US Bridges

Roger Williams over Ravine

Fair

Lake County, Illinois · 0.2M E Lk Michigan · Structure no. 049658200000000

Built
1915
110 years old, rebuilt 1982
Condition
Fair
inspected September 2024
Type
Tee Beam
Concrete Continuous
Length
208 ft
3 main spans
Daily traffic
3,750
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Roger Williams over Ravine is a concrete continuous tee beam carrying Roger Williams over Ravine in Lake County, Illinois. It was built in 1915 and reconstructed in 1982, so it is 110 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 5 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 3,750 vehicles a day, roughly 5% of them trucks, projected to reach 833 by 2046. The structure is 208 ft (63.4 m) long and 29 ft wide.

CarriesRoger Williams
CrossesRavine
Location0.2M E Lk Michigan
RouteCity Street 0
Coordinates42.16548, -87.78612
Functional classUrban Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.7 US tons
Inventory rating21.4 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length208 ft (63.4 m)
Longest span64 ft (19.5 m)
Deck width29 ft (8.8 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,750 (2023)
Projected traffic833 by 2046
Trucks5%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$956,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Roger Williams over Ravine built?

It was built in 1915, making it 110 years old in 2025. It was reconstructed in 1982.

What condition is Roger Williams over Ravine 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 2024.

How much traffic does Roger Williams over Ravine carry?

About 3,750 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Roger Williams over Ravine?

The structure is 208 ft (63.4 m) long with a longest span of 64 ft (19.5 m) and a deck 29 ft wide.

Who owns Roger Williams over Ravine?

It is owned by the City or Municipal Highway Agency.