US Bridges

FAU 6998 (ch 20) over Lake Vermilion

Fair

Vermilion County, Illinois · 0.7 MI W of Il 1 / US 136 · Structure no. 092602500000000

Built
1998
27 years old
Condition
Fair
inspected July 2023
Type
Culvert
Concrete Continuous
Length
28 ft
2 main spans
Daily traffic
3,800
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

FAU 6998 (ch 20) over Lake Vermilion is a concrete continuous culvert carrying FAU 6998 (ch 20) over Lake Vermilion in Vermilion County, Illinois. It was built in 1998, so it is 27 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 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 3,800 vehicles a day, roughly 3% of them trucks, projected to reach 4,394 by 2046. The structure is 28 ft (8.5 m) long and 40 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

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CarriesFAU 6998 (ch 20)
CrossesLake Vermilion
Location0.7 MI W of Il 1 / US 136
CountyVermilion County
StateIllinois
Coordinates40.16265, -87.64146
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
Channel and channel protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2023
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 geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating62.5 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span12 ft (3.7 m)
Deck width40 ft (12.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,800 (2023)
Projected traffic4,394 by 2046
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed8.7 mi (14 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was FAU 6998 (ch 20) over Lake Vermilion built?

It was built in 1998, making it 27 years old in 2025.

What condition is FAU 6998 (ch 20) over Lake Vermilion 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 July 2023.

How much traffic does FAU 6998 (ch 20) over Lake Vermilion carry?

About 3,800 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is FAU 6998 (ch 20) over Lake Vermilion?

The structure is 28 ft (8.5 m) long with a longest span of 12 ft (3.7 m) and a deck 40 ft wide.

Who owns FAU 6998 (ch 20) over Lake Vermilion?

It is owned by the City or Municipal Highway Agency.