US Bridges

Lake Road over Ravine

PoorPosted for load

Lake County, Illinois · Lake RD at Woodbine · Structure no. 049685200000000

Built
1912
113 years old, rebuilt 1978
Condition
Poor
inspected April 2024
Type
Arch - Deck
Concrete
Length
106 ft
3 main spans
Daily traffic
525
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Lake Road over Ravine is a concrete arch - deck carrying Lake Road over Ravine in Lake County, Illinois. It was built in 1912 and reconstructed in 1978, so it is 113 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 525 vehicles a day, roughly 6% of them trucks, projected to reach 328 by 2046. The structure is 106 ft (32.3 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesLake Road
CrossesRavine
LocationLake RD at Woodbine
RouteCity Street 0
CountyLake County
StateIllinois
Coordinates42.25771, -87.82439
Functional classUrban Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating23.3 US tons
Inventory rating13.9 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length106 ft (32.3 m)
Longest span40 ft (12.2 m)
Deck width28 ft (8.4 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic525 (2023)
Projected traffic328 by 2046
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$464,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Lake Road over Ravine built?

It was built in 1912, making it 113 years old in 2025. It was reconstructed in 1978.

What condition is Lake Road over Ravine in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2024.

How much traffic does Lake Road over Ravine carry?

About 525 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is Lake Road over Ravine?

The structure is 106 ft (32.3 m) long with a longest span of 40 ft (12.2 m) and a deck 28 ft wide.

Who owns Lake Road over Ravine?

It is owned by the City or Municipal Highway Agency.