US Bridges

Il 159 NB and SB over FAI 270

Good

Madison County, Illinois · Int. of 159 and I270 · Structure no. 060032300000000

Built
2001
24 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
244 ft
2 main spans
Daily traffic
20,600
2023 count
Owner
State
State Highway Agency

About this bridge

Il 159 NB and SB over FAI 270 is a steel continuous stringer/multi-beam or girder carrying Il 159 NB and SB over FAI 270 in Madison County, Illinois. It was built in 2001, so it is 24 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 20,600 vehicles a day, roughly 5% of them trucks, projected to reach 19,688 by 2046. The structure is 244 ft (74.4 m) long and 84 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesIl 159 NB and SB
CrossesFAI 270
LocationInt. of 159 and I270
RouteState Highway 159
CountyMadison County
StateIllinois
Coordinates38.75573, -89.95666
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83.6 US tons
Inventory rating50 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length244 ft (74.4 m)
Longest span120 ft (36.5 m)
Deck width84 ft (25.7 m)
Roadway width81 ft (24.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,600 (2023)
Projected traffic19,688 by 2046
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.2 mi (2 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 159 NB and SB over FAI 270 built?

It was built in 2001, making it 24 years old in 2025.

What condition is Il 159 NB and SB over FAI 270 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 January 2024.

How much traffic does Il 159 NB and SB over FAI 270 carry?

About 20,600 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Il 159 NB and SB over FAI 270?

The structure is 244 ft (74.4 m) long with a longest span of 120 ft (36.5 m) and a deck 84 ft wide.

Who owns Il 159 NB and SB over FAI 270?

It is owned by the State Highway Agency.