US Bridges

TR 79 over Trib to Foreman CR

Good

Knox County, Illinois · E1/2-3-T12NR3E · Structure no. 048322800000000

Built
1980
45 years old
Condition
Good
inspected February 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
52 ft
1 main span
Daily traffic
10
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 79 over Trib to Foreman CR is a prestressed concrete box beam or girders - multiple carrying TR 79 over Trib to Foreman CR in Knox County, Illinois. It was built in 1980, so it is 45 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 10 vehicles a day, projected to reach 10 by 2046. The structure is 52 ft (15.8 m) long and 25 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesTR 79
CrossesTrib to Foreman CR
LocationE1/2-3-T12NR3E
RouteCounty Highway 0
Coordinates41.05538, -90.14063
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum 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

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length52 ft (15.8 m)
Longest span50 ft (15.2 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2022)
Projected traffic10 by 2046
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 79 over Trib to Foreman CR built?

It was built in 1980, making it 45 years old in 2025.

What condition is TR 79 over Trib to Foreman CR 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 February 2023.

How much traffic does TR 79 over Trib to Foreman CR carry?

About 10 vehicles per day (2022 count).

How long is TR 79 over Trib to Foreman CR?

The structure is 52 ft (15.8 m) long with a longest span of 50 ft (15.2 m) and a deck 25 ft wide.

Who owns TR 79 over Trib to Foreman CR?

It is owned by the Town or Township Highway Agency.