US Bridges

US 41 over Creek

Fair

Lake County, Illinois · S of Mill Creek · Structure no. 049018400000000

Built
1999
26 years old
Condition
Fair
inspected February 2024
Type
Culvert
Concrete
Length
57 ft
4 main spans
Daily traffic
24,500
2023 count
Owner
State
State Highway Agency

About this bridge

US 41 over Creek is a concrete culvert carrying US 41 over Creek in Lake County, Illinois. It was built in 1999, so it is 26 years old, younger 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 24,500 vehicles a day, roughly 11% of them trucks, projected to reach 23,230 by 2046. The structure is 57 ft (17.3 m) long and 107 ft wide.

CarriesUS 41
CrossesCreek
LocationS of Mill Creek
RouteU.S. Route 41
Coordinates42.41834, -87.93804
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating91.8 US tons
Inventory rating55 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length57 ft (17.3 m)
Longest span12 ft (3.7 m)
Deck width107 ft (32.7 m)
Roadway width101 ft (30.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,500 (2023)
Projected traffic23,230 by 2046
Trucks11%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US 41 over Creek built?

It was built in 1999, making it 26 years old in 2025.

What condition is US 41 over 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 February 2024.

How much traffic does US 41 over Creek carry?

About 24,500 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is US 41 over Creek?

The structure is 57 ft (17.3 m) long with a longest span of 12 ft (3.7 m) and a deck 107 ft wide.

Who owns US 41 over Creek?

It is owned by the State Highway Agency.