US Bridges

Il 140 over I-55

Fair

Madison County, Illinois · Hamel · Structure no. 060007300000000

Built
1956
69 years old, rebuilt 1970
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
214 ft
4 main spans
Daily traffic
8,550
2023 count
Owner
State
State Highway Agency

About this bridge

Il 140 over I-55 is a steel continuous stringer/multi-beam or girder carrying Il 140 over I-55 in Madison County, Illinois. It was built in 1956 and reconstructed in 1970, so it is 69 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 8,550 vehicles a day, roughly 24% of them trucks, projected to reach 9,095 by 2046. The structure is 214 ft (65.2 m) long and 88 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesIl 140
CrossesI-55
LocationHamel
RouteState Highway 140
Coordinates38.88894, -89.8383
Functional classRural Principal Arterial - Other

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.
Substructure7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84.3 US tons
Inventory rating50.4 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length214 ft (65.2 m)
Longest span57 ft (17.5 m)
Deck width88 ft (26.9 m)
Roadway width85 ft (25.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,550 (2023)
Projected traffic9,095 by 2046
Trucks24%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed9.9 mi (16 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 140 over I-55 built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1970.

What condition is Il 140 over I-55 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 April 2024.

How much traffic does Il 140 over I-55 carry?

About 8,550 vehicles per day (2023 count), of which roughly 24% are trucks.

How long is Il 140 over I-55?

The structure is 214 ft (65.2 m) long with a longest span of 57 ft (17.5 m) and a deck 88 ft wide.

Who owns Il 140 over I-55?

It is owned by the State Highway Agency.