US Bridges

I-55 NB over FAP 704

Fair

McLean County, Illinois · Jct. FAI55 & Vet Pkw · Structure no. 057023700000000

Built
2004
21 years old
Condition
Fair
inspected February 2025
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
214 ft
2 main spans
Daily traffic
12,400
2023 count
Owner
State
State Highway Agency

About this bridge

I-55 NB over FAP 704 is a steel continuous stringer/multi-beam or girder carrying I-55 NB over FAP 704 in McLean County, Illinois. It was built in 2004, so it is 21 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 12,400 vehicles a day, roughly 32% of them trucks, projected to reach 11,817 by 2046. The structure is 214 ft (65.3 m) long and 73 ft wide.

Location

Open in Google Maps
CarriesI-55 NB
CrossesFAP 704
LocationJct. FAI55 & Vet Pkw
RouteInterstate 55
CountyMcLean County
StateIllinois
Coordinates40.53753, -88.94788
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2025
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 rating83.9 US tons
Inventory rating50.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length214 ft (65.3 m)
Longest span108 ft (32.8 m)
Deck width73 ft (22.2 m)
Roadway width70 ft (21.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,400 (2023)
Projected traffic11,817 by 2046
Trucks32%
Lanes on structure3
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-55 NB over FAP 704 built?

It was built in 2004, making it 21 years old in 2025.

What condition is I-55 NB over FAP 704 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 February 2025.

How much traffic does I-55 NB over FAP 704 carry?

About 12,400 vehicles per day (2023 count), of which roughly 32% are trucks.

How long is I-55 NB over FAP 704?

The structure is 214 ft (65.3 m) long with a longest span of 108 ft (32.8 m) and a deck 73 ft wide.

Who owns I-55 NB over FAP 704?

It is owned by the State Highway Agency.