US Bridges

Ill 8 over Trib Kickapoo CR

Poor

Peoria County, Illinois · 1 MI NW of Pottstown · Structure no. 072015800000000

Built
1991
34 years old
Condition
Poor
inspected February 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
51 ft
1 main span
Daily traffic
2,750
2021 count
Owner
State
State Highway Agency

About this bridge

Ill 8 over Trib Kickapoo CR is a prestressed concrete box beam or girders - multiple carrying Ill 8 over Trib Kickapoo CR in Peoria County, Illinois. It was built in 1991, so it is 34 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 2,750 vehicles a day, roughly 5% of them trucks, projected to reach 2,778 by 2046. The structure is 51 ft (15.6 m) long and 32 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesIll 8
CrossesTrib Kickapoo CR
Location1 MI NW of Pottstown
RouteState Highway 8
Coordinates40.73354, -89.6757
Functional classUrban Collector

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 inspectionFebruary 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.5 US tons
Inventory rating29.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length51 ft (15.6 m)
Longest span49 ft (15 m)
Deck width32 ft (9.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,750 (2021)
Projected traffic2,778 by 2046
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 Ill 8 over Trib Kickapoo CR built?

It was built in 1991, making it 34 years old in 2025.

What condition is Ill 8 over Trib 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 February 2024.

How much traffic does Ill 8 over Trib Kickapoo CR carry?

About 2,750 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Ill 8 over Trib Kickapoo CR?

The structure is 51 ft (15.6 m) long with a longest span of 49 ft (15 m) and a deck 32 ft wide.

Who owns Ill 8 over Trib Kickapoo CR?

It is owned by the State Highway Agency.