US Bridges

Il 64 over Elkhorn Creek Trib.

Fair

Ogle County, Illinois · .4 MI E JCT US 52 · Structure no. 071008200000000

Built
1993
32 years old
Condition
Fair
inspected October 2023
Type
Slab
Concrete Continuous
Length
70 ft
3 main spans
Daily traffic
625
2021 count
Owner
State
State Highway Agency

About this bridge

Il 64 over Elkhorn Creek Trib. is a concrete continuous slab carrying Il 64 over Elkhorn Creek Trib. in Ogle 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 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 625 vehicles a day, roughly 16% of them trucks, projected to reach 650 by 2046. The structure is 70 ft (21.3 m) long and 35 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesIl 64
CrossesElkhorn Creek Trib.
Location.4 MI E JCT US 52
RouteState Highway 64
CountyOgle County
StateIllinois
Coordinates42.054, -89.67858
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73.5 US tons
Inventory rating44.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length70 ft (21.3 m)
Longest span25 ft (7.6 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic625 (2021)
Projected traffic650 by 2046
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 64 over Elkhorn Creek Trib. built?

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

What condition is Il 64 over Elkhorn Creek Trib. 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 October 2023.

How much traffic does Il 64 over Elkhorn Creek Trib. carry?

About 625 vehicles per day (2021 count), of which roughly 16% are trucks.

How long is Il 64 over Elkhorn Creek Trib.?

The structure is 70 ft (21.3 m) long with a longest span of 25 ft (7.6 m) and a deck 35 ft wide.

Who owns Il 64 over Elkhorn Creek Trib.?

It is owned by the State Highway Agency.