US Bridges

TR 7 B(cumb Co) over Darkies Creek

Good

Coles County, Illinois · 3 MI E of Trilla · Structure no. 015334900000000

Built
1993
32 years old
Condition
Good
inspected December 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
43 ft
1 main span
Daily traffic
150
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 7 B(cumb Co) over Darkies Creek is a prestressed concrete box beam or girders - multiple carrying TR 7 B(cumb Co) over Darkies Creek in Coles County, Illinois. It was built in 1993, so it is 32 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 150 vehicles a day, roughly 5% of them trucks, projected to reach 152 by 2046. The structure is 43 ft (13 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesTR 7 B(cumb Co)
CrossesDarkies Creek
Location3 MI E of Trilla
RouteCounty Highway 0
Coordinates39.37443, -88.29488
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal 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 length43 ft (13 m)
Longest span40 ft (12.3 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2021)
Projected traffic152 by 2046
Trucks5%
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 7 B(cumb Co) over Darkies Creek built?

It was built in 1993, making it 32 years old in 2025.

What condition is TR 7 B(cumb Co) over Darkies Creek 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 December 2023.

How much traffic does TR 7 B(cumb Co) over Darkies Creek carry?

About 150 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is TR 7 B(cumb Co) over Darkies Creek?

The structure is 43 ft (13 m) long with a longest span of 40 ft (12.3 m) and a deck 24 ft wide.

Who owns TR 7 B(cumb Co) over Darkies Creek?

It is owned by the Town or Township Highway Agency.