is owned by the State Highway Agency.