US Bridges

Ch 6(FAS 522) over Jordan Slough

Good

Douglas County, Illinois · .85 MI SE Fairland · Structure no. 021431300000000

Built
1975
50 years old
Condition
Good
inspected February 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
77 ft
2 main spans
Daily traffic
450
2022 count
Owner
County
County Highway Agency

About this bridge

Ch 6(FAS 522) over Jordan Slough is a prestressed concrete box beam or girders - multiple carrying Ch 6(FAS 522) over Jordan Slough in Douglas County, Illinois. It was built in 1975, so it is 50 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 450 vehicles a day, roughly 13% of them trucks, projected to reach 505 by 2046. The structure is 77 ft (23.6 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCh 6(FAS 522)
CrossesJordan Slough
Location.85 MI SE Fairland
RouteCounty Highway 0
CountyDouglas County
StateIllinois
Coordinates39.86526, -88.09495
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2025
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48.9 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length77 ft (23.6 m)
Longest span37 ft (11.3 m)
Deck width30 ft (9.2 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic450 (2022)
Projected traffic505 by 2046
Trucks13%
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 Ch 6(FAS 522) over Jordan Slough built?

It was built in 1975, making it 50 years old in 2025.

What condition is Ch 6(FAS 522) over Jordan Slough 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 2025.

How much traffic does Ch 6(FAS 522) over Jordan Slough carry?

About 450 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is Ch 6(FAS 522) over Jordan Slough?

The structure is 77 ft (23.6 m) long with a longest span of 37 ft (11.3 m) and a deck 30 ft wide.

Who owns Ch 6(FAS 522) over Jordan Slough?

It is owned by the County Highway Agency.