Science Ridge Road over Spring Creek
PoorWhiteside County, Illinois · 3 MI NW Sterling · Structure no. 098451300000000
- Built
- 1983
- 42 years old
- Condition
- Poor
- inspected December 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 75 ft
- 1 main span
- Daily traffic
- 500
- 2021 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
Science Ridge Road over Spring Creek is a prestressed concrete box beam or girders - multiple carrying Science Ridge Road over Spring Creek in Whiteside 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 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.
It carries about 500 vehicles a day, roughly 4% of them trucks, projected to reach 455 by 2046. The structure is 75 ft (22.9 m) long and 30 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Science Ridge Road over Spring Creek built?
It was built in 1983, making it 42 years old in 2025.
What condition is Science Ridge Road over Spring 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 2024.
How much traffic does Science Ridge Road over Spring Creek carry?
About 500 vehicles per day (2021 count), of which roughly 4% are trucks.
How long is Science Ridge Road over Spring Creek?
The structure is 75 ft (22.9 m) long with a longest span of 72 ft (21.9 m) and a deck 30 ft wide.
Who owns Science Ridge Road over Spring Creek?
It is owned by the Town or Township Highway Agency.