LaSalle County, IL

529 public highway bridges

LaSalle County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, LaSalle County, Illinois contains 529 public highway bridges. Roughly 37.1% are rated “Good,” 39.7% “Fair,” and 11.5% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

529

Total Bridges

37.1%

Good

39.7%

Fair

11.5%

Poor Condition

Condition Distribution

Good

37.1% (196)

Fair

39.7% (210)

Poor

11.5% (61)

All Bridges (529)

Sort:

TR 282

Over: COVEL CREEK

N 2501 E 1650, LaSalle, IL

Built 1965 Load: 27.2 t ADT: 500

TR-157

Over: BRUSH CREEK

N 39TH E 015, LaSalle, IL

Built 1971 Load: 27.9 t ADT: 75

FAS 174N/CH 41

Over: SUTPHENS RUN

E 1351,N 4500, LaSalle, IL

Built 1977 Load: 27.9 t ADT: 950

TR 441

Over: COVEL CREEK

N 22ND E 2290, LaSalle, IL

Built 1977 Load: 27.9 t ADT: 25

TR 276

Over: WOLF CREEK

E 16TH N 1525, LaSalle, IL

Built 1965 Load: 28.2 t ADT: 325

TR 4

Over: STREAM

E 30TH N 3125, LaSalle, IL

Built 1965 Load: 28.5 t ADT: 50

TR 427

Over: COVEL CREEK

N 23RD E 1825, LaSalle, IL

Built 1971 Load: 28.5 t ADT: 50

FAS 1176 CH 10

Over: FOURMILE GROVE

E 7TH,N 4725, LaSalle, IL

Built 1935 Load: 28.8 t ADT: 250

US 6

Over: INTERMITTENT STREAM

2.86 MI E OF ILL 71, LaSalle, IL

Built 1958 Load: 29.2 t ADT: 4,050

TR - 77

Over: LITTLE INDIAN CREEK

E 2175 N 4340, LaSalle, IL

Built 1968 Load: 29.2 t ADT: 75

TR 209

Over: TOMAHAWK CR

N 3550 E 615, LaSalle, IL

Built 1959 Load: 29.5 t ADT: 50

TR 244

Over: BUCK CREEK

E 14TH N 3395, LaSalle, IL

Built 1964 Load: 29.5 t ADT: 125

TR 127

Over: LITTLE VERMILLION CR

N 4050 E 660, LaSalle, IL

Built 1972 Load: 29.5 t ADT: 25

ILL 71 AND ILL 23

Over: IL RV & ACC RD

1 MILE SOUTH US 6, LaSalle, IL

Built 1981 Load: 30.1 t ADT: 22,900

TR-20A

Over: SPRING CREEK

E 1ST N 3410, LaSalle, IL

Built 1966 Load: 30.1 t ADT: 25

TR 0104A0

Over: STREAM

E 6TH N 1130, LaSalle, IL

Built 1963 Load: 30.1 t ADT: 100

PONTIAC ST

Over: BAILEY CREEK

PONTIAC ST OV BAI CR, LaSalle, IL

Built 1962 Load: 30.1 t ADT: 250

ILL 178

Over: VERMILION RIVER

3.7 MI S OF ILL 71, LaSalle, IL

Built 1934 Load: 30.5 t ADT: 1,650

TR 561

Over: CREEK

N 6TH E 750, LaSalle, IL

Built 1963 Load: 30.8 t ADT: 10

FAU 6009/N. 44TH R

Over: LITTLE VERMILIAN R.

