US Bridges

Il 94 (sb) over Slater Creek

Fair

Hancock County, Illinois · 1.1M N West Pt. Spur · Structure no. 034007400000000

Built
2002
23 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
109 ft
1 main span
Daily traffic
4,050
2023 count
Owner
State
State Highway Agency

About this bridge

Il 94 (sb) over Slater Creek is a steel stringer/multi-beam or girder carrying Il 94 (sb) over Slater Creek in Hancock County, Illinois. It was built in 2002, so it is 23 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 4,050 vehicles a day, roughly 17% of them trucks, projected to reach 1,515 by 2046. The structure is 109 ft (33.1 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIl 94 (sb)
CrossesSlater Creek
Location1.1M N West Pt. Spur
RouteState Highway 94
Coordinates40.27019, -91.12294
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating60 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length109 ft (33.1 m)
Longest span106 ft (32.3 m)
Deck width43 ft (13 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,050 (2023)
Projected traffic1,515 by 2046
Trucks17%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 94 (sb) over Slater Creek built?

It was built in 2002, making it 23 years old in 2025.

What condition is Il 94 (sb) over Slater 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 June 2023.

How much traffic does Il 94 (sb) over Slater Creek carry?

About 4,050 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is Il 94 (sb) over Slater Creek?

The structure is 109 ft (33.1 m) long with a longest span of 106 ft (32.3 m) and a deck 43 ft wide.

Who owns Il 94 (sb) over Slater Creek?

It is owned by the State Highway Agency.