US Bridges

Il 40 over Elkhorn Creek Trib.

Good

Carroll County, Illinois · 1.5 MI S Milledgevil · Structure no. 008201000000000

Built
1993
32 years old
Condition
Good
inspected March 2022
Type
Culvert
Concrete
Length
26 ft
2 main spans
Daily traffic
3,250
2023 count
Owner
State
State Highway Agency

About this bridge

Il 40 over Elkhorn Creek Trib. is a concrete culvert carrying Il 40 over Elkhorn Creek Trib. in Carroll County, Illinois. It was built in 1993, so it is 32 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 3,250 vehicles a day, roughly 6% of them trucks, projected to reach 2,121 by 2046. The structure is 26 ft (8 m) long. If it were closed, the detour would be 19.9 mi (32 km).

Location

Open in Google Maps
CarriesIl 40
CrossesElkhorn Creek Trib.
Location1.5 MI S Milledgevil
RouteState Highway 40
CountyCarroll County
StateIllinois
Coordinates41.93321, -89.76915
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating59 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length26 ft (8 m)
Longest span13 ft (4.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,250 (2023)
Projected traffic2,121 by 2046
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 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 Trib. built?

It was built in 1993, making it 32 years old in 2025.

What condition is Il 40 over Elkhorn Creek Trib. 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 March 2022.

How much traffic does Il 40 over Elkhorn Creek Trib. carry?

About 3,250 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is Il 40 over Elkhorn Creek Trib.?

The structure is 26 ft (8 m) long with a longest span of 13 ft (4.1 m).

Who owns Il 40 over Elkhorn Creek Trib.?

It is owned by the State Highway Agency.