US Bridges

FAU 6437 Ch 36 over I-74 near Downs

Poor

McLean County, Illinois · 6.91 MI E of US 51 · Structure no. 057012700000000

Built
1968
57 years old
Condition
Poor
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
231 ft
4 main spans
Daily traffic
2,450
2024 count
Owner
State
State Highway Agency

About this bridge

FAU 6437 Ch 36 over I-74 near Downs is a steel continuous stringer/multi-beam or girder carrying FAU 6437 Ch 36 over I-74 near Downs in McLean County, Illinois. It was built in 1968, so it is 57 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 2,450 vehicles a day, roughly 10% of them trucks, projected to reach 2,121 by 2046. The structure is 231 ft (70.4 m) long and 58 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesFAU 6437 Ch 36
CrossesI-74 near Downs
Location6.91 MI E of US 51
Coordinates40.3895, -88.87553
Functional classUrban Minor Arterial

Condition and inspection

Poor

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.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.5 US tons
Inventory rating44.3 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length231 ft (70.4 m)
Longest span71 ft (21.6 m)
Deck width58 ft (17.7 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,450 (2024)
Projected traffic2,121 by 2046
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was FAU 6437 Ch 36 over I-74 near Downs built?

It was built in 1968, making it 57 years old in 2025.

What condition is FAU 6437 Ch 36 over I-74 near Downs 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 April 2024.

How much traffic does FAU 6437 Ch 36 over I-74 near Downs carry?

About 2,450 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is FAU 6437 Ch 36 over I-74 near Downs?

The structure is 231 ft (70.4 m) long with a longest span of 71 ft (21.6 m) and a deck 58 ft wide.

Who owns FAU 6437 Ch 36 over I-74 near Downs?

It is owned by the State Highway Agency.