Mn 115 over Mississippi River
FairMorrison County, Minnesota · At Camp Ripley · Structure no. 4969
- Built
- 1930
- 95 years old
- Condition
- Fair
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 412 ft
- 5 main spans
- Daily traffic
- 3,104
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
Mn 115 over Mississippi River is a steel stringer/multi-beam or girder carrying Mn 115 over Mississippi River in Morrison County, Minnesota. It was built in 1930, so it is 95 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 5 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 3,104 vehicles a day, roughly 5% of them trucks, projected to reach 2,900 by 2041. The structure is 412 ft (125.6 m) long and 31 ft wide. If it were closed, the detour would be 16.8 mi (27 km).
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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mn 115 over Mississippi River built?
It was built in 1930, making it 95 years old in 2025.
What condition is Mn 115 over Mississippi River 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 August 2024.
How much traffic does Mn 115 over Mississippi River carry?
About 3,104 vehicles per day (2021 count), of which roughly 5% are trucks.
How long is Mn 115 over Mississippi River?
The structure is 412 ft (125.6 m) long with a longest span of 82 ft (25 m) and a deck 31 ft wide.
Who owns Mn 115 over Mississippi River?
It is owned by the State Highway Agency.