Rock Road over Mud Creek
FairOgle County, Illinois · 2.5 M E Mt Morris · Structure no. 071327500000000
- Built
- 1983
- 42 years old
- Condition
- Fair
- inspected August 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 56 ft
- 1 main span
- Daily traffic
- 175
- 2022 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
Rock Road over Mud Creek is a prestressed concrete box beam or girders - multiple carrying Rock Road over Mud Creek in Ogle County, Illinois. It was built in 1983, so it is 42 years old, younger 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 5 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 175 vehicles a day, roughly 30% of them trucks, projected to reach 364 by 2046. The structure is 56 ft (17.1 m) long and 24 ft wide. If it were closed, the detour would be 5 mi (8 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 Rock Road over Mud Creek built?
It was built in 1983, making it 42 years old in 2025.
What condition is Rock Road over Mud 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 August 2023.
How much traffic does Rock Road over Mud Creek carry?
About 175 vehicles per day (2022 count), of which roughly 30% are trucks.
How long is Rock Road over Mud Creek?
The structure is 56 ft (17.1 m) long with a longest span of 54 ft (16.5 m) and a deck 24 ft wide.
Who owns Rock Road over Mud Creek?
It is owned by the Town or Township Highway Agency.