US Bridges

I-294 SB over Flag CR North

Good

Cook County, Illinois · 0.9 M S US 34 P10 · Structure no. 016981200000000

Built
1958
67 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
134 ft
3 main spans
Daily traffic
89,000
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

I-294 SB over Flag CR North is a prestressed concrete stringer/multi-beam or girder carrying I-294 SB over Flag CR North in Cook County, Illinois. It was built in 1958, so it is 67 years old, older 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 89,000 vehicles a day, roughly 19% of them trucks, projected to reach 78,174 by 2046. The structure is 134 ft (40.8 m) long and 61 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-294 SB
CrossesFlag CR North
Location0.9 M S US 34 P10
RouteInterstate 294
Coordinates41.80551, -87.91161
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.4 US tons
Inventory rating36.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length134 ft (40.8 m)
Longest span43 ft (13.1 m)
Deck width61 ft (18.6 m)
Roadway width47 ft (14.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic89,000 (2023)
Projected traffic78,174 by 2046
Trucks19%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
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-294 SB over Flag CR North built?

It was built in 1958, making it 67 years old in 2025.

What condition is I-294 SB over Flag CR North 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 2023.

How much traffic does I-294 SB over Flag CR North carry?

About 89,000 vehicles per day (2023 count), of which roughly 19% are trucks.

How long is I-294 SB over Flag CR North?

The structure is 134 ft (40.8 m) long with a longest span of 43 ft (13.1 m) and a deck 61 ft wide.

Who owns I-294 SB over Flag CR North?

It is owned by the State Toll Authority.