US Bridges

US 150 over FAI 74

Fair

McLean County, Illinois · Over I-74 NW Normal · Structure no. 057007300000000

Built
1964
61 years old, rebuilt 1988
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
279 ft
4 main spans
Daily traffic
2,600
2023 count
Owner
State
State Highway Agency

About this bridge

US 150 over FAI 74 is a steel continuous stringer/multi-beam or girder carrying US 150 over FAI 74 in McLean County, Illinois. It was built in 1964 and reconstructed in 1988, so it is 61 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 5 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 2,600 vehicles a day, roughly 17% of them trucks, projected to reach 2,626 by 2046. The structure is 279 ft (84.9 m) long and 89 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesUS 150
CrossesFAI 74
LocationOver I-74 NW Normal
RouteU.S. Route 150
Coordinates40.54025, -89.06387
Functional classUrban Other Principal 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74.6 US tons
Inventory rating45 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length279 ft (84.9 m)
Longest span84 ft (25.6 m)
Deck width89 ft (27.2 m)
Roadway width86 ft (26.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,600 (2023)
Projected traffic2,626 by 2046
Trucks17%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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 150 over FAI 74 built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 1988.

What condition is US 150 over FAI 74 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 May 2023.

How much traffic does US 150 over FAI 74 carry?

About 2,600 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is US 150 over FAI 74?

The structure is 279 ft (84.9 m) long with a longest span of 84 ft (25.6 m) and a deck 89 ft wide.

Who owns US 150 over FAI 74?

It is owned by the State Highway Agency.