US Bridges

TR 185 over Dutch Creek

Fair

Union County, Illinois · 2.7M SW Ill 146 · Structure no. 091309000000000

Built
1964
61 years old
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
82 ft
1 main span
Daily traffic
75
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 185 over Dutch Creek is a steel stringer/multi-beam or girder carrying TR 185 over Dutch Creek in Union County, Illinois. It was built in 1964, so it is 61 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 75 vehicles a day, roughly 7% of them trucks, projected to reach 76 by 2046. The structure is 82 ft (25.1 m) long and 16 ft wide.

Location

Open in Google Maps
CarriesTR 185
CrossesDutch Creek
Location2.7M SW Ill 146
RouteCounty Highway 0
CountyUnion County
StateIllinois
Coordinates37.44188, -89.32075
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating53.6 US tons
Inventory rating32.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length82 ft (25.1 m)
Longest span79 ft (24 m)
Deck width16 ft (4.9 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2020)
Projected traffic76 by 2046
Trucks7%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 185 over Dutch Creek built?

It was built in 1964, making it 61 years old in 2025.

What condition is TR 185 over Dutch 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 January 2025.

How much traffic does TR 185 over Dutch Creek carry?

About 75 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is TR 185 over Dutch Creek?

The structure is 82 ft (25.1 m) long with a longest span of 79 ft (24 m) and a deck 16 ft wide.

Who owns TR 185 over Dutch Creek?

It is owned by the Town or Township Highway Agency.