US Bridges

Ill 4 & 150 over Cox Creek

Fair

Randolph County, Illinois · Near Ecl Steeleville · Structure no. 079003800000000

Built
1977
48 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
193 ft
4 main spans
Daily traffic
4,900
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 4 & 150 over Cox Creek is a steel continuous stringer/multi-beam or girder carrying Ill 4 & 150 over Cox Creek in Randolph County, Illinois. It was built in 1977, so it is 48 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 4,900 vehicles a day, roughly 25% of them trucks, projected to reach 4,747 by 2046. The structure is 193 ft (58.8 m) long and 46 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

Location

Open in Google Maps
CarriesIll 4 & 150
CrossesCox Creek
LocationNear Ecl Steeleville
RouteState Highway 4
CountyRandolph County
StateIllinois
Coordinates38.0113, -89.64609
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
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 geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.6 US tons
Inventory rating28.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length193 ft (58.8 m)
Longest span53 ft (16.2 m)
Deck width46 ft (14 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,900 (2023)
Projected traffic4,747 by 2046
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 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 Ill 4 & 150 over Cox Creek built?

It was built in 1977, making it 48 years old in 2025.

What condition is Ill 4 & 150 over Cox Creek 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 September 2024.

How much traffic does Ill 4 & 150 over Cox Creek carry?

About 4,900 vehicles per day (2023 count), of which roughly 25% are trucks.

How long is Ill 4 & 150 over Cox Creek?

The structure is 193 ft (58.8 m) long with a longest span of 53 ft (16.2 m) and a deck 46 ft wide.

Who owns Ill 4 & 150 over Cox Creek?

It is owned by the State Highway Agency.