Ch 12 over Stream

Fair

Piatt County, Illinois · 3.4 MI SE Cero Gordo · Structure no. 074315300000000

Built: 1939; 86 years old
Condition: Fair; inspected January 2025
Type: Culvert; Concrete
Length: 23 ft; 2 main spans
Daily traffic: 175; 2020 count
Owner: County; County Highway Agency

About this bridge

Ch 12 over Stream is a concrete culvert carrying Ch 12 over Stream in Piatt County, Illinois. It was built in 1939, so it is 86 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 175 vehicles a day, roughly 11% of them trucks, projected to reach 177 by 2046. The structure is 23 ft (6.9 m) long and 36 ft wide.

Location

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CarriesCh 12

CrossesStream

Location3.4 MI SE Cero Gordo

RouteCounty Highway 0

CountyPiatt County

StateIllinois

Coordinates39.85048, -88.69299

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.

Component	Rating	Meaning
Channel and channel protection	6 Satisfactory	Structural elements show some minor deterioration.
Culvert	6 Satisfactory	Structural elements show some minor deterioration.

Last inspectionJanuary 2025

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 geometry8: Equal to present desirable criteria

Waterway adequacy6: Equal to present minimum criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating36 US tons

Inventory rating21.4 US tons

Structure

Structure typeCulvert

MaterialConcrete

DeckNot applicable

Main spans2

Design loadUnknown

Structure length23 ft (6.9 m)

Longest span11 ft (3.3 m)

Deck width36 ft (11 m)

Roadway width36 ft (11 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic175 (2020)

Projected traffic177 by 2046

Trucks11%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed—

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 12 over Stream built?

It was built in 1939, making it 86 years old in 2025.

What condition is Ch 12 over Stream 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 12 over Stream carry?

About 175 vehicles per day (2020 count), of which roughly 11% are trucks.

How long is Ch 12 over Stream?

The structure is 23 ft (6.9 m) long with a longest span of 11 ft (3.3 m) and a deck 36 ft wide.

Who owns Ch 12 over Stream?

It is owned by the County Highway Agency.