Mn 4 over CO Ditch # 1
GoodMartin County, Minnesota · 1.5 MI W of Sherburn · Structure no. 46003
- Built
- 1977
- 48 years old
- Condition
- Good
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 112 ft
- 2 main spans
- Daily traffic
- 1,716
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Mn 4 over CO Ditch # 1 is a prestressed concrete stringer/multi-beam or girder carrying Mn 4 over CO Ditch # 1 in Martin County, Minnesota. It was built in 1977, so it is 48 years old, older than the Minnesota average of 38.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 1,716 vehicles a day, roughly 17% of them trucks, projected to reach 2,000 by 2042. The structure is 112 ft (34 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mn 4 over CO Ditch # 1 built?
It was built in 1977, making it 48 years old in 2025.
What condition is Mn 4 over CO Ditch # 1 in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2024.
How much traffic does Mn 4 over CO Ditch # 1 carry?
About 1,716 vehicles per day (2022 count), of which roughly 17% are trucks.
How long is Mn 4 over CO Ditch # 1?
The structure is 112 ft (34 m) long with a longest span of 54 ft (16.5 m) and a deck 50 ft wide.
Who owns Mn 4 over CO Ditch # 1?
It is owned by the State Highway Agency.