IL-16 & 100 over Illinois River & TR-423
PoorPosted for loadGreene County, Illinois · At Hardin Illinois · Structure no. 031000100000000
- Built
- 1930
- 95 years old, rebuilt 2004
- Condition
- Poor
- inspected October 2024
- Type
- Movable - Lift
- Steel
- Length
- 2,150 ft
- 1 main span
- Daily traffic
- 2,250
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
IL-16 & 100 over Illinois River & TR-423 is a steel movable - lift carrying IL-16 & 100 over Illinois River & TR-423 in Greene County, Illinois. It was built in 1930 and reconstructed in 2004, so it is 95 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. Its operating status is: posted for load restriction.
It carries about 2,250 vehicles a day, roughly 12% of them trucks, projected to reach 2,525 by 2046. The structure is 2,150 ft (655.4 m) long and 23 ft wide. If it were closed, the detour would be 47.8 mi (77 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 | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was IL-16 & 100 over Illinois River & TR-423 built?
It was built in 1930, making it 95 years old in 2025. It was reconstructed in 2004.
What condition is IL-16 & 100 over Illinois River & TR-423 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 October 2024.
How much traffic does IL-16 & 100 over Illinois River & TR-423 carry?
About 2,250 vehicles per day (2023 count), of which roughly 12% are trucks.
How long is IL-16 & 100 over Illinois River & TR-423?
The structure is 2,150 ft (655.4 m) long with a longest span of 311 ft (94.8 m) and a deck 23 ft wide.
Who owns IL-16 & 100 over Illinois River & TR-423?
It is owned by the State Highway Agency.