Waterman Road over Br of Somonauk Creek
PoorDeKalb County, Illinois · 1015N 900E · Structure no. 019304200000000
- Built
- 1985
- 40 years old
- Condition
- Poor
- inspected February 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 42 ft
- 1 main span
- Daily traffic
- 425
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
Waterman Road over Br of Somonauk Creek is a prestressed concrete box beam or girders - multiple carrying Waterman Road over Br of Somonauk Creek in DeKalb County, Illinois. It was built in 1985, so it is 40 years old, younger 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 4 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 425 vehicles a day, roughly 6% of them trucks, projected to reach 476 by 2046. The structure is 42 ft (12.8 m) long and 32 ft wide. If it were closed, the detour would be 6.8 mi (11 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Waterman Road over Br of Somonauk Creek built?
It was built in 1985, making it 40 years old in 2025.
What condition is Waterman Road over Br of 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 February 2023.
How much traffic does Waterman Road over Br of Somonauk Creek carry?
About 425 vehicles per day (2021 count), of which roughly 6% are trucks.
How long is Waterman Road over Br of Somonauk Creek?
The structure is 42 ft (12.8 m) long with a longest span of 39 ft (11.9 m) and a deck 32 ft wide.
Who owns Waterman Road over Br of Somonauk Creek?
It is owned by the County Highway Agency.