US Bridges

FAS-790 over Wills Creek

Good

Marion County, Illinois · 4 MI W Alma · Structure no. 061501100000000

Built
1938
87 years old
Condition
Good
inspected February 2024
Type
Culvert
Concrete Continuous
Length
28 ft
2 main spans
Daily traffic
175
2022 count
Owner
County
County Highway Agency

About this bridge

FAS-790 over Wills Creek is a concrete continuous culvert carrying FAS-790 over Wills Creek in Marion County, Illinois. It was built in 1938, so it is 87 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 175 vehicles a day, roughly 10% of them trucks, projected to reach 202 by 2046. The structure is 28 ft (8.5 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesFAS-790
CrossesWills Creek
Location4 MI W Alma
RouteCounty Highway 0
Coordinates38.70726, -88.98981
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating26.1 US tons
Inventory rating15.3 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length28 ft (8.5 m)
Longest span13 ft (4.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic175 (2022)
Projected traffic202 by 2046
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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-790 over Wills Creek built?

It was built in 1938, making it 87 years old in 2025.

What condition is FAS-790 over Wills Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2024.

How much traffic does FAS-790 over Wills Creek carry?

About 175 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is FAS-790 over Wills Creek?

The structure is 28 ft (8.5 m) long with a longest span of 13 ft (4.1 m).

Who owns FAS-790 over Wills Creek?

It is owned by the County Highway Agency.