Porter RD over Five Mile Branch
GoodLee County, Illinois · 1 MI NW of Harmon · Structure no. 052430200000000
- Built
- 1999
- 26 years old
- Condition
- Good
- inspected February 2022
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 42 ft
- 1 main span
- Daily traffic
- 10
- 2017 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
Porter RD over Five Mile Branch is a prestressed concrete box beam or girders - multiple carrying Porter RD over Five Mile Branch in Lee County, Illinois. It was built in 1999, so it is 26 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 10 vehicles a day, projected to reach 10 by 2046. The structure is 42 ft (12.7 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Porter RD over Five Mile Branch built?
It was built in 1999, making it 26 years old in 2025.
What condition is Porter RD over Five Mile Branch 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 February 2022.
How much traffic does Porter RD over Five Mile Branch carry?
About 10 vehicles per day (2017 count).
How long is Porter RD over Five Mile Branch?
The structure is 42 ft (12.7 m) long with a longest span of 39 ft (11.9 m) and a deck 28 ft wide.
Who owns Porter RD over Five Mile Branch?
It is owned by the Town or Township Highway Agency.