US Bridges

Il 84 over BNSF RR

Fair

Carroll County, Illinois · .3 MI S IL64 Savanna · Structure no. 008004000000000

Built
1988
37 years old, rebuilt 2024
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
261 ft
4 main spans
Daily traffic
5,550
2023 count
Owner
State
State Highway Agency

About this bridge

Il 84 over BNSF RR is a prestressed concrete continuous stringer/multi-beam or girder carrying Il 84 over BNSF RR in Carroll County, Illinois. It was built in 1988 and reconstructed in 2024, so it is 37 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 5,550 vehicles a day, roughly 6% of them trucks, projected to reach 6,010 by 2046. The structure is 261 ft (79.5 m) long and 38 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

Location

Open in Google Maps
CarriesIl 84
CrossesBNSF RR
Location.3 MI S IL64 Savanna
RouteState Highway 84
CountyCarroll County
StateIllinois
Coordinates42.08488, -90.1313
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionOctober 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 rating79.7 US tons
Inventory rating47.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length261 ft (79.5 m)
Longest span73 ft (22.1 m)
Deck width38 ft (11.5 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,550 (2023)
Projected traffic6,010 by 2046
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed21.7 mi (35 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 1988, making it 37 years old in 2025. It was reconstructed in 2024.

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 October 2024.

How much traffic does Il 84 over BNSF RR carry?

About 5,550 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is Il 84 over BNSF RR?

The structure is 261 ft (79.5 m) long with a longest span of 73 ft (22.1 m) and a deck 38 ft wide.

Who owns Il 84 over BNSF RR?

It is owned by the State Highway Agency.