US Bridges

Ch 24 over Little Mackinaw Rive

FairPosted for load

Tazewell County, Illinois · CTR-26-T24NR2W · Structure no. 090500700000000

Built
1960
65 years old
Condition
Fair
inspected January 2025
Type
Culvert
Concrete
Length
35 ft
2 main spans
Daily traffic
175
2023 count
Owner
County
County Highway Agency

About this bridge

Ch 24 over Little Mackinaw Rive is a concrete culvert carrying Ch 24 over Little Mackinaw Rive in Tazewell County, Illinois. It was built in 1960, so it is 65 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. Its operating status is: posted for load restriction.

It carries about 175 vehicles a day, roughly 25% of them trucks, projected to reach 202 by 2046. The structure is 35 ft (10.8 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCh 24
CrossesLittle Mackinaw Rive
LocationCTR-26-T24NR2W
RouteCounty Highway 0
Coordinates40.50892, -89.29572
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating21.8 US tons
Inventory rating12.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length35 ft (10.8 m)
Longest span15 ft (4.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic175 (2023)
Projected traffic202 by 2046
Trucks25%
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 24 over Little Mackinaw Rive built?

It was built in 1960, making it 65 years old in 2025.

What condition is Ch 24 over Little Mackinaw Rive 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 January 2025.

How much traffic does Ch 24 over Little Mackinaw Rive carry?

About 175 vehicles per day (2023 count), of which roughly 25% are trucks.

How long is Ch 24 over Little Mackinaw Rive?

The structure is 35 ft (10.8 m) long with a longest span of 15 ft (4.5 m).

Who owns Ch 24 over Little Mackinaw Rive?

It is owned by the County Highway Agency.