Ill 104 WB over Mill Creek
FairAdams County, Illinois · 2.2MI E I-172/IL 104 · Structure no. 001002400000000
- Built
- 1928
- 97 years old, rebuilt 1975
- Condition
- Fair
- inspected December 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 168 ft
- 1 main span
- Daily traffic
- 6,150
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Ill 104 WB over Mill Creek is a steel stringer/multi-beam or girder carrying Ill 104 WB over Mill Creek in Adams County, Illinois. It was built in 1928 and reconstructed in 1975, so it is 97 years old, older than the Illinois average of 45.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 6,150 vehicles a day, roughly 7% of them trucks, projected to reach 3,055 by 2046. The structure is 168 ft (51.2 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ill 104 WB over Mill Creek built?
It was built in 1928, making it 97 years old in 2025. It was reconstructed in 1975.
What condition is Ill 104 WB over Mill Creek in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in December 2024.
How much traffic does Ill 104 WB over Mill Creek carry?
About 6,150 vehicles per day (2023 count), of which roughly 7% are trucks.
How long is Ill 104 WB over Mill Creek?
The structure is 168 ft (51.2 m) long with a longest span of 101 ft (30.9 m) and a deck 41 ft wide.
Who owns Ill 104 WB over Mill Creek?
It is owned by the State Highway Agency.