US Bridges

County Line Road over Kankakee River

Fair

Will County, Illinois · 1.4 M N Lorenzo RD · Structure no. 099330900000000

Built
1974
51 years old, rebuilt 2017
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
877 ft
6 main spans
Daily traffic
1,250
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

County Line Road over Kankakee River is a steel continuous stringer/multi-beam or girder carrying County Line Road over Kankakee River in Will County, Illinois. It was built in 1974 and reconstructed in 2017, so it is 51 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 1,250 vehicles a day, roughly 11% of them trucks, projected to reach 1,800 by 2046. The structure is 877 ft (267.4 m) long and 32 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesCounty Line Road
CrossesKankakee River
Location1.4 M N Lorenzo RD
RouteCounty Highway 0
CountyWill County
StateIllinois
Coordinates41.36809, -88.24893
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating100 US tons
Inventory rating60 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length877 ft (267.4 m)
Longest span145 ft (44.2 m)
Deck width32 ft (9.8 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,250 (2023)
Projected traffic1,800 by 2046
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 County Line Road over Kankakee River built?

It was built in 1974, making it 51 years old in 2025. It was reconstructed in 2017.

What condition is County Line Road over Kankakee River 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 October 2023.

How much traffic does County Line Road over Kankakee River carry?

About 1,250 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is County Line Road over Kankakee River?

The structure is 877 ft (267.4 m) long with a longest span of 145 ft (44.2 m) and a deck 32 ft wide.

Who owns County Line Road over Kankakee River?

It is owned by the Town or Township Highway Agency.