US Bridges

Il 40 over Elkhorn Creek

Fair

Whiteside County, Illinois · 2 MI N Sterling · Structure no. 098011700000000

Built
2012
13 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
222 ft
2 main spans
Daily traffic
3,400
2021 count
Owner
State
State Highway Agency

About this bridge

Il 40 over Elkhorn Creek is a steel continuous stringer/multi-beam or girder carrying Il 40 over Elkhorn Creek in Whiteside County, Illinois. It was built in 2012, so it is 13 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 6 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 3,400 vehicles a day, roughly 8% of them trucks, projected to reach 3,434 by 2046. The structure is 222 ft (67.8 m) long and 43 ft wide. If it were closed, the detour would be 31.7 mi (51 km).

Location

Open in Google Maps
CarriesIl 40
CrossesElkhorn Creek
Location2 MI N Sterling
RouteState Highway 40
CountyWhiteside County
StateIllinois
Coordinates41.84143, -89.70348
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
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 evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83.2 US tons
Inventory rating49.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length222 ft (67.8 m)
Longest span110 ft (33.5 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,400 (2021)
Projected traffic3,434 by 2046
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.7 mi (51 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 40 over Elkhorn Creek built?

It was built in 2012, making it 13 years old in 2025.

What condition is Il 40 over Elkhorn Creek 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 Il 40 over Elkhorn Creek carry?

About 3,400 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is Il 40 over Elkhorn Creek?

The structure is 222 ft (67.8 m) long with a longest span of 110 ft (33.5 m) and a deck 43 ft wide.

Who owns Il 40 over Elkhorn Creek?

It is owned by the State Highway Agency.