US Bridges

TR 203 over Coon Creek

Poor

De Witt County, Illinois · 3 MI SW of Clinton · Structure no. 020311300000000

Built
1900
125 years old, rebuilt 1977
Condition
Poor
inspected October 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
73 ft
3 main spans
Daily traffic
50
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 203 over Coon Creek is a prestressed concrete box beam or girders - multiple carrying TR 203 over Coon Creek in De Witt County, Illinois. It was built in 1900 and reconstructed in 1977, so it is 125 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 50 vehicles a day, roughly 40% of them trucks, projected to reach 152 by 2046. The structure is 73 ft (22.3 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesTR 203
CrossesCoon Creek
Location3 MI SW of Clinton
RouteCounty Highway 0
CountyDe Witt County
StateIllinois
Coordinates40.10922, -89.01258
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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 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 geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating64.6 US tons
Inventory rating38.6 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length73 ft (22.3 m)
Longest span25 ft (7.5 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2022)
Projected traffic152 by 2046
Trucks40%
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 203 over Coon Creek built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 1977.

What condition is TR 203 over Coon 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 October 2023.

How much traffic does TR 203 over Coon Creek carry?

About 50 vehicles per day (2022 count), of which roughly 40% are trucks.

How long is TR 203 over Coon Creek?

The structure is 73 ft (22.3 m) long with a longest span of 25 ft (7.5 m) and a deck 26 ft wide.

Who owns TR 203 over Coon Creek?

It is owned by the Town or Township Highway Agency.