US Bridges

TR 12 over Marrowbone Creek

Fair

Moultrie County, Illinois · 0.9 MI W Bethany · Structure no. 070461200000000

Built
1957
68 years old
Condition
Fair
inspected December 2024
Type
Slab
Concrete
Length
60 ft
2 main spans
Daily traffic
20
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 12 over Marrowbone Creek is a concrete slab carrying TR 12 over Marrowbone Creek in Moultrie County, Illinois. It was built in 1957, so it is 68 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 20 vehicles a day, projected to reach 21 by 2046. The structure is 60 ft (18.4 m) long and 23 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesTR 12
CrossesMarrowbone Creek
Location0.9 MI W Bethany
RouteCounty Highway 0
CountyMoultrie County
StateIllinois
Coordinates39.64452, -88.75563
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating52.9 US tons
Inventory rating31.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 15
Structure length60 ft (18.4 m)
Longest span29 ft (8.7 m)
Deck width23 ft (7.1 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2020)
Projected traffic21 by 2046
Trucks0%
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

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 Marrowbone Creek built?

It was built in 1957, making it 68 years old in 2025.

What condition is TR 12 over Marrowbone 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 December 2024.

How much traffic does TR 12 over Marrowbone Creek carry?

About 20 vehicles per day (2020 count).

How long is TR 12 over Marrowbone Creek?

The structure is 60 ft (18.4 m) long with a longest span of 29 ft (8.7 m) and a deck 23 ft wide.

Who owns TR 12 over Marrowbone Creek?

It is owned by the Town or Township Highway Agency.