US Bridges

Il 143 over NSRR Gwerr UPRR

Fair

Madison County, Illinois · 0.3 MI E of Il 3 · Structure no. 060021200000000

Built
1981
44 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
375 ft
3 main spans
Daily traffic
11,900
2023 count
Owner
State
State Highway Agency

About this bridge

Il 143 over NSRR Gwerr UPRR is a steel continuous stringer/multi-beam or girder carrying Il 143 over NSRR Gwerr UPRR in Madison County, Illinois. It was built in 1981, so it is 44 years old, younger 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 11,900 vehicles a day, roughly 7% of them trucks, projected to reach 13,268 by 2046. The structure is 375 ft (114.3 m) long and 69 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesIl 143
CrossesNSRR Gwerr UPRR
Location0.3 MI E of Il 3
RouteState Highway 143
CountyMadison County
StateIllinois
Coordinates38.85988, -90.10225
Functional classUrban Other Principal 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to 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 rating70.3 US tons
Inventory rating42.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length375 ft (114.3 m)
Longest span143 ft (43.7 m)
Deck width69 ft (21.1 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,900 (2023)
Projected traffic13,268 by 2046
Trucks7%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed6.2 mi (10 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 143 over NSRR Gwerr UPRR built?

It was built in 1981, making it 44 years old in 2025.

What condition is Il 143 over NSRR Gwerr UPRR 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 Il 143 over NSRR Gwerr UPRR carry?

About 11,900 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is Il 143 over NSRR Gwerr UPRR?

The structure is 375 ft (114.3 m) long with a longest span of 143 ft (43.7 m) and a deck 69 ft wide.

Who owns Il 143 over NSRR Gwerr UPRR?

It is owned by the State Highway Agency.