US-23 NB over Huron River
GoodLivingston County, Michigan · 2.2 MI N of M-36 · Structure no. 000000000005730
- Built
- 1960
- 65 years old, rebuilt 2011
- Condition
- Good
- inspected July 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 91 ft
- 2 main spans
- Daily traffic
- 32,225
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
US-23 NB over Huron River is a steel stringer/multi-beam or girder carrying US-23 NB over Huron River in Livingston County, Michigan. It was built in 1960 and reconstructed in 2011, so it is 65 years old, older than the Michigan average of 48.3 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 32,225 vehicles a day, roughly 8% of them trucks, projected to reach 36,500 by 2040. The structure is 91 ft (27.7 m) long and 66 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 US-23 NB over Huron River built?
It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2011.
What condition is US-23 NB over Huron River 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 2023.
How much traffic does US-23 NB over Huron River carry?
About 32,225 vehicles per day (2020 count), of which roughly 8% are trucks.
How long is US-23 NB over Huron River?
The structure is 91 ft (27.7 m) long with a longest span of 43 ft (13.1 m) and a deck 66 ft wide.
Who owns US-23 NB over Huron River?
It is owned by the State Highway Agency.