Mn 109 over I 90
PoorFreeborn County, Minnesota · 3.9 E of County Line · Structure no. 24810
- Built
- 1970
- 55 years old
- Condition
- Poor
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 295 ft
- 4 main spans
- Daily traffic
- 3,126
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Mn 109 over I 90 is a steel continuous stringer/multi-beam or girder carrying Mn 109 over I 90 in Freeborn County, Minnesota. It was built in 1970, so it is 55 years old, older than the Minnesota average of 38.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 3,126 vehicles a day, roughly 16% of them trucks, projected to reach 3,500 by 2042. The structure is 295 ft (89.9 m) long and 50 ft wide.
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mn 109 over I 90 built?
It was built in 1970, making it 55 years old in 2025.
What condition is Mn 109 over I 90 in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2024.
How much traffic does Mn 109 over I 90 carry?
About 3,126 vehicles per day (2022 count), of which roughly 16% are trucks.
How long is Mn 109 over I 90?
The structure is 295 ft (89.9 m) long with a longest span of 86 ft (26.2 m) and a deck 50 ft wide.
Who owns Mn 109 over I 90?
It is owned by the State Highway Agency.