Ch 15 over E Fk Mazonriver
PoorGrundy County, Illinois · 0.05 MI W Ch 16 · Structure no. 032333500000000
- Built
- 1977
- 48 years old
- Condition
- Poor
- inspected October 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 197 ft
- 3 main spans
- Daily traffic
- 1,350
- 2024 count
- Owner
- County
- County Highway Agency
About this bridge
Ch 15 over E Fk Mazonriver is a prestressed concrete box beam or girders - multiple carrying Ch 15 over E Fk Mazonriver in Grundy County, Illinois. It was built in 1977, so it is 48 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 2 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. Its operating status is: open, would be posted or closed except for temporary shoring.
It carries about 1,350 vehicles a day, roughly 5% of them trucks, projected to reach 1,680 by 2046. The structure is 197 ft (60 m) long and 36 ft wide. If it were closed, the detour would be 8.7 mi (14 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 | 2 Critical | Advanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken. |
| Superstructure | 2 Critical | Advanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ch 15 over E Fk Mazonriver built?
It was built in 1977, making it 48 years old in 2025.
What condition is Ch 15 over E Fk Mazonriver 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 October 2024.
How much traffic does Ch 15 over E Fk Mazonriver carry?
About 1,350 vehicles per day (2024 count), of which roughly 5% are trucks.
How long is Ch 15 over E Fk Mazonriver?
The structure is 197 ft (60 m) long with a longest span of 66 ft (20.1 m) and a deck 36 ft wide.
Who owns Ch 15 over E Fk Mazonriver?
It is owned by the County Highway Agency.