Ill 78 over Spoon River
PoorPeoria County, Illinois · 3 MI N of Laura · Structure no. 072003100000000
- Built
- 1927
- 98 years old, rebuilt 1981
- Condition
- Poor
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 369 ft
- 5 main spans
- Daily traffic
- 2,450
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Ill 78 over Spoon River is a steel continuous stringer/multi-beam or girder carrying Ill 78 over Spoon River in Peoria County, Illinois. It was built in 1927 and reconstructed in 1981, so it is 98 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 3 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 2,450 vehicles a day, roughly 11% of them trucks, projected to reach 2,626 by 2046. The structure is 369 ft (112.5 m) long and 43 ft wide. If it were closed, the detour would be 16.2 mi (26 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 | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| 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 | 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 Ill 78 over Spoon River built?
It was built in 1927, making it 98 years old in 2025. It was reconstructed in 1981.
What condition is Ill 78 over Spoon River 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 July 2024.
How much traffic does Ill 78 over Spoon River carry?
About 2,450 vehicles per day (2023 count), of which roughly 11% are trucks.
How long is Ill 78 over Spoon River?
The structure is 369 ft (112.5 m) long with a longest span of 101 ft (30.8 m) and a deck 43 ft wide.
Who owns Ill 78 over Spoon River?
It is owned by the State Highway Agency.