I 90 over Twp 318
FairMartin County, Minnesota · 0.1 MI W of JCT TH 4 · Structure no. 46803
- Built
- 1972
- 53 years old
- Condition
- Fair
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 144 ft
- 3 main spans
- Daily traffic
- 4,300
- 2016 count
- Owner
- State
- State Highway Agency
About this bridge
I 90 over Twp 318 is a prestressed concrete stringer/multi-beam or girder carrying I 90 over Twp 318 in Martin County, Minnesota. It was built in 1972, so it is 53 years old, older than the Minnesota average of 38.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 4,300 vehicles a day, roughly 19% of them trucks, projected to reach 4,300 by 2036. The structure is 144 ft (43.8 m) long and 45 ft wide.
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I 90 over Twp 318 built?
It was built in 1972, making it 53 years old in 2025.
What condition is I 90 over Twp 318 in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2023.
How much traffic does I 90 over Twp 318 carry?
About 4,300 vehicles per day (2016 count), of which roughly 19% are trucks.
How long is I 90 over Twp 318?
The structure is 144 ft (43.8 m) long with a longest span of 48 ft (14.5 m) and a deck 45 ft wide.
Who owns I 90 over Twp 318?
It is owned by the State Highway Agency.