US Bridges

Hinckley Road over W Branch Big Rock CR

Good

Kane County, Illinois · 0.1 MI E. Jericho RD · Structure no. 045310400000000

Built
1975
50 years old, rebuilt 2012
Condition
Good
inspected April 2022
Type
Slab
Concrete Continuous
Length
70 ft
2 main spans
Daily traffic
200
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Hinckley Road over W Branch Big Rock CR is a concrete continuous slab carrying Hinckley Road over W Branch Big Rock CR in Kane County, Illinois. It was built in 1975 and reconstructed in 2012, so it is 50 years old, older 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 200 vehicles a day, roughly 13% of them trucks, projected to reach 427 by 2046. The structure is 70 ft (21.2 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesHinckley Road
CrossesW Branch Big Rock CR
Location0.1 MI E. Jericho RD
RouteCounty Highway 0
CountyKane County
StateIllinois
Coordinates41.76434, -88.58944
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than 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 rating52.1 US tons
Inventory rating40.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length70 ft (21.2 m)
Longest span34 ft (10.3 m)
Deck width27 ft (8.2 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2023)
Projected traffic427 by 2046
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 Hinckley Road over W Branch Big Rock CR built?

It was built in 1975, making it 50 years old in 2025. It was reconstructed in 2012.

What condition is Hinckley Road over W Branch Big Rock CR 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 April 2022.

How much traffic does Hinckley Road over W Branch Big Rock CR carry?

About 200 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is Hinckley Road over W Branch Big Rock CR?

The structure is 70 ft (21.2 m) long with a longest span of 34 ft (10.3 m) and a deck 27 ft wide.

Who owns Hinckley Road over W Branch Big Rock CR?

It is owned by the Town or Township Highway Agency.