US Bridges

US 24/IL 100 over Spoon River Trib

Good

Fulton County, Illinois · .22 MI N US 136 · Structure no. 029006000000000

Built
2006
19 years old
Condition
Good
inspected October 2021
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
62 ft
1 main span
Daily traffic
1,900
2023 count
Owner
State
State Highway Agency

About this bridge

US 24/IL 100 over Spoon River Trib is a prestressed concrete stringer/multi-beam or girder carrying US 24/IL 100 over Spoon River Trib in Fulton County, Illinois. It was built in 2006, so it is 19 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 1,900 vehicles a day, roughly 15% of them trucks, projected to reach 2,273 by 2046. The structure is 62 ft (18.9 m) long and 39 ft wide. If it were closed, the detour would be 19.3 mi (31 km).

CarriesUS 24/IL 100
CrossesSpoon River Trib
Location.22 MI N US 136
RouteU.S. Route 24
Coordinates40.339, -90.18966
Functional classRural Principal Arterial - Other

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionOctober 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating70 US tons
Inventory rating43.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length62 ft (18.9 m)
Longest span59 ft (18.1 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,900 (2023)
Projected traffic2,273 by 2046
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.3 mi (31 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/IL 100 over Spoon River Trib built?

It was built in 2006, making it 19 years old in 2025.

What condition is US 24/IL 100 over Spoon River Trib 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 October 2021.

How much traffic does US 24/IL 100 over Spoon River Trib carry?

About 1,900 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is US 24/IL 100 over Spoon River Trib?

The structure is 62 ft (18.9 m) long with a longest span of 59 ft (18.1 m) and a deck 39 ft wide.

Who owns US 24/IL 100 over Spoon River Trib?

It is owned by the State Highway Agency.