Isenberg Rd.-Tr 18 over Trib. of Green River
GoodLee County, Illinois · .1 MI S Montavon RD · Structure no. 052432700000000
- Built
- 1990
- 35 years old
- Condition
- Good
- inspected January 2025
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 52 ft
- 1 main span
- Daily traffic
- 25
- 2017 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
Isenberg Rd.-Tr 18 over Trib. of Green River is a prestressed concrete box beam or girders - multiple carrying Isenberg Rd.-Tr 18 over Trib. of Green River in Lee County, Illinois. It was built in 1990, so it is 35 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 25 vehicles a day, projected to reach 25 by 2046. The structure is 52 ft (15.8 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Isenberg Rd.-Tr 18 over Trib. of Green River built?
It was built in 1990, making it 35 years old in 2025.
What condition is Isenberg Rd.-Tr 18 over Trib. of Green 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 January 2025.
How much traffic does Isenberg Rd.-Tr 18 over Trib. of Green River carry?
About 25 vehicles per day (2017 count).
How long is Isenberg Rd.-Tr 18 over Trib. of Green River?
The structure is 52 ft (15.8 m) long with a longest span of 49 ft (14.9 m) and a deck 24 ft wide.
Who owns Isenberg Rd.-Tr 18 over Trib. of Green River?
It is owned by the Town or Township Highway Agency.