US Bridges

Ill 143 over Mooney Creek

Fair

Madison County, Illinois · 0.5 M E JCT 157 · Structure no. 060018800000000

Built
1940
85 years old, rebuilt 1978
Condition
Fair
inspected May 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
28 ft
1 main span
Daily traffic
4,450
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 143 over Mooney Creek is a prestressed concrete box beam or girders - multiple carrying Ill 143 over Mooney Creek in Madison County, Illinois. It was built in 1940 and reconstructed in 1978, so it is 85 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 5 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 4,450 vehicles a day, roughly 9% of them trucks, projected to reach 4,548 by 2046. The structure is 28 ft (8.5 m) long and 34 ft wide. If it were closed, the detour would be 23 mi (37 km).

Location

Open in Google Maps
CarriesIll 143
CrossesMooney Creek
Location0.5 M E JCT 157
RouteState Highway 143
CountyMadison County
StateIllinois
Coordinates38.81336, -89.93843
Functional classUrban 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating85.3 US tons
Inventory rating52.5 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span26 ft (7.9 m)
Deck width34 ft (10.5 m)
Roadway width33 ft (10.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,450 (2023)
Projected traffic4,548 by 2046
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed23 mi (37 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 143 over Mooney Creek built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1978.

What condition is Ill 143 over Mooney 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 May 2024.

How much traffic does Ill 143 over Mooney Creek carry?

About 4,450 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is Ill 143 over Mooney Creek?

The structure is 28 ft (8.5 m) long with a longest span of 26 ft (7.9 m) and a deck 34 ft wide.

Who owns Ill 143 over Mooney Creek?

It is owned by the State Highway Agency.