US Bridges

US 24 over Spring Creek

Fair

Iroquois County, Illinois · 4.1 Miles E of US 45 · Structure no. 038003400000000

Built
1954
71 years old, rebuilt 1996
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
208 ft
4 main spans
Daily traffic
3,200
2023 count
Owner
State
State Highway Agency

About this bridge

US 24 over Spring Creek is a steel continuous stringer/multi-beam or girder carrying US 24 over Spring Creek in Iroquois County, Illinois. It was built in 1954 and reconstructed in 1996, so it is 71 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 3,200 vehicles a day, roughly 21% of them trucks, projected to reach 3,333 by 2046. The structure is 208 ft (63.3 m) long and 43 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesUS 24
CrossesSpring Creek
Location4.1 Miles E of US 45
RouteU.S. Route 24
Coordinates40.76895, -87.90122
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74.3 US tons
Inventory rating44.6 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length208 ft (63.3 m)
Longest span56 ft (17.1 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,200 (2023)
Projected traffic3,333 by 2046
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US 24 over Spring Creek built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 1996.

What condition is US 24 over Spring Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2024.

How much traffic does US 24 over Spring Creek carry?

About 3,200 vehicles per day (2023 count), of which roughly 21% are trucks.

How long is US 24 over Spring Creek?

The structure is 208 ft (63.3 m) long with a longest span of 56 ft (17.1 m) and a deck 43 ft wide.

Who owns US 24 over Spring Creek?

It is owned by the State Highway Agency.