US Bridges

FAI 74 NB over FAI 280

Fair

Rock Island County, Illinois · I74 Ovr I280S of RR · Structure no. 081016000000000

Built
2002
23 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
236 ft
2 main spans
Daily traffic
15,750
2023 count
Owner
State
State Highway Agency

About this bridge

FAI 74 NB over FAI 280 is a steel continuous stringer/multi-beam or girder carrying FAI 74 NB over FAI 280 in Rock Island 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 15,750 vehicles a day, roughly 7% of them trucks, projected to reach 14,696 by 2046. The structure is 236 ft (72 m) long and 52 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesFAI 74 NB
CrossesFAI 280
LocationI74 Ovr I280S of RR
RouteInterstate 74
CountyRock Island County
StateIllinois
Coordinates41.458, -90.49529
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating88.2 US tons
Inventory rating52.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length236 ft (72 m)
Longest span119 ft (36.2 m)
Deck width52 ft (16 m)
Roadway width49 ft (15 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,750 (2023)
Projected traffic14,696 by 2046
Trucks7%
Lanes on structure3
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate 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 NB over FAI 280 built?

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

What condition is FAI 74 NB over FAI 280 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 December 2024.

How much traffic does FAI 74 NB over FAI 280 carry?

About 15,750 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is FAI 74 NB over FAI 280?

The structure is 236 ft (72 m) long with a longest span of 119 ft (36.2 m) and a deck 52 ft wide.

Who owns FAI 74 NB over FAI 280?

It is owned by the State Highway Agency.