US Bridges

Ch 12S over TR 199A

Fair

Logan County, Illinois · 1 MI S Elkhart · Structure no. 054305700000000

Built
1982
43 years old
Condition
Fair
inspected December 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
189 ft
3 main spans
Daily traffic
175
2022 count
Owner
County
County Highway Agency

About this bridge

Ch 12S over TR 199A is a prestressed concrete box beam or girders - multiple carrying Ch 12S over TR 199A in Logan County, Illinois. It was built in 1982, so it is 43 years old, younger 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 175 vehicles a day, roughly 17% of them trucks, projected to reach 315 by 2046. The structure is 189 ft (57.6 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCh 12S
CrossesTR 199A
Location1 MI S Elkhart
RouteCounty Highway 0
CountyLogan County
StateIllinois
Coordinates40.00607, -89.48406
Functional classRural Minor 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.3 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length189 ft (57.6 m)
Longest span80 ft (24.4 m)
Deck width31 ft (9.3 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic175 (2022)
Projected traffic315 by 2046
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ch 12S over TR 199A built?

It was built in 1982, making it 43 years old in 2025.

What condition is Ch 12S over TR 199A 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 December 2024.

How much traffic does Ch 12S over TR 199A carry?

About 175 vehicles per day (2022 count), of which roughly 17% are trucks.

How long is Ch 12S over TR 199A?

The structure is 189 ft (57.6 m) long with a longest span of 80 ft (24.4 m) and a deck 31 ft wide.

Who owns Ch 12S over TR 199A?

It is owned by the County Highway Agency.