Territorial Road over Portage River Drain
GoodJackson County, Michigan · 1 MI N 1 MI W of Munith · Structure no. 000000000004510
- Built
- 2002
- 23 years old
- Condition
- Good
- inspected October 2024
- Type
- Culvert
- Concrete
- Length
- 22 ft
- 1 main span
- Daily traffic
- 1,470
- 2003 count
- Owner
- County
- County Highway Agency
About this bridge
Territorial Road over Portage River Drain is a concrete culvert carrying Territorial Road over Portage River Drain in Jackson County, Michigan. It was built in 2002, so it is 23 years old, younger 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 1,470 vehicles a day, roughly 4% of them trucks, projected to reach 1,780 by 2021. The structure is 22 ft (6.7 m) long. 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 |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Territorial Road over Portage River Drain built?
It was built in 2002, making it 23 years old in 2025.
What condition is Territorial Road over Portage River Drain 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 Territorial Road over Portage River Drain carry?
About 1,470 vehicles per day (2003 count), of which roughly 4% are trucks.
How long is Territorial Road over Portage River Drain?
The structure is 22 ft (6.7 m) long with a longest span of 22 ft (6.7 m).
Who owns Territorial Road over Portage River Drain?
It is owned by the County Highway Agency.