US Bridges

US 150 WB over Il 29

Poor

Peoria County, Illinois · Il 29 NE Adams ST · Structure no. 072016800000000

Built
1995
30 years old
Condition
Poor
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
200 ft
4 main spans
Daily traffic
30,000
2021 count
Owner
State
State Highway Agency

About this bridge

US 150 WB over Il 29 is a steel continuous stringer/multi-beam or girder carrying US 150 WB over Il 29 in Peoria County, Illinois. It was built in 1995, so it is 30 years old, younger 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 30,000 vehicles a day, roughly 3% of them trucks, projected to reach 15,150 by 2046. The structure is 200 ft (60.9 m) long and 68 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesUS 150 WB
CrossesIl 29
LocationIl 29 NE Adams ST
RouteU.S. Route 150
Coordinates40.72303, -89.55551
Functional classUrban Other Principal 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
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
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 inspectionFebruary 2024
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 alignment6: Equal to present minimum criteria
Operating rating40.7 US tons
Inventory rating24.3 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length200 ft (60.9 m)
Longest span60 ft (18.3 m)
Deck width68 ft (20.8 m)
Roadway width66 ft (20 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30,000 (2021)
Projected traffic15,150 by 2046
Trucks3%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed3.1 mi (5 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 WB over Il 29 built?

It was built in 1995, making it 30 years old in 2025.

What condition is US 150 WB over Il 29 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 February 2024.

How much traffic does US 150 WB over Il 29 carry?

About 30,000 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is US 150 WB over Il 29?

The structure is 200 ft (60.9 m) long with a longest span of 60 ft (18.3 m) and a deck 68 ft wide.

Who owns US 150 WB over Il 29?

It is owned by the State Highway Agency.