US Bridges

Ill 147-FAS 932 over Cnic RR

Poor

Pope County, Illinois · 0.7 MI E Johnson CO · Structure no. 076002100000000

Built
1941
84 years old, rebuilt 2004
Condition
Poor
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
126 ft
3 main spans
Daily traffic
400
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 147-FAS 932 over Cnic RR is a steel continuous stringer/multi-beam or girder carrying Ill 147-FAS 932 over Cnic RR in Pope County, Illinois. It was built in 1941 and reconstructed in 2004, so it is 84 years old, older 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 2 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 400 vehicles a day, roughly 17% of them trucks, projected to reach 429 by 2046. The structure is 126 ft (38.3 m) long and 35 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

CarriesIll 147-FAS 932
CrossesCnic RR
Location0.7 MI E Johnson CO
RouteState Highway 147
Coordinates37.46144, -88.69767
Functional classRural Major 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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure2 CriticalAdvanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken.
Last inspectionFebruary 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82.9 US tons
Inventory rating47.8 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length126 ft (38.3 m)
Longest span48 ft (14.5 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2023)
Projected traffic429 by 2046
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed16.2 mi (26 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$405,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ill 147-FAS 932 over Cnic RR built?

It was built in 1941, making it 84 years old in 2025. It was reconstructed in 2004.

What condition is Ill 147-FAS 932 over Cnic RR 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 147-FAS 932 over Cnic RR carry?

About 400 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is Ill 147-FAS 932 over Cnic RR?

The structure is 126 ft (38.3 m) long with a longest span of 48 ft (14.5 m) and a deck 35 ft wide.

Who owns Ill 147-FAS 932 over Cnic RR?

It is owned by the State Highway Agency.