S Mill Grove Road over Yellow Creek
PoorPosted for loadStephenson County, Illinois · 3 MI SE Pearl City · Structure no. 089318700000000
- Built
- 1931
- 94 years old
- Condition
- Poor
- inspected December 2023
- Type
- Truss - Thru
- Steel
- Length
- 84 ft
- 1 main span
- Daily traffic
- 100
- 2024 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
S Mill Grove Road over Yellow Creek is a steel truss - thru carrying S Mill Grove Road over Yellow Creek in Stephenson County, Illinois. It was built in 1931, so it is 94 years old, older 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 4 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: posted for load restriction.
It carries about 100 vehicles a day, roughly 1% of them trucks, projected to reach 101 by 2046. The structure is 84 ft (25.6 m) long and 23 ft wide. If it were closed, the detour would be 5 mi (8 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S Mill Grove Road over Yellow Creek built?
It was built in 1931, making it 94 years old in 2025.
What condition is S Mill Grove Road over Yellow 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 December 2023.
How much traffic does S Mill Grove Road over Yellow Creek carry?
About 100 vehicles per day (2024 count), of which roughly 1% are trucks.
How long is S Mill Grove Road over Yellow Creek?
The structure is 84 ft (25.6 m) long with a longest span of 80 ft (24.4 m) and a deck 23 ft wide.
Who owns S Mill Grove Road over Yellow Creek?
It is owned by the Town or Township Highway Agency.