Mn 23 over Knowlton Creek
GoodSt. Louis County, Minnesota · 1.9 MI S of JCT TH 35 NB · Structure no. 69091
- Built
- 2016
- 9 years old
- Condition
- Good
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 106 ft
- 1 main span
- Daily traffic
- 10,280
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Mn 23 over Knowlton Creek is a prestressed concrete stringer/multi-beam or girder carrying Mn 23 over Knowlton Creek in St. Louis County, Minnesota. It was built in 2016, so it is 9 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 10,280 vehicles a day, roughly 5% of them trucks, projected to reach 10,100 by 2042. The structure is 106 ft (32.3 m) long and 74 ft wide. If it were closed, the detour would be 5 mi (8 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mn 23 over Knowlton Creek built?
It was built in 2016, making it 9 years old in 2025.
What condition is Mn 23 over Knowlton Creek 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 October 2024.
How much traffic does Mn 23 over Knowlton Creek carry?
About 10,280 vehicles per day (2022 count), of which roughly 5% are trucks.
How long is Mn 23 over Knowlton Creek?
The structure is 106 ft (32.3 m) long with a longest span of 103 ft (31.5 m) and a deck 74 ft wide.
Who owns Mn 23 over Knowlton Creek?
It is owned by the State Highway Agency.