US Bridges

US 6 W of Marseill over Long Creek

Fair

LaSalle County, Illinois · 4.51 MI E of Ill 71 · Structure no. 050011000000000

Built
1958
67 years old, rebuilt 1989
Condition
Fair
inspected January 2024
Type
Slab
Concrete
Length
30 ft
1 main span
Daily traffic
3,850
2023 count
Owner
State
State Highway Agency

About this bridge

US 6 W of Marseill over Long Creek is a concrete slab carrying US 6 W of Marseill over Long Creek in LaSalle County, Illinois. It was built in 1958 and reconstructed in 1989, so it is 67 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 3,850 vehicles a day, roughly 7% of them trucks, projected to reach 4,091 by 2046. The structure is 30 ft (9.1 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS 6 W of Marseill
CrossesLong Creek
Location4.51 MI E of Ill 71
RouteU.S. Route 6
CountyLaSalle County
StateIllinois
Coordinates41.33509, -88.72154
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.1 US tons
Inventory rating47.2 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span29 ft (8.7 m)
Deck width45 ft (13.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,850 (2023)
Projected traffic4,091 by 2046
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 US 6 W of Marseill over Long Creek built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1989.

What condition is US 6 W of Marseill over Long Creek 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 2024.

How much traffic does US 6 W of Marseill over Long Creek carry?

About 3,850 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is US 6 W of Marseill over Long Creek?

The structure is 30 ft (9.1 m) long with a longest span of 29 ft (8.7 m) and a deck 45 ft wide.

Who owns US 6 W of Marseill over Long Creek?

It is owned by the State Highway Agency.