Pratt Road/ Ms 089 over Somonauk Creek
PoorDeKalb County, Illinois · 245N 1565E · Structure no. 019580000000000
- Built
- 1967
- 58 years old
- Condition
- Poor
- inspected January 2024
- Type
- Channel Beam
- Concrete
- Length
- 84 ft
- 3 main spans
- Daily traffic
- 600
- 2021 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Pratt Road/ Ms 089 over Somonauk Creek is a concrete channel beam carrying Pratt Road/ Ms 089 over Somonauk Creek in DeKalb County, Illinois. It was built in 1967, so it is 58 years old, older than the Illinois average of 45.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 600 vehicles a day, roughly 55% of them trucks, projected to reach 672 by 2046. The structure is 84 ft (25.6 m) long and 30 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 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Pratt Road/ Ms 089 over Somonauk Creek built?
It was built in 1967, making it 58 years old in 2025.
What condition is Pratt Road/ Ms 089 over Somonauk Creek in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in January 2024.
How much traffic does Pratt Road/ Ms 089 over Somonauk Creek carry?
About 600 vehicles per day (2021 count), of which roughly 55% are trucks.
How long is Pratt Road/ Ms 089 over Somonauk Creek?
The structure is 84 ft (25.6 m) long with a longest span of 28 ft (8.5 m) and a deck 30 ft wide.
Who owns Pratt Road/ Ms 089 over Somonauk Creek?
It is owned by the City or Municipal Highway Agency.