US Bridges

TR 85 (TH-C69) over Creek

Fair

Marshall County, Illinois · T12N-R8E-4PM Sec 26 · Structure no. 062511900000000

Built
1970
55 years old
Condition
Fair
inspected August 2023
Type
Channel Beam
Concrete
Length
65 ft
2 main spans
Daily traffic
50
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 85 (TH-C69) over Creek is a concrete channel beam carrying TR 85 (TH-C69) over Creek in Marshall County, Illinois. It was built in 1970, so it is 55 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 50 vehicles a day, roughly 40% of them trucks, projected to reach 51 by 2046. The structure is 65 ft (19.8 m) long and 24 ft wide.

CarriesTR 85 (TH-C69)
CrossesCreek
LocationT12N-R8E-4PM Sec 26
RouteCounty Highway 0
Coordinates41.0027, -89.54759
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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.7 US tons
Inventory rating27.9 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadHS 15
Structure length65 ft (19.8 m)
Longest span31 ft (9.4 m)
Deck width24 ft (7.3 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2024)
Projected traffic51 by 2046
Trucks40%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 85 (TH-C69) over Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is TR 85 (TH-C69) over 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 August 2023.

How much traffic does TR 85 (TH-C69) over Creek carry?

About 50 vehicles per day (2024 count), of which roughly 40% are trucks.

How long is TR 85 (TH-C69) over Creek?

The structure is 65 ft (19.8 m) long with a longest span of 31 ft (9.4 m) and a deck 24 ft wide.

Who owns TR 85 (TH-C69) over Creek?

It is owned by the Town or Township Highway Agency.