Ill 3 over Marys River
GoodRandolph County, Illinois · 1.3 MI S Chester · Structure no. 079001100000000
- Built
- 1933
- 92 years old, rebuilt 1980
- Condition
- Good
- inspected January 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 363 ft
- 4 main spans
- Daily traffic
- 3,450
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Ill 3 over Marys River is a steel continuous stringer/multi-beam or girder carrying Ill 3 over Marys River in Randolph County, Illinois. It was built in 1933 and reconstructed in 1980, so it is 92 years old, older 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 3,450 vehicles a day, roughly 40% of them trucks, projected to reach 3,283 by 2046. The structure is 363 ft (110.7 m) long and 42 ft wide. If it were closed, the detour would be 36 mi (58 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 | 7 Good | Some minor problems. |
| 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 Ill 3 over Marys River built?
It was built in 1933, making it 92 years old in 2025. It was reconstructed in 1980.
What condition is Ill 3 over Marys 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 2024.
How much traffic does Ill 3 over Marys River carry?
About 3,450 vehicles per day (2023 count), of which roughly 40% are trucks.
How long is Ill 3 over Marys River?
The structure is 363 ft (110.7 m) long with a longest span of 101 ft (30.7 m) and a deck 42 ft wide.
Who owns Ill 3 over Marys River?
It is owned by the State Highway Agency.