US Bridges

US 20 E B over E Channel Rock Riv

Fair

Winnebago County, Illinois · .7 MI E of Ill 2 · Structure no. 101019700000000

Built
2014
11 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
437 ft
2 main spans
Daily traffic
32,000
2023 count
Owner
State
State Highway Agency

About this bridge

US 20 E B over E Channel Rock Riv is a steel continuous stringer/multi-beam or girder carrying US 20 E B over E Channel Rock Riv in Winnebago County, Illinois. It was built in 2014, so it is 11 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 32,000 vehicles a day, roughly 12% of them trucks, projected to reach 15,605 by 2046. The structure is 437 ft (133.2 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS 20 E B
CrossesE Channel Rock Riv
Location.7 MI E of Ill 2
RouteU.S. Route 20
CountyWinnebago County
StateIllinois
Coordinates42.21937, -89.09613
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.4 US tons
Inventory rating59 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length437 ft (133.2 m)
Longest span219 ft (66.6 m)
Deck width45 ft (13.8 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic32,000 (2023)
Projected traffic15,605 by 2046
Trucks12%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was US 20 E B over E Channel Rock Riv built?

It was built in 2014, making it 11 years old in 2025.

What condition is US 20 E B over E Channel Rock Riv in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in November 2023.

How much traffic does US 20 E B over E Channel Rock Riv carry?

About 32,000 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is US 20 E B over E Channel Rock Riv?

The structure is 437 ft (133.2 m) long with a longest span of 219 ft (66.6 m) and a deck 45 ft wide.

Who owns US 20 E B over E Channel Rock Riv?

It is owned by the State Highway Agency.