US Bridges

I-355 NB over Fiddyment Creek

Good

Will County, Illinois · .5M N of IL7 · Structure no. 099032900000000

Built
2007
18 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
190 ft
1 main span
Daily traffic
72,300
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

I-355 NB over Fiddyment Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying I-355 NB over Fiddyment Creek in Will County, Illinois. It was built in 2007, so it is 18 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 72,300 vehicles a day, roughly 16% of them trucks, projected to reach 80,784 by 2046. The structure is 190 ft (57.9 m) long and 70 ft wide.

CarriesI-355 NB
CrossesFiddyment Creek
Location.5M N of IL7
RouteInterstate 355
Coordinates41.60112, -88.01176
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating100.3 US tons
Inventory rating60 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length190 ft (57.9 m)
Longest span130 ft (39.6 m)
Deck width70 ft (21.3 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic72,300 (2023)
Projected traffic80,784 by 2046
Trucks16%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a toll road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
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-355 NB over Fiddyment Creek built?

It was built in 2007, making it 18 years old in 2025.

What condition is I-355 NB over Fiddyment Creek 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 April 2024.

How much traffic does I-355 NB over Fiddyment Creek carry?

About 72,300 vehicles per day (2023 count), of which roughly 16% are trucks.

How long is I-355 NB over Fiddyment Creek?

The structure is 190 ft (57.9 m) long with a longest span of 130 ft (39.6 m) and a deck 70 ft wide.

Who owns I-355 NB over Fiddyment Creek?

It is owned by the State Toll Authority.