Mn 3 over TH 55
FairDakota County, Minnesota · At the JCT TH 55 · Structure no. 19045
- Built
- 1994
- 31 years old
- Condition
- Fair
- inspected April 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 274 ft
- 2 main spans
- Daily traffic
- 6,488
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
Mn 3 over TH 55 is a prestressed concrete stringer/multi-beam or girder carrying Mn 3 over TH 55 in Dakota County, Minnesota. It was built in 1994, so it is 31 years old, younger 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 6,488 vehicles a day, roughly 4% of them trucks, projected to reach 10,200 by 2041. The structure is 274 ft (83.5 m) long and 74 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 7 Good | Some minor problems. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mn 3 over TH 55 built?
It was built in 1994, making it 31 years old in 2025.
What condition is Mn 3 over TH 55 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 April 2023.
How much traffic does Mn 3 over TH 55 carry?
About 6,488 vehicles per day (2021 count), of which roughly 4% are trucks.
How long is Mn 3 over TH 55?
The structure is 274 ft (83.5 m) long with a longest span of 138 ft (42.2 m) and a deck 74 ft wide.
Who owns Mn 3 over TH 55?
It is owned by the State Highway Agency.