US Bridges

FAS 450-CH 20 over Cedar Creek

Fair

Fulton County, Illinois · SW-12-T8NR1E · Structure no. 029320700000000

Built
1979
46 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
201 ft
3 main spans
Daily traffic
150
2020 count
Owner
County
County Highway Agency

About this bridge

FAS 450-CH 20 over Cedar Creek is a steel continuous stringer/multi-beam or girder carrying FAS 450-CH 20 over Cedar Creek in Fulton County, Illinois. It was built in 1979, so it is 46 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 150 vehicles a day, roughly 20% of them trucks, projected to reach 152 by 2046. The structure is 201 ft (61.3 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesFAS 450-CH 20
CrossesCedar Creek
LocationSW-12-T8NR1E
RouteCounty Highway 0
CountyFulton County
StateIllinois
Coordinates40.69081, -90.33669
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.3 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length201 ft (61.3 m)
Longest span77 ft (23.5 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2020)
Projected traffic152 by 2046
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 FAS 450-CH 20 over Cedar Creek built?

It was built in 1979, making it 46 years old in 2025.

What condition is FAS 450-CH 20 over Cedar Creek 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 November 2023.

How much traffic does FAS 450-CH 20 over Cedar Creek carry?

About 150 vehicles per day (2020 count), of which roughly 20% are trucks.

How long is FAS 450-CH 20 over Cedar Creek?

The structure is 201 ft (61.3 m) long with a longest span of 77 ft (23.5 m) and a deck 31 ft wide.

Who owns FAS 450-CH 20 over Cedar Creek?

It is owned by the County Highway Agency.