US Bridges

I- 55 SB over Abandoned RR

Fair

Will County, Illinois · 2.3 M N of US 30 · Structure no. 099002300000000

Built
1956
69 years old, rebuilt 2007
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
122 ft
3 main spans
Daily traffic
41,750
2024 count
Owner
State
State Highway Agency

About this bridge

I- 55 SB over Abandoned RR is a steel continuous stringer/multi-beam or girder carrying I- 55 SB over Abandoned RR in Will County, Illinois. It was built in 1956 and reconstructed in 2007, 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 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 41,750 vehicles a day, roughly 13% of them trucks, projected to reach 54,288 by 2046. The structure is 122 ft (37.3 m) long and 55 ft wide.

Location

Open in Google Maps
CarriesI- 55 SB
CrossesAbandoned RR
Location2.3 M N of US 30
RouteInterstate 55
CountyWill County
StateIllinois
Coordinates41.61628, -88.16327
Functional classUrban Principal Arterial - Interstate

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.2 US tons
Inventory rating27.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length122 ft (37.3 m)
Longest span44 ft (13.4 m)
Deck width55 ft (16.7 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic41,750 (2024)
Projected traffic54,288 by 2046
Trucks13%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesOther
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I- 55 SB over Abandoned RR built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 2007.

What condition is I- 55 SB over Abandoned RR 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 2023.

How much traffic does I- 55 SB over Abandoned RR carry?

About 41,750 vehicles per day (2024 count), of which roughly 13% are trucks.

How long is I- 55 SB over Abandoned RR?

The structure is 122 ft (37.3 m) long with a longest span of 44 ft (13.4 m) and a deck 55 ft wide.

Who owns I- 55 SB over Abandoned RR?

It is owned by the State Highway Agency.