US Bridges

Il 84 over BNSF RR

Fair

Whiteside County, Illinois · 2 MI S of Carroll CO · Structure no. 098009600000000

Built
1980
45 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
222 ft
3 main spans
Daily traffic
5,500
2023 count
Owner
State
State Highway Agency

About this bridge

Il 84 over BNSF RR is a steel continuous stringer/multi-beam or girder carrying Il 84 over BNSF RR in Whiteside County, Illinois. It was built in 1980, so it is 45 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 5,500 vehicles a day, roughly 13% of them trucks, projected to reach 5,858 by 2046. The structure is 222 ft (67.6 m) long and 43 ft wide. If it were closed, the detour would be 37.3 mi (60 km).

Location

Open in Google Maps
CarriesIl 84
CrossesBNSF RR
Location2 MI S of Carroll CO
RouteState Highway 84
CountyWhiteside County
StateIllinois
Coordinates41.9035, -90.11778
Functional classRural Principal Arterial - Other

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74 US tons
Inventory rating44.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length222 ft (67.6 m)
Longest span79 ft (24.1 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,500 (2023)
Projected traffic5,858 by 2046
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed37.3 mi (60 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Il 84 over BNSF RR built?

It was built in 1980, making it 45 years old in 2025.

What condition is Il 84 over BNSF 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 May 2023.

How much traffic does Il 84 over BNSF RR carry?

About 5,500 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is Il 84 over BNSF RR?

The structure is 222 ft (67.6 m) long with a longest span of 79 ft (24.1 m) and a deck 43 ft wide.

Who owns Il 84 over BNSF RR?

It is owned by the State Highway Agency.