US Bridges

Il 40 FAP 646 over Hickory Creek

Good

Bureau County, Illinois · 3.5 Mi. N. of I-80 · Structure no. 006015600000000

Built
1993
32 years old
Condition
Good
inspected January 2022
Type
Stringer/Multi-beam or Girder
Steel
Length
74 ft
1 main span
Daily traffic
2,400
2023 count
Owner
State
State Highway Agency

About this bridge

Il 40 FAP 646 over Hickory Creek is a steel stringer/multi-beam or girder carrying Il 40 FAP 646 over Hickory Creek in Bureau 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 2,400 vehicles a day, roughly 16% of them trucks, projected to reach 3,081 by 2046. The structure is 74 ft (22.6 m) long and 43 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

CarriesIl 40 FAP 646
CrossesHickory Creek
Location3.5 Mi. N. of I-80
RouteState Highway 40
Coordinates41.43921, -89.68477
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2022
Inspection intervalevery 48 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 rating77.5 US tons
Inventory rating46.4 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length74 ft (22.6 m)
Longest span72 ft (21.8 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,400 (2023)
Projected traffic3,081 by 2046
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 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 FAP 646 over Hickory Creek built?

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

What condition is Il 40 FAP 646 over Hickory Creek 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 January 2022.

How much traffic does Il 40 FAP 646 over Hickory Creek carry?

About 2,400 vehicles per day (2023 count), of which roughly 16% are trucks.

How long is Il 40 FAP 646 over Hickory Creek?

The structure is 74 ft (22.6 m) long with a longest span of 72 ft (21.8 m) and a deck 43 ft wide.

Who owns Il 40 FAP 646 over Hickory Creek?

It is owned by the State Highway Agency.