US Bridges

Ill 160 over Trib to Sugar Creek

Fair

Clinton County, Illinois · 0.36 MI S Mad CO LN · Structure no. 014200200000000

Built
1938
87 years old
Condition
Fair
inspected January 2025
Type
Culvert
Concrete Continuous
Length
38 ft
3 main spans
Daily traffic
5,200
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 160 over Trib to Sugar Creek is a concrete continuous culvert carrying Ill 160 over Trib to Sugar Creek in Clinton County, Illinois. It was built in 1938, so it is 87 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 5,200 vehicles a day, roughly 7% of them trucks, projected to reach 32,010 by 2046. The structure is 38 ft (11.7 m) long. If it were closed, the detour would be 29.8 mi (48 km).

CarriesIll 160
CrossesTrib to Sugar Creek
Location0.36 MI S Mad CO LN
RouteState Highway 160
Coordinates38.65048, -89.68786
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadH 15
Structure length38 ft (11.7 m)
Longest span11 ft (3.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,200 (2023)
Projected traffic32,010 by 2046
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Ill 160 over Trib to Sugar Creek built?

It was built in 1938, making it 87 years old in 2025.

What condition is Ill 160 over Trib to Sugar 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 Ill 160 over Trib to Sugar Creek carry?

About 5,200 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is Ill 160 over Trib to Sugar Creek?

The structure is 38 ft (11.7 m) long with a longest span of 11 ft (3.5 m).

Who owns Ill 160 over Trib to Sugar Creek?

It is owned by the State Highway Agency.