Ill 104 EB over Mill Creek
GoodAdams County, Illinois · 2.2MI E I-172/IL 104 · Structure no. 001007000000000
- Built
- 1987
- 38 years old
- Condition
- Good
- inspected January 2025
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 175 ft
- 3 main spans
- Daily traffic
- 6,150
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Ill 104 EB over Mill Creek is a prestressed concrete stringer/multi-beam or girder carrying Ill 104 EB over Mill Creek in Adams County, Illinois. It was built in 1987, so it is 38 years old, younger 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 6,150 vehicles a day, roughly 7% of them trucks, projected to reach 3,055 by 2046. The structure is 175 ft (53.3 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| 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 104 EB over Mill Creek built?
It was built in 1987, making it 38 years old in 2025.
What condition is Ill 104 EB over Mill Creek 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 2025.
How much traffic does Ill 104 EB over Mill Creek carry?
About 6,150 vehicles per day (2023 count), of which roughly 7% are trucks.
How long is Ill 104 EB over Mill Creek?
The structure is 175 ft (53.3 m) long with a longest span of 70 ft (21.3 m) and a deck 43 ft wide.
Who owns Ill 104 EB over Mill Creek?
It is owned by the State Highway Agency.