US Bridges

Ch 42 over Trib. to Prairie Creek

Good

Iroquois County, Illinois · 1.5MIS/1.5MIE of Ashkum · Structure no. 038320500000000

Built
2023
2 years old
Condition
Good
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
60 ft
1 main span
Daily traffic
75
2022 count
Owner
County
County Highway Agency

About this bridge

Ch 42 over Trib. to Prairie Creek is a prestressed concrete box beam or girders - multiple carrying Ch 42 over Trib. to Prairie Creek in Iroquois County, Illinois. It was built in 2023, so it is 2 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 75 vehicles a day, projected to reach 75 by 2032. The structure is 60 ft (18.3 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCh 42
CrossesTrib. to Prairie Creek
Location1.5MIS/1.5MIE of Ashkum
RouteCounty Highway 0
Coordinates40.85901, -87.92267
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.7 US tons
Inventory rating52.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length60 ft (18.3 m)
Longest span57 ft (17.3 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2022)
Projected traffic75 by 2032
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 42 over Trib. to Prairie Creek built?

It was built in 2023, making it 2 years old in 2025.

What condition is Ch 42 over Trib. to Prairie 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 September 2023.

How much traffic does Ch 42 over Trib. to Prairie Creek carry?

About 75 vehicles per day (2022 count).

How long is Ch 42 over Trib. to Prairie Creek?

The structure is 60 ft (18.3 m) long with a longest span of 57 ft (17.3 m) and a deck 30 ft wide.

Who owns Ch 42 over Trib. to Prairie Creek?

It is owned by the County Highway Agency.