US Bridges

Il 159 & Il 143 over NSRR

Fair

Madison County, Illinois · 0.1 MI NW Edwrdsvlle · Structure no. 060008400000000

Built
1936
89 years old, rebuilt 1991
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
153 ft
3 main spans
Daily traffic
11,500
2023 count
Owner
State
State Highway Agency

About this bridge

Il 159 & Il 143 over NSRR is a steel continuous stringer/multi-beam or girder carrying Il 159 & Il 143 over NSRR in Madison County, Illinois. It was built in 1936 and reconstructed in 1991, so it is 89 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 11,500 vehicles a day, roughly 4% of them trucks, projected to reach 12,091 by 2046. The structure is 153 ft (46.5 m) long and 55 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesIl 159 & Il 143
CrossesNSRR
Location0.1 MI NW Edwrdsvlle
RouteState Highway 143
CountyMadison County
StateIllinois
Coordinates38.82355, -89.9718
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.9 US tons
Inventory rating47.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length153 ft (46.5 m)
Longest span59 ft (18 m)
Deck width55 ft (16.8 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,500 (2023)
Projected traffic12,091 by 2046
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed3.1 mi (5 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 159 & Il 143 over NSRR built?

It was built in 1936, making it 89 years old in 2025. It was reconstructed in 1991.

What condition is Il 159 & Il 143 over NSRR 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 159 & Il 143 over NSRR carry?

About 11,500 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Il 159 & Il 143 over NSRR?

The structure is 153 ft (46.5 m) long with a longest span of 59 ft (18 m) and a deck 55 ft wide.

Who owns Il 159 & Il 143 over NSRR?

It is owned by the State Highway Agency.