US Bridges

Il 140 over W Trib to Silver Crk

Good

Madison County, Illinois · 0.2MI E of Il 4 · Structure no. 060025800000000

Built
1992
33 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
64 ft
1 main span
Daily traffic
2,750
2023 count
Owner
State
State Highway Agency

About this bridge

Il 140 over W Trib to Silver Crk is a steel stringer/multi-beam or girder carrying Il 140 over W Trib to Silver Crk in Madison County, Illinois. It was built in 1992, so it is 33 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,750 vehicles a day, roughly 7% of them trucks, projected to reach 2,729 by 2046. The structure is 64 ft (19.4 m) long and 35 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

Location

Open in Google Maps
CarriesIl 140
CrossesW Trib to Silver Crk
Location0.2MI E of Il 4
RouteState Highway 140
CountyMadison County
StateIllinois
Coordinates38.88869, -89.79869
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating42.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length64 ft (19.4 m)
Longest span61 ft (18.6 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,750 (2023)
Projected traffic2,729 by 2046
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.7 mi (35 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 Il 140 over W Trib to Silver Crk built?

It was built in 1992, making it 33 years old in 2025.

What condition is Il 140 over W Trib to Silver Crk 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 April 2024.

How much traffic does Il 140 over W Trib to Silver Crk carry?

About 2,750 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is Il 140 over W Trib to Silver Crk?

The structure is 64 ft (19.4 m) long with a longest span of 61 ft (18.6 m) and a deck 35 ft wide.

Who owns Il 140 over W Trib to Silver Crk?

It is owned by the State Highway Agency.