US Bridges

SB I-294 over US 12 20-45

Good

Cook County, Illinois · 0.6 M NW Ill 171 P10 · Structure no. 016902300000000

Built
2020
5 years old
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
335 ft
2 main spans
Daily traffic
76,550
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

SB I-294 over US 12 20-45 is a prestressed concrete continuous stringer/multi-beam or girder carrying SB I-294 over US 12 20-45 in Cook County, Illinois. It was built in 2020, so it is 5 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 76,550 vehicles a day, roughly 19% of them trucks, projected to reach 94,700 by 2040. The structure is 335 ft (102 m) long and 97 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSB I-294
CrossesUS 12 20-45
Location0.6 M NW Ill 171 P10
RouteInterstate 294
CountyCook County
StateIllinois
Coordinates41.74641, -87.85445
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating95.3 US tons
Inventory rating53.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length335 ft (102 m)
Longest span165 ft (50.2 m)
Deck width97 ft (29.7 m)
Roadway width94 ft (28.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic76,550 (2023)
Projected traffic94,700 by 2040
Trucks19%
Lanes on structure5
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
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 Toll Authority
Maintained byState Toll Authority
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SB I-294 over US 12 20-45 built?

It was built in 2020, making it 5 years old in 2025.

What condition is SB I-294 over US 12 20-45 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 May 2024.

How much traffic does SB I-294 over US 12 20-45 carry?

About 76,550 vehicles per day (2023 count), of which roughly 19% are trucks.

How long is SB I-294 over US 12 20-45?

The structure is 335 ft (102 m) long with a longest span of 165 ft (50.2 m) and a deck 97 ft wide.

Who owns SB I-294 over US 12 20-45?

It is owned by the State Toll Authority.