US Bridges

I-55 NB over Norfolk & So RR

Fair

Livingston County, Illinois · 0.5 MI N of Il 17 · Structure no. 053018700000000

Built
2011
14 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
151 ft
3 main spans
Daily traffic
11,450
2023 count
Owner
State
State Highway Agency

About this bridge

I-55 NB over Norfolk & So RR is a steel continuous stringer/multi-beam or girder carrying I-55 NB over Norfolk & So RR in Livingston County, Illinois. It was built in 2011, so it is 14 years old, younger 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 11,450 vehicles a day, roughly 31% of them trucks, projected to reach 12,524 by 2046. The structure is 151 ft (45.9 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-55 NB
CrossesNorfolk & So RR
Location0.5 MI N of Il 17
RouteInterstate 55
CountyLivingston County
StateIllinois
Coordinates41.10197, -88.44913
Functional classRural 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating96.8 US tons
Inventory rating57.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length151 ft (45.9 m)
Longest span65 ft (19.7 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,450 (2023)
Projected traffic12,524 by 2046
Trucks31%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.2 mi (2 km)
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-55 NB over Norfolk & So RR built?

It was built in 2011, making it 14 years old in 2025.

What condition is I-55 NB over Norfolk & So 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 March 2023.

How much traffic does I-55 NB over Norfolk & So RR carry?

About 11,450 vehicles per day (2023 count), of which roughly 31% are trucks.

How long is I-55 NB over Norfolk & So RR?

The structure is 151 ft (45.9 m) long with a longest span of 65 ft (19.7 m) and a deck 43 ft wide.

Who owns I-55 NB over Norfolk & So RR?

It is owned by the State Highway Agency.