US Bridges

I-74 (wb) over US 150 & NS Rr(aband)

Fair

De Witt County, Illinois · NW Farmer City · Structure no. 020002700000000

Built
1970
55 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
367 ft
4 main spans
Daily traffic
10,600
2023 count
Owner
State
State Highway Agency

About this bridge

I-74 (wb) over US 150 & NS Rr(aband) is a steel continuous stringer/multi-beam or girder carrying I-74 (wb) over US 150 & NS Rr(aband) in De Witt County, Illinois. It was built in 1970, so it is 55 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 10,600 vehicles a day, roughly 34% of them trucks, projected to reach 11,565 by 2046. The structure is 367 ft (111.8 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-74 (wb)
CrossesUS 150 & NS Rr(aband)
LocationNW Farmer City
RouteInterstate 74
CountyDe Witt County
StateIllinois
Coordinates40.26274, -88.65676
Functional classRural Principal Arterial - Interstate

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.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.5 US tons
Inventory rating40.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length367 ft (111.8 m)
Longest span122 ft (37.2 m)
Deck width43 ft (13 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,600 (2023)
Projected traffic11,565 by 2046
Trucks34%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I-74 (wb) over US 150 & NS Rr(aband) built?

It was built in 1970, making it 55 years old in 2025.

What condition is I-74 (wb) over US 150 & NS Rr(aband) 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 October 2023.

How much traffic does I-74 (wb) over US 150 & NS Rr(aband) carry?

About 10,600 vehicles per day (2023 count), of which roughly 34% are trucks.

How long is I-74 (wb) over US 150 & NS Rr(aband)?

The structure is 367 ft (111.8 m) long with a longest span of 122 ft (37.2 m) and a deck 43 ft wide.

Who owns I-74 (wb) over US 150 & NS Rr(aband)?

It is owned by the State Highway Agency.