US Bridges

Leonard Drive over Sherman Comers Creek

Fair

Lake County, Illinois · 1800S of Gage Lk RD · Structure no. 049640100000000

Built
1992
33 years old
Condition
Fair
inspected September 2023
Type
Culvert
Concrete
Length
24 ft
2 main spans
Daily traffic
850
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Leonard Drive over Sherman Comers Creek is a concrete culvert carrying Leonard Drive over Sherman Comers Creek in Lake County, Illinois. It was built in 1992, so it is 33 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 850 vehicles a day, roughly 2% of them trucks, projected to reach 1,010 by 2046. The structure is 24 ft (7.3 m) long and 36 ft wide.

Location

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CarriesLeonard Drive
CrossesSherman Comers Creek
Location1800S of Gage Lk RD
RouteCity Street 0
CountyLake County
StateIllinois
Coordinates42.34817, -87.95731
Functional classUrban Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span11 ft (3.4 m)
Deck width36 ft (11 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic850 (2023)
Projected traffic1,010 by 2046
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Leonard Drive over Sherman Comers Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is Leonard Drive over Sherman Comers 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 September 2023.

How much traffic does Leonard Drive over Sherman Comers Creek carry?

About 850 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is Leonard Drive over Sherman Comers Creek?

The structure is 24 ft (7.3 m) long with a longest span of 11 ft (3.4 m) and a deck 36 ft wide.

Who owns Leonard Drive over Sherman Comers Creek?

It is owned by the City or Municipal Highway Agency.