US Bridges

I-55 SB over FAU 6405/LINDEN

Good

McLean County, Illinois · 0.7 MI E of US 51 · Structure no. 057023600000000

Built
2009
16 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
152 ft
3 main spans
Daily traffic
15,850
2023 count
Owner
State
State Highway Agency

About this bridge

I-55 SB over FAU 6405/LINDEN is a steel continuous stringer/multi-beam or girder carrying I-55 SB over FAU 6405/LINDEN in McLean County, Illinois. It was built in 2009, so it is 16 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 15,850 vehicles a day, roughly 24% of them trucks, projected to reach 15,251 by 2046. The structure is 152 ft (46.2 m) long and 65 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-55 SB
CrossesFAU 6405/LINDEN
Location0.7 MI E of US 51
RouteInterstate 55
CountyMcLean County
StateIllinois
Coordinates40.5385, -88.98329
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.3 US tons
Inventory rating42.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length152 ft (46.2 m)
Longest span60 ft (18.3 m)
Deck width65 ft (19.9 m)
Roadway width62 ft (18.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,850 (2023)
Projected traffic15,251 by 2046
Trucks24%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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 SB over FAU 6405/LINDEN built?

It was built in 2009, making it 16 years old in 2025.

What condition is I-55 SB over FAU 6405/LINDEN in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2024.

How much traffic does I-55 SB over FAU 6405/LINDEN carry?

About 15,850 vehicles per day (2023 count), of which roughly 24% are trucks.

How long is I-55 SB over FAU 6405/LINDEN?

The structure is 152 ft (46.2 m) long with a longest span of 60 ft (18.3 m) and a deck 65 ft wide.

Who owns I-55 SB over FAU 6405/LINDEN?

It is owned by the State Highway Agency.