US Bridges

TR 102 over Trib to Darkies CR

Good

Coles County, Illinois · 2.5 MI S of Lerna · Structure no. 015341900000000

Built
2008
17 years old
Condition
Good
inspected January 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
65 ft
1 main span
Daily traffic
300
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 102 over Trib to Darkies CR is a prestressed concrete box beam or girders - multiple carrying TR 102 over Trib to Darkies CR in Coles County, Illinois. It was built in 2008, so it is 17 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 300 vehicles a day, roughly 3% of them trucks, projected to reach 253 by 2046. The structure is 65 ft (19.8 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesTR 102
CrossesTrib to Darkies CR
Location2.5 MI S of Lerna
RouteCounty Highway 0
Coordinates39.38224, -88.28577
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2025
Inspection intervalevery 24 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length65 ft (19.8 m)
Longest span63 ft (19.1 m)
Deck width28 ft (8.6 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2024)
Projected traffic253 by 2046
Trucks3%
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 102 over Trib to Darkies CR built?

It was built in 2008, making it 17 years old in 2025.

What condition is TR 102 over Trib to Darkies 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 January 2025.

How much traffic does TR 102 over Trib to Darkies CR carry?

About 300 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is TR 102 over Trib to Darkies CR?

The structure is 65 ft (19.8 m) long with a longest span of 63 ft (19.1 m) and a deck 28 ft wide.

Who owns TR 102 over Trib to Darkies CR?

It is owned by the Town or Township Highway Agency.