TR 74 Farnham ST over US 34 Bypass
PoorKnox County, Illinois · W of I-74&34 Interch · Structure no. 048006500000000
- Built
- 1965
- 60 years old
- Condition
- Poor
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 184 ft
- 4 main spans
- Daily traffic
- 100
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
TR 74 Farnham ST over US 34 Bypass is a steel continuous stringer/multi-beam or girder carrying TR 74 Farnham ST over US 34 Bypass in Knox County, Illinois. It was built in 1965, so it is 60 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 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 100 vehicles a day, roughly 10% of them trucks, projected to reach 126 by 2046. The structure is 184 ft (56.1 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was TR 74 Farnham ST over US 34 Bypass built?
It was built in 1965, making it 60 years old in 2025.
What condition is TR 74 Farnham ST over US 34 Bypass 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 September 2024.
How much traffic does TR 74 Farnham ST over US 34 Bypass carry?
About 100 vehicles per day (2022 count), of which roughly 10% are trucks.
How long is TR 74 Farnham ST over US 34 Bypass?
The structure is 184 ft (56.1 m) long with a longest span of 53 ft (16.2 m) and a deck 30 ft wide.
Who owns TR 74 Farnham ST over US 34 Bypass?
It is owned by the State Highway Agency.