TR 478 over Sangamon River
GoodSangamon County, Illinois · 1MI N Buckhart · Structure no. 084344800000000
- Built
- 1996
- 29 years old
- Condition
- Good
- inspected March 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 549 ft
- 3 main spans
- Daily traffic
- 200
- 2022 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
TR 478 over Sangamon River is a steel continuous stringer/multi-beam or girder carrying TR 478 over Sangamon River in Sangamon County, Illinois. It was built in 1996, so it is 29 years old, younger than the Illinois average of 45.3 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 200 vehicles a day, roughly 6% of them trucks, projected to reach 177 by 2046. The structure is 549 ft (167.4 m) long and 28 ft wide. If it were closed, the detour would be 9.9 mi (16 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 | 8 Very Good | No problems noted. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was TR 478 over Sangamon River built?
It was built in 1996, making it 29 years old in 2025.
What condition is TR 478 over Sangamon 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 March 2023.
How much traffic does TR 478 over Sangamon River carry?
About 200 vehicles per day (2022 count), of which roughly 6% are trucks.
How long is TR 478 over Sangamon River?
The structure is 549 ft (167.4 m) long with a longest span of 120 ft (36.6 m) and a deck 28 ft wide.
Who owns TR 478 over Sangamon River?
It is owned by the Town or Township Highway Agency.