US Bridges

FAI 74 & 280 WB over Shaeffer Creek

Fair

Rock Island County, Illinois · 1 MI W Henry CO · Structure no. 081000800000000

Built
1959
66 years old, rebuilt 2022
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
90 ft
2 main spans
Daily traffic
7,500
2023 count
Owner
State
State Highway Agency

About this bridge

FAI 74 & 280 WB over Shaeffer Creek is a steel continuous stringer/multi-beam or girder carrying FAI 74 & 280 WB over Shaeffer Creek in Rock Island County, Illinois. It was built in 1959 and reconstructed in 2022, so it is 66 years old, older 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 7,500 vehicles a day, roughly 32% of them trucks, projected to reach 8,232 by 2046. The structure is 90 ft (27.3 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesFAI 74 & 280 WB
CrossesShaeffer Creek
Location1 MI W Henry CO
RouteInterstate 74
CountyRock Island County
StateIllinois
Coordinates41.45274, -90.4499
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74 US tons
Inventory rating56.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length90 ft (27.3 m)
Longest span43 ft (13.1 m)
Deck width45 ft (13.6 m)
Roadway width41 ft (12.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,500 (2023)
Projected traffic8,232 by 2046
Trucks32%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 FAI 74 & 280 WB over Shaeffer Creek built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 2022.

What condition is FAI 74 & 280 WB over Shaeffer 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 July 2024.

How much traffic does FAI 74 & 280 WB over Shaeffer Creek carry?

About 7,500 vehicles per day (2023 count), of which roughly 32% are trucks.

How long is FAI 74 & 280 WB over Shaeffer Creek?

The structure is 90 ft (27.3 m) long with a longest span of 43 ft (13.1 m) and a deck 45 ft wide.

Who owns FAI 74 & 280 WB over Shaeffer Creek?

It is owned by the State Highway Agency.