Mn 51 over CO RD B2 (csah 78)
FairRamsey County, Minnesota · 0.2 MI N of JCT TH 36 · Structure no. 62040
- Built
- 1969
- 56 years old
- Condition
- Fair
- inspected May 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 209 ft
- 3 main spans
- Daily traffic
- 46,000
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
Mn 51 over CO RD B2 (csah 78) is a prestressed concrete stringer/multi-beam or girder carrying Mn 51 over CO RD B2 (csah 78) in Ramsey County, Minnesota. It was built in 1969, so it is 56 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 46,000 vehicles a day, roughly 2% of them trucks, projected to reach 38,000 by 2039. The structure is 209 ft (63.7 m) long and 90 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, 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 51 over CO RD B2 (csah 78) built?
It was built in 1969, making it 56 years old in 2025.
What condition is Mn 51 over CO RD B2 (csah 78) 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 May 2024.
How much traffic does Mn 51 over CO RD B2 (csah 78) carry?
About 46,000 vehicles per day (2019 count), of which roughly 2% are trucks.
How long is Mn 51 over CO RD B2 (csah 78)?
The structure is 209 ft (63.7 m) long with a longest span of 105 ft (31.9 m) and a deck 90 ft wide.
Who owns Mn 51 over CO RD B2 (csah 78)?
It is owned by the State Highway Agency.