US Bridges

I-94 NB over Mill Creek

Fair

Lake County, Illinois · I-94 2.5M N Ill 132 · Structure no. 049991800000000

Built
1958
67 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
130 ft
3 main spans
Daily traffic
39,100
2022 count
Owner
Toll Authority
State Toll Authority

About this bridge

I-94 NB over Mill Creek is a prestressed concrete stringer/multi-beam or girder carrying I-94 NB over Mill Creek in Lake 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 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 39,100 vehicles a day, roughly 15% of them trucks, projected to reach 31,866 by 2046. The structure is 130 ft (39.6 m) long and 39 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-94 NB
CrossesMill Creek
LocationI-94 2.5M N Ill 132
RouteInterstate 94
CountyLake County
StateIllinois
Coordinates42.41765, -87.94789
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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to 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 rating58.2 US tons
Inventory rating35.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length130 ft (39.6 m)
Longest span42 ft (12.8 m)
Deck width39 ft (12 m)
Roadway width34 ft (10.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic39,100 (2022)
Projected traffic31,866 by 2046
Trucks15%
Lanes on structure2
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-94 NB over Mill Creek built?

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

What condition is I-94 NB over Mill Creek 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 May 2024.

How much traffic does I-94 NB over Mill Creek carry?

About 39,100 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is I-94 NB over Mill Creek?

The structure is 130 ft (39.6 m) long with a longest span of 42 ft (12.8 m) and a deck 39 ft wide.

Who owns I-94 NB over Mill Creek?

It is owned by the State Toll Authority.