US Bridges

Il 146-FAP 885 over Cn/Ic Railroad

Fair

Johnson County, Illinois · 0.3 MI W Pope CO · Structure no. 044005600000000

Built
2002
23 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
143 ft
3 main spans
Daily traffic
900
2023 count
Owner
State
State Highway Agency

About this bridge

Il 146-FAP 885 over Cn/Ic Railroad is a steel continuous stringer/multi-beam or girder carrying Il 146-FAP 885 over Cn/Ic Railroad in Johnson County, Illinois. It was built in 2002, so it is 23 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 6 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 900 vehicles a day, roughly 12% of them trucks, projected to reach 1,050 by 2046. The structure is 143 ft (43.5 m) long and 35 ft wide. If it were closed, the detour would be 18 mi (29 km).

CarriesIl 146-FAP 885
CrossesCn/Ic Railroad
Location0.3 MI W Pope CO
RouteState Highway 146
Coordinates37.39011, -88.71622
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating96.5 US tons
Inventory rating57.9 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length143 ft (43.5 m)
Longest span54 ft (16.5 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic900 (2023)
Projected traffic1,050 by 2046
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed18 mi (29 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Il 146-FAP 885 over Cn/Ic Railroad built?

It was built in 2002, making it 23 years old in 2025.

What condition is Il 146-FAP 885 over Cn/Ic Railroad 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 April 2023.

How much traffic does Il 146-FAP 885 over Cn/Ic Railroad carry?

About 900 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is Il 146-FAP 885 over Cn/Ic Railroad?

The structure is 143 ft (43.5 m) long with a longest span of 54 ft (16.5 m) and a deck 35 ft wide.

Who owns Il 146-FAP 885 over Cn/Ic Railroad?

It is owned by the State Highway Agency.