US Bridges

Millburn Road over North Mill Creek

Good

Lake County, Illinois · 0.4 MI E of US45 · Structure no. 049307500000000

Built
2007
18 years old
Condition
Good
inspected April 2024
Type
Slab
Concrete
Length
117 ft
3 main spans
Daily traffic
9,000
2023 count
Owner
County
County Highway Agency

About this bridge

Millburn Road over North Mill Creek is a concrete slab carrying Millburn Road over North Mill Creek in Lake 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 9,000 vehicles a day, roughly 4% of them trucks, projected to reach 9,999 by 2046. The structure is 117 ft (35.8 m) long and 59 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesMillburn Road
CrossesNorth Mill Creek
Location0.4 MI E of US45
Coordinates42.42474, -87.99733
Functional classUrban Minor Arterial

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.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length117 ft (35.8 m)
Longest span43 ft (13.1 m)
Deck width59 ft (18.1 m)
Roadway width41 ft (12.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,000 (2023)
Projected traffic9,999 by 2046
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Millburn Road over North Mill Creek built?

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

What condition is Millburn Road over North Mill 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 Millburn Road over North Mill Creek carry?

About 9,000 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Millburn Road over North Mill Creek?

The structure is 117 ft (35.8 m) long with a longest span of 43 ft (13.1 m) and a deck 59 ft wide.

Who owns Millburn Road over North Mill Creek?

It is owned by the County Highway Agency.