US Bridges

Il 4 over US 40 Csxrr

Good

Madison County, Illinois · 3.2 MI S of I-70 · Structure no. 060021000000000

Built
1980
45 years old
Condition
Good
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
505 ft
4 main spans
Daily traffic
7,750
2023 count
Owner
State
State Highway Agency

About this bridge

Il 4 over US 40 Csxrr is a steel continuous stringer/multi-beam or girder carrying Il 4 over US 40 Csxrr in Madison County, Illinois. It was built in 1980, so it is 45 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 7,750 vehicles a day, roughly 17% of them trucks, projected to reach 7,223 by 2046. The structure is 505 ft (154 m) long and 46 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

Location

Open in Google Maps
CarriesIl 4
CrossesUS 40 Csxrr
Location3.2 MI S of I-70
RouteState Highway 4
CountyMadison County
StateIllinois
Coordinates38.71607, -89.80224
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.5 US tons
Inventory rating39.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length505 ft (154 m)
Longest span133 ft (40.5 m)
Deck width46 ft (14 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,750 (2023)
Projected traffic7,223 by 2046
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed29.8 mi (48 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 Il 4 over US 40 Csxrr built?

It was built in 1980, making it 45 years old in 2025.

What condition is Il 4 over US 40 Csxrr in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2025.

How much traffic does Il 4 over US 40 Csxrr carry?

About 7,750 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is Il 4 over US 40 Csxrr?

The structure is 505 ft (154 m) long with a longest span of 133 ft (40.5 m) and a deck 46 ft wide.

Who owns Il 4 over US 40 Csxrr?

It is owned by the State Highway Agency.