US Bridges

FAS 491 Ch 15 over North Fork Salt Cre

Good

McLean County, Illinois · 4 Miles NE Leroy · Structure no. 057573500000000

Built
2018
7 years old
Condition
Good
inspected August 2024
Type
Culvert
Concrete Continuous
Length
33 ft
2 main spans
Daily traffic
100
2024 count
Owner
County
County Highway Agency

About this bridge

FAS 491 Ch 15 over North Fork Salt Cre is a concrete continuous culvert carrying FAS 491 Ch 15 over North Fork Salt Cre in McLean County, Illinois. It was built in 2018, so it is 7 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 100 vehicles a day, roughly 23% of them trucks, projected to reach 202 by 2046. The structure is 33 ft (10.1 m) long and 18 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesFAS 491 Ch 15
CrossesNorth Fork Salt Cre
Location4 Miles NE Leroy
RouteCounty Highway 0
Coordinates40.3733, -88.65066
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 inspectionAugust 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74.6 US tons
Inventory rating57.5 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 25 or greater
Structure length33 ft (10.1 m)
Longest span16 ft (4.9 m)
Deck width18 ft (5.5 m)
Roadway width52 ft (16 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2024)
Projected traffic202 by 2046
Trucks23%
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 491 Ch 15 over North Fork Salt Cre built?

It was built in 2018, making it 7 years old in 2025.

What condition is FAS 491 Ch 15 over North Fork Salt Cre 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 August 2024.

How much traffic does FAS 491 Ch 15 over North Fork Salt Cre carry?

About 100 vehicles per day (2024 count), of which roughly 23% are trucks.

How long is FAS 491 Ch 15 over North Fork Salt Cre?

The structure is 33 ft (10.1 m) long with a longest span of 16 ft (4.9 m) and a deck 18 ft wide.

Who owns FAS 491 Ch 15 over North Fork Salt Cre?

It is owned by the County Highway Agency.