US Bridges

Ch 18(SCHOOL Rd) over Stevens Creek

Fair

Macon County, Illinois · 2.1 MI S of Maroa · Structure no. 058501000000000

Built
1969
56 years old
Condition
Fair
inspected January 2024
Type
Culvert
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
200
2020 count
Owner
County
County Highway Agency

About this bridge

Ch 18(SCHOOL Rd) over Stevens Creek is a concrete continuous culvert carrying Ch 18(SCHOOL Rd) over Stevens Creek in Macon County, Illinois. It was built in 1969, so it is 56 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 5 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 200 vehicles a day, roughly 19% of them trucks, projected to reach 202 by 2046. The structure is 26 ft (7.8 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesCh 18(SCHOOL Rd)
CrossesStevens Creek
Location2.1 MI S of Maroa
RouteCounty Highway 0
CountyMacon County
StateIllinois
Coordinates40.00779, -88.96692
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 protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating35.7 US tons
Inventory rating21.4 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 15
Structure length26 ft (7.8 m)
Longest span12 ft (3.8 m)
Deck width32 ft (9.7 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2020)
Projected traffic202 by 2046
Trucks19%
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 18(SCHOOL Rd) over Stevens Creek built?

It was built in 1969, making it 56 years old in 2025.

What condition is Ch 18(SCHOOL Rd) over Stevens 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 January 2024.

How much traffic does Ch 18(SCHOOL Rd) over Stevens Creek carry?

About 200 vehicles per day (2020 count), of which roughly 19% are trucks.

How long is Ch 18(SCHOOL Rd) over Stevens Creek?

The structure is 26 ft (7.8 m) long with a longest span of 12 ft (3.8 m) and a deck 32 ft wide.

Who owns Ch 18(SCHOOL Rd) over Stevens Creek?

It is owned by the County Highway Agency.