US Bridges

Ch 18 over Macon Creek

Fair

Kankakee County, Illinois · 2.25 MI SE Reddick · Structure no. 046343800000000

Built
1931
94 years old
Condition
Fair
inspected May 2024
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
650
2021 count
Owner
County
County Highway Agency

About this bridge

Ch 18 over Macon Creek is a concrete continuous culvert carrying Ch 18 over Macon Creek in Kankakee County, Illinois. It was built in 1931, so it is 94 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 650 vehicles a day, roughly 15% of them trucks, projected to reach 663 by 2046. The structure is 23 ft (6.9 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCh 18
CrossesMacon Creek
Location2.25 MI SE Reddick
Coordinates41.06662, -88.21073
Functional classRural Major Collector

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 inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length23 ft (6.9 m)
Longest span10 ft (3.1 m)
Deck width31 ft (9.4 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic650 (2021)
Projected traffic663 by 2046
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 18 over Macon Creek built?

It was built in 1931, making it 94 years old in 2025.

What condition is Ch 18 over Macon 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 May 2024.

How much traffic does Ch 18 over Macon Creek carry?

About 650 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is Ch 18 over Macon Creek?

The structure is 23 ft (6.9 m) long with a longest span of 10 ft (3.1 m) and a deck 31 ft wide.

Who owns Ch 18 over Macon Creek?

It is owned by the County Highway Agency.