US Bridges

Main ST / FAS 393 over Walnut Creek Trib

Good

Knox County, Illinois · E.CTR-16-T13NR3E · Structure no. 048503700000000

Built
2015
10 years old
Condition
Good
inspected March 2024
Type
Culvert
Concrete
Length
36 ft
Daily traffic
700
2022 count
Owner
County
County Highway Agency

About this bridge

Main ST / FAS 393 over Walnut Creek Trib is a concrete culvert carrying Main ST / FAS 393 over Walnut Creek Trib in Knox County, Illinois. It was built in 2015, so it is 10 years old, younger 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 700 vehicles a day, roughly 20% of them trucks, projected to reach 455 by 2046. The structure is 36 ft (11.1 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesMain ST / FAS 393
CrossesWalnut Creek Trib
LocationE.CTR-16-T13NR3E
RouteCounty Highway 0
Coordinates41.11428, -90.15445
Functional classRural Major 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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans0
Design loadHS 25 or greater
Structure length36 ft (11.1 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic700 (2022)
Projected traffic455 by 2046
Trucks20%
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 Main ST / FAS 393 over Walnut Creek Trib built?

It was built in 2015, making it 10 years old in 2025.

What condition is Main ST / FAS 393 over Walnut Creek Trib 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 March 2024.

How much traffic does Main ST / FAS 393 over Walnut Creek Trib carry?

About 700 vehicles per day (2022 count), of which roughly 20% are trucks.

How long is Main ST / FAS 393 over Walnut Creek Trib?

The structure is 36 ft (11.1 m) long with a longest span of 11 ft (3.4 m).

Who owns Main ST / FAS 393 over Walnut Creek Trib?

It is owned by the County Highway Agency.