TR-104 over Mill Creek
GoodRock Island County, Illinois · 2 MI SE Oak Grove · Structure no. 081307200000000
- Built
- 1971
- 54 years old
- Condition
- Good
- inspected November 2022
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 106 ft
- 3 main spans
- Daily traffic
- 250
- 2020 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
TR-104 over Mill Creek is a steel continuous stringer/multi-beam or girder carrying TR-104 over Mill Creek in Rock Island County, Illinois. It was built in 1971, so it is 54 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 250 vehicles a day, roughly 8% of them trucks, projected to reach 253 by 2046. The structure is 106 ft (32.3 m) long and 28 ft wide. If it were closed, the detour would be 6.2 mi (10 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was TR-104 over Mill Creek built?
It was built in 1971, making it 54 years old in 2025.
What condition is TR-104 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 November 2022.
How much traffic does TR-104 over Mill Creek carry?
About 250 vehicles per day (2020 count), of which roughly 8% are trucks.
How long is TR-104 over Mill Creek?
The structure is 106 ft (32.3 m) long with a longest span of 38 ft (11.5 m) and a deck 28 ft wide.
Who owns TR-104 over Mill Creek?
It is owned by the Town or Township Highway Agency.