Mn 51 over Pierce Butler Route
FairRamsey County, Minnesota · 0.9 MI N of JCT TH 12 · Structure no. 62011
- Built
- 1965
- 60 years old
- Condition
- Fair
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 122 ft
- 3 main spans
- Daily traffic
- 32,500
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
Mn 51 over Pierce Butler Route is a prestressed concrete stringer/multi-beam or girder carrying Mn 51 over Pierce Butler Route in Ramsey County, Minnesota. It was built in 1965, so it is 60 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 32,500 vehicles a day, roughly 3% of them trucks, projected to reach 41,000 by 2041. The structure is 122 ft (37.1 m) long and 93 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 51 over Pierce Butler Route built?
It was built in 1965, making it 60 years old in 2025.
What condition is Mn 51 over Pierce Butler Route 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 2024.
How much traffic does Mn 51 over Pierce Butler Route carry?
About 32,500 vehicles per day (2021 count), of which roughly 3% are trucks.
How long is Mn 51 over Pierce Butler Route?
The structure is 122 ft (37.1 m) long with a longest span of 61 ft (18.5 m) and a deck 93 ft wide.
Who owns Mn 51 over Pierce Butler Route?
It is owned by the State Highway Agency.