US Bridges

FAS 269 (CH12 N46 over Fourmile Grove CR

Fair

LaSalle County, Illinois · N46th E750 · Structure no. 050348500000000

Built
1983
42 years old
Condition
Fair
inspected April 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
71 ft
1 main span
Daily traffic
375
2020 count
Owner
County
County Highway Agency

About this bridge

FAS 269 (CH12 N46 over Fourmile Grove CR is a prestressed concrete box beam or girders - multiple carrying FAS 269 (CH12 N46 over Fourmile Grove CR in LaSalle County, Illinois. It was built in 1983, so it is 42 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 375 vehicles a day, roughly 11% of them trucks, projected to reach 379 by 2046. The structure is 71 ft (21.6 m) long and 30 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesFAS 269 (CH12 N46
CrossesFourmile Grove CR
LocationN46th E750
RouteCounty Highway 0
CountyLaSalle County
StateIllinois
Coordinates41.59814, -89.02512
Functional classRural Major Collector

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length71 ft (21.6 m)
Longest span70 ft (21.3 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic375 (2020)
Projected traffic379 by 2046
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 FAS 269 (CH12 N46 over Fourmile Grove CR built?

It was built in 1983, making it 42 years old in 2025.

What condition is FAS 269 (CH12 N46 over Fourmile Grove CR 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 April 2023.

How much traffic does FAS 269 (CH12 N46 over Fourmile Grove CR carry?

About 375 vehicles per day (2020 count), of which roughly 11% are trucks.

How long is FAS 269 (CH12 N46 over Fourmile Grove CR?

The structure is 71 ft (21.6 m) long with a longest span of 70 ft (21.3 m) and a deck 30 ft wide.

Who owns FAS 269 (CH12 N46 over Fourmile Grove CR?

It is owned by the County Highway Agency.