US Bridges

US 6 over N. Kickapoo CR

Poor

LaSalle County, Illinois · 8.39 MI E of Ill 71 · Structure no. 050018500000000

Built
1980
45 years old
Condition
Poor
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
88 ft
1 main span
Daily traffic
2,850
2023 count
Owner
State
State Highway Agency

About this bridge

US 6 over N. Kickapoo CR is a prestressed concrete box beam or girders - multiple carrying US 6 over N. Kickapoo CR in LaSalle County, Illinois. It was built in 1980, so it is 45 years old, younger 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.

It carries about 2,850 vehicles a day, roughly 11% of them trucks, projected to reach 3,131 by 2046. The structure is 88 ft (26.9 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesUS 6
CrossesN. Kickapoo CR
Location8.39 MI E of Ill 71
RouteU.S. Route 6
CountyLaSalle County
StateIllinois
Coordinates41.31831, -88.65124
Functional classRural Minor Arterial

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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.1 US tons
Inventory rating27.9 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length88 ft (26.9 m)
Longest span84 ft (25.6 m)
Deck width33 ft (10.1 m)
Roadway width32 ft (9.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,850 (2023)
Projected traffic3,131 by 2046
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US 6 over N. Kickapoo CR built?

It was built in 1980, making it 45 years old in 2025.

What condition is US 6 over N. Kickapoo CR 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 August 2024.

How much traffic does US 6 over N. Kickapoo CR carry?

About 2,850 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is US 6 over N. Kickapoo CR?

The structure is 88 ft (26.9 m) long with a longest span of 84 ft (25.6 m) and a deck 33 ft wide.

Who owns US 6 over N. Kickapoo CR?

It is owned by the State Highway Agency.