US Bridges

TR 85 over Branch of Big Creek

Poor

Hardin County, Illinois · 2.5 MI N Etown · Structure no. 035500800000000

Built
1968
57 years old
Condition
Poor
inspected September 2023
Type
Culvert
Concrete
Length
63 ft
3 main spans
Daily traffic
25
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 85 over Branch of Big Creek is a concrete culvert carrying TR 85 over Branch of Big Creek in Hardin County, Illinois. It was built in 1968, so it is 57 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 25 vehicles a day, roughly 28% of them trucks, projected to reach 25 by 2046. The structure is 63 ft (19.1 m) long and 21 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesTR 85
CrossesBranch of Big Creek
Location2.5 MI N Etown
RouteCounty Highway 0
CountyHardin County
StateIllinois
Coordinates37.49623, -88.35575
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length63 ft (19.1 m)
Longest span19 ft (5.7 m)
Deck width21 ft (6.5 m)
Roadway width21 ft (6.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2023)
Projected traffic25 by 2046
Trucks28%
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 85 over Branch of Big Creek built?

It was built in 1968, making it 57 years old in 2025.

What condition is TR 85 over Branch of Big Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2023.

How much traffic does TR 85 over Branch of Big Creek carry?

About 25 vehicles per day (2023 count), of which roughly 28% are trucks.

How long is TR 85 over Branch of Big Creek?

The structure is 63 ft (19.1 m) long with a longest span of 19 ft (5.7 m) and a deck 21 ft wide.

Who owns TR 85 over Branch of Big Creek?

It is owned by the Town or Township Highway Agency.