US Bridges

Il 3 over Black Creek

Good

Randolph County, Illinois · W of Wcl Red Bud · Structure no. 079004300000000

Built
1995
30 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
59 ft
1 main span
Daily traffic
8,400
2023 count
Owner
State
State Highway Agency

About this bridge

Il 3 over Black Creek is a prestressed concrete stringer/multi-beam or girder carrying Il 3 over Black Creek in Randolph County, Illinois. It was built in 1995, so it is 30 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 8,400 vehicles a day, roughly 10% of them trucks, projected to reach 8,080 by 2046. The structure is 59 ft (18 m) long and 35 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

CarriesIl 3
CrossesBlack Creek
LocationW of Wcl Red Bud
RouteState Highway 3
Coordinates38.2118, -90.00529
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.3 US tons
Inventory rating43.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length59 ft (18 m)
Longest span57 ft (17.4 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,400 (2023)
Projected traffic8,080 by 2046
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Il 3 over Black Creek built?

It was built in 1995, making it 30 years old in 2025.

What condition is Il 3 over Black Creek 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 September 2023.

How much traffic does Il 3 over Black Creek carry?

About 8,400 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Il 3 over Black Creek?

The structure is 59 ft (18 m) long with a longest span of 57 ft (17.4 m) and a deck 35 ft wide.

Who owns Il 3 over Black Creek?

It is owned by the State Highway Agency.