US Bridges

FAI 80 over Miss R Ill 84 & RR

Fair

Rock Island County, Illinois · W of Rapids City · Structure no. 081001100000000

Built
1967
58 years old, rebuilt 1996
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
3,488 ft
16 main spans
Daily traffic
32,200
2023 count
Owner
State
State Highway Agency

About this bridge

FAI 80 over Miss R Ill 84 & RR is a steel stringer/multi-beam or girder carrying FAI 80 over Miss R Ill 84 & RR in Rock Island County, Illinois. It was built in 1967 and reconstructed in 1996, so it is 58 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 5 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 32,200 vehicles a day, roughly 34% of them trucks, projected to reach 33,027 by 2046. The structure is 3,488 ft (1,063.1 m) long and 67 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesFAI 80
CrossesMiss R Ill 84 & RR
LocationW of Rapids City
RouteInterstate 80
Coordinates41.57602, -90.36247
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.6 US tons
Inventory rating32.2 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans16 (+12 approach)
Design loadHS 20
Structure length3,488 ft (1,063.1 m)
Longest span370 ft (112.8 m)
Deck width67 ft (20.4 m)
Roadway width61 ft (18.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic32,200 (2023)
Projected traffic33,027 by 2046
Trucks34%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway, waterway and railroad
Detour if closed14.9 mi (24 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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was FAI 80 over Miss R Ill 84 & RR built?

It was built in 1967, making it 58 years old in 2025. It was reconstructed in 1996.

What condition is FAI 80 over Miss R Ill 84 & RR 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 October 2023.

How much traffic does FAI 80 over Miss R Ill 84 & RR carry?

About 32,200 vehicles per day (2023 count), of which roughly 34% are trucks.

How long is FAI 80 over Miss R Ill 84 & RR?

The structure is 3,488 ft (1,063.1 m) long with a longest span of 370 ft (112.8 m) and a deck 67 ft wide.

Who owns FAI 80 over Miss R Ill 84 & RR?

It is owned by the State Highway Agency.