Harper RD over Branch Leaf River
GoodOgle County, Illinois · 4.5 MI NW Forreston · Structure no. 071506300000000
- Built
- 1974
- 51 years old
- Condition
- Good
- inspected August 2023
- Type
- Culvert
- Concrete
- Length
- 26 ft
- 2 main spans
- Daily traffic
- 10
- 2017 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
Harper RD over Branch Leaf River is a concrete culvert carrying Harper RD over Branch Leaf River in Ogle County, Illinois. It was built in 1974, so it is 51 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 10 vehicles a day, projected to reach 10 by 2046. The structure is 26 ft (7.9 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 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 |
|---|---|---|
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Harper RD over Branch Leaf River built?
It was built in 1974, making it 51 years old in 2025.
What condition is Harper RD over Branch Leaf River 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 August 2023.
How much traffic does Harper RD over Branch Leaf River carry?
About 10 vehicles per day (2017 count).
How long is Harper RD over Branch Leaf River?
The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m) and a deck 30 ft wide.
Who owns Harper RD over Branch Leaf River?
It is owned by the Town or Township Highway Agency.