US Bridges

US 30 over Stream

Fair

Lee County, Illinois · 0.2 MI W of I-39 · Structure no. 052200500000000

Built
1984
41 years old
Condition
Fair
inspected March 2023
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
1,450
2023 count
Owner
State
State Highway Agency

About this bridge

US 30 over Stream is a concrete culvert carrying US 30 over Stream in Lee County, Illinois. It was built in 1984, so it is 41 years old, younger 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 1,450 vehicles a day, roughly 21% of them trucks, projected to reach 1,667 by 2046. The structure is 23 ft (7.1 m) long and 67 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesUS 30
CrossesStream
Location0.2 MI W of I-39
RouteU.S. Route 30
CountyLee County
StateIllinois
Coordinates41.76057, -89.01336
Functional classRural Minor 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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.8 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length23 ft (7.1 m)
Longest span11 ft (3.4 m)
Deck width67 ft (20.3 m)
Roadway width53 ft (16.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,450 (2023)
Projected traffic1,667 by 2046
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 30 over Stream built?

It was built in 1984, making it 41 years old in 2025.

What condition is US 30 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 March 2023.

How much traffic does US 30 over Stream carry?

About 1,450 vehicles per day (2023 count), of which roughly 21% are trucks.

How long is US 30 over Stream?

The structure is 23 ft (7.1 m) long with a longest span of 11 ft (3.4 m) and a deck 67 ft wide.

Who owns US 30 over Stream?

It is owned by the State Highway Agency.