US Bridges

US 45 over Stream

Fair

Johnson County, Illinois · S of Williamson CO · Structure no. 044000100000000

Built
1956
69 years old
Condition
Fair
inspected February 2023
Type
Slab
Concrete Continuous
Length
100 ft
3 main spans
Daily traffic
1,450
2023 count
Owner
State
State Highway Agency

About this bridge

US 45 over Stream is a concrete continuous slab carrying US 45 over Stream in Johnson County, Illinois. It was built in 1956, so it is 69 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 1,450 vehicles a day, roughly 19% of them trucks, projected to reach 1,418 by 2046. The structure is 100 ft (30.4 m) long and 36 ft wide. If it were closed, the detour would be 32.9 mi (53 km).

Location

Open in Google Maps
CarriesUS 45
CrossesStream
LocationS of Williamson CO
RouteU.S. Route 45
CountyJohnson County
StateIllinois
Coordinates37.59857, -88.7352
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.6 US tons
Inventory rating38.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length100 ft (30.4 m)
Longest span36 ft (11.1 m)
Deck width36 ft (11.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,450 (2023)
Projected traffic1,418 by 2046
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed32.9 mi (53 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 45 over Stream built?

It was built in 1956, making it 69 years old in 2025.

What condition is US 45 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 February 2023.

How much traffic does US 45 over Stream carry?

About 1,450 vehicles per day (2023 count), of which roughly 19% are trucks.

How long is US 45 over Stream?

The structure is 100 ft (30.4 m) long with a longest span of 36 ft (11.1 m) and a deck 36 ft wide.

Who owns US 45 over Stream?

It is owned by the State Highway Agency.