US Bridges

Il 82 over Hillery Creek

Fair

Henry County, Illinois · 3.2 MI S Cambridge · Structure no. 037201700000000

Built
1994
31 years old
Condition
Fair
inspected March 2024
Type
Culvert
Concrete
Length
37 ft
3 main spans
Daily traffic
750
2023 count
Owner
State
State Highway Agency

About this bridge

Il 82 over Hillery Creek is a concrete culvert carrying Il 82 over Hillery Creek in Henry County, Illinois. It was built in 1994, so it is 31 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 750 vehicles a day, roughly 16% of them trucks, projected to reach 729 by 2046. The structure is 37 ft (11.2 m) long and 45 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

Location

Open in Google Maps
CarriesIl 82
CrossesHillery Creek
Location3.2 MI S Cambridge
RouteState Highway 82
CountyHenry County
StateIllinois
Coordinates41.24883, -90.18505
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.4 US tons
Inventory rating36.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20 + Mod
Structure length37 ft (11.2 m)
Longest span12 ft (3.7 m)
Deck width45 ft (13.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic750 (2023)
Projected traffic729 by 2046
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 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 82 over Hillery Creek built?

It was built in 1994, making it 31 years old in 2025.

What condition is Il 82 over Hillery 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 March 2024.

How much traffic does Il 82 over Hillery Creek carry?

About 750 vehicles per day (2023 count), of which roughly 16% are trucks.

How long is Il 82 over Hillery Creek?

The structure is 37 ft (11.2 m) long with a longest span of 12 ft (3.7 m) and a deck 45 ft wide.

Who owns Il 82 over Hillery Creek?

It is owned by the State Highway Agency.