US Bridges

Il 104 over Fishhook Creek

Good

Adams County, Illinois · 1.6 MI W Pike CO Lin · Structure no. 001050400000000

Built
2004
21 years old
Condition
Good
inspected November 2022
Type
Frame
Concrete
Length
37 ft
1 main span
Daily traffic
775
2023 count
Owner
State
State Highway Agency

About this bridge

Il 104 over Fishhook Creek is a concrete frame carrying Il 104 over Fishhook Creek in Adams County, Illinois. It was built in 2004, so it is 21 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 775 vehicles a day, roughly 18% of them trucks, projected to reach 808 by 2046. The structure is 37 ft (11.2 m) long and 40 ft wide. If it were closed, the detour would be 18 mi (29 km).

CarriesIl 104
CrossesFishhook Creek
Location1.6 MI W Pike CO Lin
RouteState Highway 104
Coordinates39.8194, -90.94482
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
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating107.1 US tons
Inventory rating64.6 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length37 ft (11.2 m)
Longest span35 ft (10.6 m)
Deck width40 ft (12.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic775 (2023)
Projected traffic808 by 2046
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 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 104 over Fishhook Creek built?

It was built in 2004, making it 21 years old in 2025.

What condition is Il 104 over Fishhook 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 November 2022.

How much traffic does Il 104 over Fishhook Creek carry?

About 775 vehicles per day (2023 count), of which roughly 18% are trucks.

How long is Il 104 over Fishhook Creek?

The structure is 37 ft (11.2 m) long with a longest span of 35 ft (10.6 m) and a deck 40 ft wide.

Who owns Il 104 over Fishhook Creek?

It is owned by the State Highway Agency.