US Bridges

FAP 650 - Il 78 over Trib S Fk Apple Riv.

Fair

Jo Daviess County, Illinois · 4.4 Mi. N. US 20 · Structure no. 043004500000000

Built
1991
34 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
76 ft
2 main spans
Daily traffic
1,550
2023 count
Owner
State
State Highway Agency

About this bridge

FAP 650 - Il 78 over Trib S Fk Apple Riv. is a steel continuous stringer/multi-beam or girder carrying FAP 650 - Il 78 over Trib S Fk Apple Riv. in Jo Daviess County, Illinois. It was built in 1991, so it is 34 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 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 1,550 vehicles a day, roughly 25% of them trucks, projected to reach 1,465 by 2046. The structure is 76 ft (23.3 m) long and 35 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

Location

Open in Google Maps
CarriesFAP 650 - Il 78
CrossesTrib S Fk Apple Riv.
Location4.4 Mi. N. US 20
RouteState Highway 78
CountyJo Daviess County
StateIllinois
Coordinates42.42022, -89.9838
Functional classRural Minor Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.7 US tons
Inventory rating45.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length76 ft (23.3 m)
Longest span38 ft (11.7 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,550 (2023)
Projected traffic1,465 by 2046
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 km)
TollOn a free road
National Highway SystemNo

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 FAP 650 - Il 78 over Trib S Fk Apple Riv. built?

It was built in 1991, making it 34 years old in 2025.

What condition is FAP 650 - Il 78 over Trib S Fk Apple Riv. 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 November 2023.

How much traffic does FAP 650 - Il 78 over Trib S Fk Apple Riv. carry?

About 1,550 vehicles per day (2023 count), of which roughly 25% are trucks.

How long is FAP 650 - Il 78 over Trib S Fk Apple Riv.?

The structure is 76 ft (23.3 m) long with a longest span of 38 ft (11.7 m) and a deck 35 ft wide.

Who owns FAP 650 - Il 78 over Trib S Fk Apple Riv.?

It is owned by the State Highway Agency.