US Bridges

FAI-57/RAMP 1579 over FAI-64 WB

Fair

Jefferson County, Illinois · NW Tri-Level Mt Vern · Structure no. 041006100000000

Built
1968
57 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
342 ft
3 main spans
Daily traffic
325
2023 count
Owner
State
State Highway Agency

About this bridge

FAI-57/RAMP 1579 over FAI-64 WB is a steel continuous stringer/multi-beam or girder carrying FAI-57/RAMP 1579 over FAI-64 WB in Jefferson County, Illinois. It was built in 1968, so it is 57 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 325 vehicles a day, roughly 34% of them trucks, projected to reach 354 by 2046. The structure is 342 ft (104.2 m) long and 34 ft wide. If it were closed, the detour would be 18 mi (29 km).

CarriesFAI-57/RAMP 1579
CrossesFAI-64 WB
LocationNW Tri-Level Mt Vern
Coordinates38.33656, -88.95611
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.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
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
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.1 US tons
Inventory rating34.3 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+2 approach)
Design loadHS 20 + Mod
Structure length342 ft (104.2 m)
Longest span121 ft (36.9 m)
Deck width34 ft (10.5 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic325 (2023)
Projected traffic354 by 2046
Trucks34%
Lanes on structure2
Traffic directionOne-way traffic
CarriesThird level (interchange)
CrossesHighway
Detour if closed18 mi (29 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 FAI-57/RAMP 1579 over FAI-64 WB built?

It was built in 1968, making it 57 years old in 2025.

What condition is FAI-57/RAMP 1579 over FAI-64 WB 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 March 2023.

How much traffic does FAI-57/RAMP 1579 over FAI-64 WB carry?

About 325 vehicles per day (2023 count), of which roughly 34% are trucks.

How long is FAI-57/RAMP 1579 over FAI-64 WB?

The structure is 342 ft (104.2 m) long with a longest span of 121 ft (36.9 m) and a deck 34 ft wide.

Who owns FAI-57/RAMP 1579 over FAI-64 WB?

It is owned by the State Highway Agency.