US Bridges

I-180 over Stream

Fair

Bureau County, Illinois · 1.5 MI S. of FAI 80 · Structure no. 006200000000000

Built
1968
57 years old
Condition
Fair
inspected January 2024
Type
Culvert
Concrete
Length
29 ft
3 main spans
Daily traffic
3,300
2023 count
Owner
State
State Highway Agency

About this bridge

I-180 over Stream is a concrete culvert carrying I-180 over Stream 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 3,300 vehicles a day, roughly 20% of them trucks, projected to reach 3,535 by 2046. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesI-180
CrossesStream
Location1.5 MI S. of FAI 80
RouteInterstate 180
CountyBureau County
StateIllinois
Coordinates41.38445, -89.38294
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.8 US tons
Inventory rating31.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20 + Mod
Structure length29 ft (8.8 m)
Longest span9 ft (2.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,300 (2023)
Projected traffic3,535 by 2046
Trucks20%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-180 over Stream built?

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

What condition is I-180 over Stream 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 January 2024.

How much traffic does I-180 over Stream carry?

About 3,300 vehicles per day (2023 count), of which roughly 20% are trucks.

How long is I-180 over Stream?

The structure is 29 ft (8.8 m) long with a longest span of 9 ft (2.7 m).

Who owns I-180 over Stream?

It is owned by the State Highway Agency.