US Bridges

Ill 71 FAP 619 over I-39/US 51

Fair

LaSalle County, Illinois · 0.46 MI W of Il 251 · Structure no. 050020300000000

Built
1988
37 years old
Condition
Fair
inspected January 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
242 ft
3 main spans
Daily traffic
875
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 71 FAP 619 over I-39/US 51 is a steel continuous stringer/multi-beam or girder carrying Ill 71 FAP 619 over I-39/US 51 in LaSalle County, Illinois. It was built in 1988, 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 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 875 vehicles a day, roughly 13% of them trucks, projected to reach 1,010 by 2046. The structure is 242 ft (73.9 m) long and 69 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesIll 71 FAP 619
CrossesI-39/US 51
Location0.46 MI W of Il 251
RouteState Highway 71
Coordinates41.26497, -89.08106
Functional classUrban 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.6 US tons
Inventory rating40.7 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length242 ft (73.9 m)
Longest span178 ft (54.3 m)
Deck width69 ft (21.1 m)
Roadway width61 ft (18.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic875 (2023)
Projected traffic1,010 by 2046
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.9 mi (3 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ill 71 FAP 619 over I-39/US 51 built?

It was built in 1988, making it 37 years old in 2025.

What condition is Ill 71 FAP 619 over I-39/US 51 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 January 2023.

How much traffic does Ill 71 FAP 619 over I-39/US 51 carry?

About 875 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is Ill 71 FAP 619 over I-39/US 51?

The structure is 242 ft (73.9 m) long with a longest span of 178 ft (54.3 m) and a deck 69 ft wide.

Who owns Ill 71 FAP 619 over I-39/US 51?

It is owned by the State Highway Agency.