US Bridges

Ill 160 over US 50

Good

Clinton County, Illinois · N Side of Trenton · Structure no. 014006500000000

Built
1980
45 years old
Condition
Good
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
185 ft
2 main spans
Daily traffic
5,000
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 160 over US 50 is a steel continuous stringer/multi-beam or girder carrying Ill 160 over US 50 in Clinton County, Illinois. It was built in 1980, so it is 45 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 5,000 vehicles a day, roughly 7% of them trucks, projected to reach 5,775 by 2046. The structure is 185 ft (56.5 m) long and 68 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

CarriesIll 160
CrossesUS 50
LocationN Side of Trenton
RouteState Highway 160
Coordinates38.61284, -89.68712
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating87.5 US tons
Inventory rating41.1 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length185 ft (56.5 m)
Longest span92 ft (28 m)
Deck width68 ft (20.7 m)
Roadway width67 ft (20.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,000 (2023)
Projected traffic5,775 by 2046
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
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 US 50 built?

It was built in 1980, making it 45 years old in 2025.

What condition is Ill 160 over US 50 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2025.

How much traffic does Ill 160 over US 50 carry?

About 5,000 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is Ill 160 over US 50?

The structure is 185 ft (56.5 m) long with a longest span of 92 ft (28 m) and a deck 68 ft wide.

Who owns Ill 160 over US 50?

It is owned by the State Highway Agency.