TR 108 over Langan Creek
PoorIroquois County, Illinois · 1.5N O.Sw of Clifton · Structure no. 038364500000000
- Built
- 1983
- 42 years old
- Condition
- Poor
- inspected September 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 135 ft
- 3 main spans
- Daily traffic
- 50
- 2022 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
TR 108 over Langan Creek is a prestressed concrete box beam or girders - multiple carrying TR 108 over Langan Creek in Iroquois County, Illinois. It was built in 1983, so it is 42 years old, younger than the Illinois average of 45.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 2 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: open, would be posted or closed except for temporary shoring.
It carries about 50 vehicles a day, roughly 24% of them trucks, projected to reach 202 by 2046. The structure is 135 ft (41.1 m) long and 27 ft wide. If it were closed, the detour would be 3.7 mi (6 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 2 Critical | Advanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken. |
| Superstructure | 2 Critical | Advanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was TR 108 over Langan Creek built?
It was built in 1983, making it 42 years old in 2025.
What condition is TR 108 over Langan Creek in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2023.
How much traffic does TR 108 over Langan Creek carry?
About 50 vehicles per day (2022 count), of which roughly 24% are trucks.
How long is TR 108 over Langan Creek?
The structure is 135 ft (41.1 m) long with a longest span of 75 ft (22.9 m) and a deck 27 ft wide.
Who owns TR 108 over Langan Creek?
It is owned by the Town or Township Highway Agency.