TR-120 over Mash Creek
GoodRichland County, Illinois · 1 MI NW Olney · Structure no. 080315100000000
- Built
- 1984
- 41 years old
- Condition
- Good
- inspected January 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 52 ft
- 1 main span
- Daily traffic
- 100
- 2022 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
TR-120 over Mash Creek is a prestressed concrete box beam or girders - multiple carrying TR-120 over Mash Creek in Richland County, Illinois. It was built in 1984, so it is 41 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 100 vehicles a day, roughly 5% of them trucks, projected to reach 101 by 2046. The structure is 52 ft (15.8 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was TR-120 over Mash Creek built?
It was built in 1984, making it 41 years old in 2025.
What condition is TR-120 over Mash 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 January 2023.
How much traffic does TR-120 over Mash Creek carry?
About 100 vehicles per day (2022 count), of which roughly 5% are trucks.
How long is TR-120 over Mash Creek?
The structure is 52 ft (15.8 m) long with a longest span of 48 ft (14.6 m) and a deck 24 ft wide.
Who owns TR-120 over Mash Creek?
It is owned by the Town or Township Highway Agency.