US Bridges

Ch 42 over Spring Creek

Good

Iroquois County, Illinois · 4 M E of Gilman · Structure no. 038401000000000

Built
2009
16 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
71 ft
1 main span
Daily traffic
75
2022 count
Owner
County
County Highway Agency

About this bridge

Ch 42 over Spring Creek is a steel stringer/multi-beam or girder carrying Ch 42 over Spring Creek in Iroquois County, Illinois. It was built in 2009, so it is 16 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 8 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, roughly 44% of them trucks, projected to reach 76 by 2046. The structure is 71 ft (21.6 m) long and 30 ft wide.

CarriesCh 42
CrossesSpring Creek
Location4 M E of Gilman
RouteCounty Highway 0
Coordinates40.76859, -87.9208
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal 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 rating48.6 US tons
Inventory rating35.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length71 ft (21.6 m)
Longest span69 ft (20.9 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 traffic76 by 2046
Trucks44%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 Spring Creek built?

It was built in 2009, making it 16 years old in 2025.

What condition is Ch 42 over Spring 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 April 2023.

How much traffic does Ch 42 over Spring Creek carry?

About 75 vehicles per day (2022 count), of which roughly 44% are trucks.

How long is Ch 42 over Spring Creek?

The structure is 71 ft (21.6 m) long with a longest span of 69 ft (20.9 m) and a deck 30 ft wide.

Who owns Ch 42 over Spring Creek?

It is owned by the County Highway Agency.