US Bridges

FAI 74 NB over Rock River Side Rds

Fair

Rock Island County, Illinois · S Edge Moline · Structure no. 081016200000000

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

About this bridge

FAI 74 NB over Rock River Side Rds is a steel continuous stringer/multi-beam or girder carrying FAI 74 NB over Rock River Side Rds 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 888 ft (270.8 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesFAI 74 NB
CrossesRock River Side Rds
LocationS Edge Moline
RouteInterstate 74
CountyRock Island County
StateIllinois
Coordinates41.46184, -90.49527
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.
Substructure7 GoodSome minor problems.
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating88.2 US tons
Inventory rating52.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length888 ft (270.8 m)
Longest span195 ft (59.5 m)
Deck width43 ft (13 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,750 (2023)
Projected traffic14,696 by 2046
Trucks7%
Lanes on structure2
Traffic directionTwo-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 NB over Rock River Side Rds built?

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

What condition is FAI 74 NB over Rock River Side Rds 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 FAI 74 NB over Rock River Side Rds carry?

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

How long is FAI 74 NB over Rock River Side Rds?

The structure is 888 ft (270.8 m) long with a longest span of 195 ft (59.5 m) and a deck 43 ft wide.

Who owns FAI 74 NB over Rock River Side Rds?

It is owned by the State Highway Agency.