US Bridges

US 40 over East Fork of Silv.Ck

Good

Madison County, Illinois · 0.4MI West Ill 4 · Structure no. 060023000000000

Built
1985
40 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
209 ft
3 main spans
Daily traffic
8,450
2023 count
Owner
State
State Highway Agency

About this bridge

US 40 over East Fork of Silv.Ck is a steel continuous stringer/multi-beam or girder carrying US 40 over East Fork of Silv.Ck in Madison County, Illinois. It was built in 1985, so it is 40 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 8,450 vehicles a day, roughly 6% of them trucks, projected to reach 10,379 by 2046. The structure is 209 ft (63.7 m) long and 43 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesUS 40
CrossesEast Fork of Silv.Ck
Location0.4MI West Ill 4
RouteU.S. Route 40
Coordinates38.7161, -89.80839
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 protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 rating75.7 US tons
Inventory rating37.8 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length209 ft (63.7 m)
Longest span81 ft (24.7 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,450 (2023)
Projected traffic10,379 by 2046
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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 US 40 over East Fork of Silv.Ck built?

It was built in 1985, making it 40 years old in 2025.

What condition is US 40 over East Fork of Silv.Ck 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 2024.

How much traffic does US 40 over East Fork of Silv.Ck carry?

About 8,450 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is US 40 over East Fork of Silv.Ck?

The structure is 209 ft (63.7 m) long with a longest span of 81 ft (24.7 m) and a deck 43 ft wide.

Who owns US 40 over East Fork of Silv.Ck?

It is owned by the State Highway Agency.