US Bridges

Il 4 over E Fork Silver Crk

Good

Madison County, Illinois · .71 MI N US 40 · Structure no. 060034400000000

Built
2017
8 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
242 ft
3 main spans
Daily traffic
7,400
2023 count
Owner
State
State Highway Agency

About this bridge

Il 4 over E Fork Silver Crk is a steel continuous stringer/multi-beam or girder carrying Il 4 over E Fork Silver Crk in Madison County, Illinois. It was built in 2017, so it is 8 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 7,400 vehicles a day, roughly 19% of them trucks, projected to reach 7,062 by 2046. The structure is 242 ft (73.8 m) long and 43 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

Location

Open in Google Maps
CarriesIl 4
CrossesE Fork Silver Crk
Location.71 MI N US 40
RouteState Highway 4
CountyMadison County
StateIllinois
Coordinates38.72476, -89.80112
Functional classRural Principal Arterial - Other

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 inspectionOctober 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating85.8 US tons
Inventory rating66 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length242 ft (73.8 m)
Longest span92 ft (28 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,400 (2023)
Projected traffic7,062 by 2046
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 km)
TollOn a free road
National Highway SystemYes

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 4 over E Fork Silver Crk built?

It was built in 2017, making it 8 years old in 2025.

What condition is Il 4 over E Fork 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 October 2023.

How much traffic does Il 4 over E Fork Silver Crk carry?

About 7,400 vehicles per day (2023 count), of which roughly 19% are trucks.

How long is Il 4 over E Fork Silver Crk?

The structure is 242 ft (73.8 m) long with a longest span of 92 ft (28 m) and a deck 43 ft wide.

Who owns Il 4 over E Fork Silver Crk?

It is owned by the State Highway Agency.