US Bridges

TR 35 N 4592th over Little Indian CR

Fair

LaSalle County, Illinois · N 4592 RD E 2190 · Structure no. 050346200000000

Built
1980
45 years old
Condition
Fair
inspected July 2024
Type
Channel Beam
Concrete
Length
78 ft
3 main spans
Daily traffic
50
2016 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 35 N 4592th over Little Indian CR is a concrete channel beam carrying TR 35 N 4592th over Little Indian CR in LaSalle County, Illinois. It was built in 1980, so it is 45 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 50 vehicles a day, roughly 10% of them trucks, projected to reach 51 by 2046. The structure is 78 ft (23.8 m) long and 23 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesTR 35 N 4592th
CrossesLittle Indian CR
LocationN 4592 RD E 2190
RouteCounty Highway 0
CountyLaSalle County
StateIllinois
Coordinates41.60102, -88.75439
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating60.7 US tons
Inventory rating36.4 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length78 ft (23.8 m)
Longest span38 ft (11.6 m)
Deck width23 ft (6.9 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2016)
Projected traffic51 by 2046
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 TR 35 N 4592th over Little Indian CR built?

It was built in 1980, making it 45 years old in 2025.

What condition is TR 35 N 4592th over Little Indian 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 July 2024.

How much traffic does TR 35 N 4592th over Little Indian CR carry?

About 50 vehicles per day (2016 count), of which roughly 10% are trucks.

How long is TR 35 N 4592th over Little Indian CR?

The structure is 78 ft (23.8 m) long with a longest span of 38 ft (11.6 m) and a deck 23 ft wide.

Who owns TR 35 N 4592th over Little Indian CR?

It is owned by the Town or Township Highway Agency.