US Bridges

US 150 over I-74

Poor

Woodford County, Illinois · 2.95 MI W of Ill 117 · Structure no. 102000900000000

Built
1964
61 years old
Condition
Poor
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
221 ft
4 main spans
Daily traffic
1,800
2023 count
Owner
State
State Highway Agency

About this bridge

US 150 over I-74 is a steel continuous stringer/multi-beam or girder carrying US 150 over I-74 in Woodford County, Illinois. It was built in 1964, 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 poor condition with a lowest component rating of 3 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 1,800 vehicles a day, roughly 7% of them trucks, projected to reach 2,071 by 2046. The structure is 221 ft (67.4 m) long and 34 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesUS 150
CrossesI-74
Location2.95 MI W of Ill 117
RouteU.S. Route 150
CountyWoodford County
StateIllinois
Coordinates40.62234, -89.32757
Functional classRural Major Collector

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
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating74 US tons
Inventory rating44.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length221 ft (67.4 m)
Longest span67 ft (20.4 m)
Deck width34 ft (10.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,800 (2023)
Projected traffic2,071 by 2046
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed9.9 mi (16 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 US 150 over I-74 built?

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

What condition is US 150 over I-74 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 May 2024.

How much traffic does US 150 over I-74 carry?

About 1,800 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is US 150 over I-74?

The structure is 221 ft (67.4 m) long with a longest span of 67 ft (20.4 m) and a deck 34 ft wide.

Who owns US 150 over I-74?

It is owned by the State Highway Agency.