State Street over Kishwaukee River
GoodBoone County, Illinois · Downtown Belvidere · Structure no. 004001900000000
- Built
- 2001
- 24 years old
- Condition
- Good
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 221 ft
- 2 main spans
- Daily traffic
- 8,800
- 2018 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
State Street over Kishwaukee River is a steel continuous stringer/multi-beam or girder carrying State Street over Kishwaukee River in Boone County, Illinois. It was built in 2001, so it is 24 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 8,800 vehicles a day, roughly 3% of them trucks, projected to reach 9,152 by 2046. The structure is 221 ft (67.4 m) long and 71 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 | 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 State Street over Kishwaukee River built?
It was built in 2001, making it 24 years old in 2025.
What condition is State Street over Kishwaukee 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 September 2023.
How much traffic does State Street over Kishwaukee River carry?
About 8,800 vehicles per day (2018 count), of which roughly 3% are trucks.
How long is State Street over Kishwaukee River?
The structure is 221 ft (67.4 m) long with a longest span of 109 ft (33.2 m) and a deck 71 ft wide.
Who owns State Street over Kishwaukee River?
It is owned by the City or Municipal Highway Agency.