US Bridges

Il 143 over Indian Creek

Good

Madison County, Illinois · 3.5 M NW Edwardsvill · Structure no. 060034900000000

Built
2018
7 years old
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
250 ft
3 main spans
Daily traffic
10,500
2023 count
Owner
State
State Highway Agency

About this bridge

Il 143 over Indian Creek is a steel continuous stringer/multi-beam or girder carrying Il 143 over Indian Creek in Madison County, Illinois. It was built in 2018, so it is 7 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 10,500 vehicles a day, roughly 9% of them trucks, projected to reach 11,021 by 2046. The structure is 250 ft (76.2 m) long and 43 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

CarriesIl 143
CrossesIndian Creek
Location3.5 M NW Edwardsvill
RouteState Highway 143
Coordinates38.8412, -90.03244
Functional classUrban Other Principal Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.1 US tons
Inventory rating47.2 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length250 ft (76.2 m)
Longest span96 ft (29.3 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,500 (2023)
Projected traffic11,021 by 2046
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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 143 over Indian Creek built?

It was built in 2018, making it 7 years old in 2025.

What condition is Il 143 over Indian 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 May 2024.

How much traffic does Il 143 over Indian Creek carry?

About 10,500 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is Il 143 over Indian Creek?

The structure is 250 ft (76.2 m) long with a longest span of 96 ft (29.3 m) and a deck 43 ft wide.

Who owns Il 143 over Indian Creek?

It is owned by the State Highway Agency.