US Bridges

Il 5/IL 92 over Il 84

Good

Rock Island County, Illinois · Silvis Interchange · Structure no. 081016900000000

Built
2008
17 years old
Condition
Good
inspected January 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
141 ft
2 main spans
Daily traffic
14,700
2023 count
Owner
State
State Highway Agency

About this bridge

Il 5/IL 92 over Il 84 is a steel continuous stringer/multi-beam or girder carrying Il 5/IL 92 over Il 84 in Rock Island County, Illinois. It was built in 2008, so it is 17 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 14,700 vehicles a day, roughly 8% of them trucks, projected to reach 15,958 by 2046. The structure is 141 ft (42.9 m) long and 92 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesIl 5/IL 92
CrossesIl 84
LocationSilvis Interchange
RouteState Highway 5
CountyRock Island County
StateIllinois
Coordinates41.50836, -90.40083
Functional classUrban Other Principal 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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 2023
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 rating72.1 US tons
Inventory rating43.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length141 ft (42.9 m)
Longest span73 ft (22.4 m)
Deck width92 ft (27.9 m)
Roadway width89 ft (27.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,700 (2023)
Projected traffic15,958 by 2046
Trucks8%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed11.8 mi (19 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Il 5/IL 92 over Il 84 built?

It was built in 2008, making it 17 years old in 2025.

What condition is Il 5/IL 92 over Il 84 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 2023.

How much traffic does Il 5/IL 92 over Il 84 carry?

About 14,700 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Il 5/IL 92 over Il 84?

The structure is 141 ft (42.9 m) long with a longest span of 73 ft (22.4 m) and a deck 92 ft wide.

Who owns Il 5/IL 92 over Il 84?

It is owned by the State Highway Agency.