US Bridges

FAS 450-CH 20 over Gallett Creek

Fair

Fulton County, Illinois · W1/2-20-T8NR1E · Structure no. 029320400000000

Built
1990
35 years old
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
52 ft
1 main span
Daily traffic
225
2020 count
Owner
County
County Highway Agency

About this bridge

FAS 450-CH 20 over Gallett Creek is a prestressed concrete box beam or girders - multiple carrying FAS 450-CH 20 over Gallett Creek in Fulton County, Illinois. It was built in 1990, so it is 35 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 225 vehicles a day, roughly 27% of them trucks, projected to reach 227 by 2046. The structure is 52 ft (15.7 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesFAS 450-CH 20
CrossesGallett Creek
LocationW1/2-20-T8NR1E
RouteCounty Highway 0
Coordinates40.66435, -90.42241
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.3 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length52 ft (15.7 m)
Longest span50 ft (15.3 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic225 (2020)
Projected traffic227 by 2046
Trucks27%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Gallett Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is FAS 450-CH 20 over Gallett 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 October 2024.

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

About 225 vehicles per day (2020 count), of which roughly 27% are trucks.

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

The structure is 52 ft (15.7 m) long with a longest span of 50 ft (15.3 m) and a deck 30 ft wide.

Who owns FAS 450-CH 20 over Gallett Creek?

It is owned by the County Highway Agency.