US Bridges

US 6 over FAI 180

Fair

Bureau County, Illinois · 3.58 Mi. E of Il 26 · Structure no. 006006900000000

Built
1968
57 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
287 ft
2 main spans
Daily traffic
3,150
2023 count
Owner
State
State Highway Agency

About this bridge

US 6 over FAI 180 is a steel continuous stringer/multi-beam or girder carrying US 6 over FAI 180 in Bureau 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 3,150 vehicles a day, roughly 5% of them trucks, projected to reach 3,182 by 2046. The structure is 287 ft (87.4 m) long and 58 ft wide.

CarriesUS 6
CrossesFAI 180
Location3.58 Mi. E of Il 26
RouteU.S. Route 6
Coordinates41.37117, -89.38314
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.8 US tons
Inventory rating37.1 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20 + Mod
Structure length287 ft (87.4 m)
Longest span100 ft (30.5 m)
Deck width58 ft (17.7 m)
Roadway width54 ft (16.5 m)
Vertical clearance over deck16 ft (4.9 m)

Traffic and service

Average daily traffic3,150 (2023)
Projected traffic3,182 by 2046
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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 US 6 over FAI 180 built?

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

What condition is US 6 over FAI 180 in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2024.

How much traffic does US 6 over FAI 180 carry?

About 3,150 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is US 6 over FAI 180?

The structure is 287 ft (87.4 m) long with a longest span of 100 ft (30.5 m) and a deck 58 ft wide.

Who owns US 6 over FAI 180?

It is owned by the State Highway Agency.