County Line Road over Green River
FairWhiteside County, Illinois · 2.5 MI E Deer Grove · Structure no. 098441000000000
- Built
- 1978
- 47 years old
- Condition
- Fair
- inspected April 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 141 ft
- 3 main spans
- Daily traffic
- 75
- 2017 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
County Line Road over Green River is a prestressed concrete box beam or girders - multiple carrying County Line Road over Green River in Whiteside County, Illinois. It was built in 1978, so it is 47 years old, older than the Illinois average of 45.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 75 vehicles a day, projected to reach 76 by 2046. The structure is 141 ft (43 m) long and 24 ft wide. If it were closed, the detour would be 8.1 mi (13 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was County Line Road over Green River built?
It was built in 1978, making it 47 years old in 2025.
What condition is County Line Road over Green River in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2023.
How much traffic does County Line Road over Green River carry?
About 75 vehicles per day (2017 count).
How long is County Line Road over Green River?
The structure is 141 ft (43 m) long with a longest span of 47 ft (14.4 m) and a deck 24 ft wide.
Who owns County Line Road over Green River?
It is owned by the Town or Township Highway Agency.