US Bridges

TR 12 over Indian Creek

Fair

Cass County, Illinois · .44 MI N TR 147 · Structure no. 009340900000000

Built
1979
46 years old
Condition
Fair
inspected January 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
175 ft
3 main spans
Daily traffic
75
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 12 over Indian Creek is a prestressed concrete box beam or girders - multiple carrying TR 12 over Indian Creek in Cass County, Illinois. It was built in 1979, so it is 46 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 75 vehicles a day, projected to reach 76 by 2046. The structure is 175 ft (53.3 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesTR 12
CrossesIndian Creek
Location.44 MI N TR 147
RouteCounty Highway 0
CountyCass County
StateIllinois
Coordinates39.90204, -90.46798
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
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.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2023
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 rating48.9 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20 + Mod
Structure length175 ft (53.3 m)
Longest span81 ft (24.7 m)
Deck width28 ft (8.4 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2023)
Projected traffic76 by 2046
Trucks0%
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

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 TR 12 over Indian Creek built?

It was built in 1979, making it 46 years old in 2025.

What condition is TR 12 over Indian 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 2023.

How much traffic does TR 12 over Indian Creek carry?

About 75 vehicles per day (2023 count).

How long is TR 12 over Indian Creek?

The structure is 175 ft (53.3 m) long with a longest span of 81 ft (24.7 m) and a deck 28 ft wide.

Who owns TR 12 over Indian Creek?

It is owned by the Town or Township Highway Agency.