US Bridges

TR 12 over Trib Little Muddy

Good

Franklin County, Illinois · West Christopher · Structure no. 028326100000000

Built
1983
42 years old
Condition
Good
inspected June 2022
Type
Culvert
Concrete
Length
26 ft
2 main spans
Daily traffic
20
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 12 over Trib Little Muddy is a concrete culvert carrying TR 12 over Trib Little Muddy in Franklin County, Illinois. It was built in 1983, so it is 42 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 20 vehicles a day, roughly 10% of them trucks, projected to reach 25 by 2046. The structure is 26 ft (7.9 m) long and 26 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesTR 12
CrossesTrib Little Muddy
LocationWest Christopher
RouteCounty Highway 0
Coordinates37.95691, -89.13775
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionJune 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48.9 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span12 ft (3.7 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2024)
Projected traffic25 by 2046
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 Trib Little Muddy built?

It was built in 1983, making it 42 years old in 2025.

What condition is TR 12 over Trib Little Muddy in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2022.

How much traffic does TR 12 over Trib Little Muddy carry?

About 20 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is TR 12 over Trib Little Muddy?

The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m) and a deck 26 ft wide.

Who owns TR 12 over Trib Little Muddy?

It is owned by the Town or Township Highway Agency.