TR 120 Mulligan LN over Br of Richland CR
GoodSt. Clair County, Illinois · 1.14 MI W of Il 159 · Structure no. 082416300000000
- Built
- 2020
- 5 years old
- Condition
- Good
- inspected February 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 61 ft
- 1 main span
- Daily traffic
- 125
- 2023 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
TR 120 Mulligan LN over Br of Richland CR is a prestressed concrete box beam or girders - multiple carrying TR 120 Mulligan LN over Br of Richland CR in St. Clair County, Illinois. It was built in 2020, so it is 5 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 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 125 vehicles a day, roughly 19% of them trucks, projected to reach 202 by 2046. The structure is 61 ft (18.7 m) long and 24 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 TR 120 Mulligan LN over Br of Richland CR built?
It was built in 2020, making it 5 years old in 2025.
What condition is TR 120 Mulligan LN over Br of Richland CR 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 February 2023.
How much traffic does TR 120 Mulligan LN over Br of Richland CR carry?
About 125 vehicles per day (2023 count), of which roughly 19% are trucks.
How long is TR 120 Mulligan LN over Br of Richland CR?
The structure is 61 ft (18.7 m) long with a longest span of 59 ft (17.9 m) and a deck 24 ft wide.
Who owns TR 120 Mulligan LN over Br of Richland CR?
It is owned by the Town or Township Highway Agency.