US Bridges

Oak Lawn Rd-Mss 90 over I-270

Fair

Madison County, Illinois · 0.26 Me JCT 159 · Structure no. 060017500000000

Built
1964
61 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
260 ft
4 main spans
Daily traffic
800
2021 count
Owner
State
State Highway Agency

About this bridge

Oak Lawn Rd-Mss 90 over I-270 is a steel continuous stringer/multi-beam or girder carrying Oak Lawn Rd-Mss 90 over I-270 in Madison County, Illinois. It was built in 1964, so it is 61 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 800 vehicles a day, roughly 6% of them trucks, projected to reach 856 by 2046. The structure is 260 ft (79.3 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesOak Lawn Rd-Mss 90
CrossesI-270
Location0.26 Me JCT 159
RouteCity Street 0
CountyMadison County
StateIllinois
Coordinates38.75499, -89.95188
Functional classUrban Local

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.
Superstructure7 GoodSome minor problems.
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 geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating64.6 US tons
Inventory rating38.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 15
Structure length260 ft (79.3 m)
Longest span84 ft (25.6 m)
Deck width30 ft (9.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic800 (2021)
Projected traffic856 by 2046
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Oak Lawn Rd-Mss 90 over I-270 built?

It was built in 1964, making it 61 years old in 2025.

What condition is Oak Lawn Rd-Mss 90 over I-270 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 January 2024.

How much traffic does Oak Lawn Rd-Mss 90 over I-270 carry?

About 800 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is Oak Lawn Rd-Mss 90 over I-270?

The structure is 260 ft (79.3 m) long with a longest span of 84 ft (25.6 m) and a deck 30 ft wide.

Who owns Oak Lawn Rd-Mss 90 over I-270?

It is owned by the State Highway Agency.