N 44TH E 405, LaSalle, IL

Built 1971 Load: 31.1 t ADT: 25

CO RD 19

Over: LITTLE VERMILION

N 3973,E 650, LaSalle, IL

Built 1956 Load: 31.4 t ADT: 600

TR-22

Over: PIKE CREEK

E 1ST N 4550, LaSalle, IL

Built 1972 Load: 31.8 t ADT: 100

TR 158

Over: VERMILION CREEK

E 9TH N 4275, LaSalle, IL

Built 1973 Load: 32.1 t ADT: 50

ILL 23 FAP 68

Over: BUCK CREEK

2.36 MI S OF US 52, LaSalle, IL

Built 1970 Load: 32.4 t ADT: 3,350

FAS258 CH2

Over: INDIAN CREEK

E 2075 N 3510, LaSalle, IL

Built 1959 Load: 32.4 t ADT: 1,750

TR 285

Over: LITTLE VERMILLION R

N 30TH E 410, LaSalle, IL

Built 1965 Load: 32.4 t ADT: 625

CH 1

Over: CROOKED LEG CREEK

E 1553,N 4090, LaSalle, IL

Built 1976 Load: 32.4 t ADT: 775

CH 64

Over: VERMILION RIVER

N 15TH,E 1550, LaSalle, IL

Built 1976 Load: 32.4 t ADT: 1,150

TR 155A

Over: MISSION CREEK

N 39TH E 2860, LaSalle, IL

Built 1976 Load: 32.4 t ADT: 75

CH 40

Over: OTTER CREEK

N 13TH E2490, LaSalle, IL

Built 1979 Load: 32.4 t ADT: 600

TR 187 N 37TH

Over: SPRING CREEK

N 37TH E 125, LaSalle, IL

Built 1979 Load: 32.4 t ADT: 200

TR 210 E 1175TH

Over: BR INDIAN CREEK

E 1175TH N 4615, LaSalle, IL

Built 1980 Load: 32.4 t ADT: 50

TR 205 N 36TH

Over: TOMAHAWK CREEK

N36TH E680, LaSalle, IL

Built 1980 Load: 32.4 t ADT: 25

TR 535 N 14TH RD

Over: PRAIRIE CREEK

N14TH E 1925, LaSalle, IL

Built 1980 Load: 32.4 t ADT: 275

FAS 1273/CH 36

Over: DEADLY RUN

N2550 RD E2950, LaSalle, IL

Built 1980 Load: 32.4 t ADT: 1,050

TR 407 N 24TH

Over: COVEL CR

N 24TH E 1860, LaSalle, IL

Built 1981 Load: 32.4 t ADT: 25

TR 75 N 4325TH

Over: INDIAN CR

N 4325TH E 1525, LaSalle, IL

Built 1981 Load: 32.4 t ADT: 50

TR 571

Over: LONG POINT CR

N 1 ST RD E 850, LaSalle, IL

Built 1981 Load: 32.4 t ADT: 50

TR 018

Over: TRIB CEDAR CREEK

E1ST N2120, LaSalle, IL

Built 1982 Load: 32.4 t ADT: 75

TR 322 E 19TH

Over: BR COVEL CR

E 19TH N 2440, LaSalle, IL

Built 1982 Load: 32.4 t ADT: 25

TR-156 E 9TH

Over: PECUMSAUGAN CR

E 9TH N 3340, LaSalle, IL

Built 1982 Load: 32.4 t ADT: 100

TR 160

Over: SUTPHENS RUN

E 9TH N 4465, LaSalle, IL

Built 1983 Load: 32.4 t ADT: 25

TR 169A

Over: L VERMILION '

N 3850TH E 620, LaSalle, IL

Built 1983 Load: 32.4 t ADT: 50

TR 238 E 14TH

Over: INDIAN CREEK

E14TH N4440TH, LaSalle, IL

Built 1983 Load: 32.4 t ADT: 225

FAS 269 (CH12, N46

Over: FOURMILE GROVE CR

N46TH E750, LaSalle, IL

Built 1983 Load: 32.4 t ADT: 375

TR 3 N48TH

Over: TRIB INDIAN CREEK

N48TH E948, LaSalle, IL

Built 1983 Load: 32.4 t ADT: 25

TR 160 E 9TH

Over: BR INDIAN CR

E9TH,N4750TH, LaSalle, IL

Built 1983 Load: 32.4 t ADT: 25

TR 166 B

Over: LONG PT CR

E 10TH N 370 GROVLD, LaSalle, IL

Built 1984 Load: 32.4 t ADT: 25

TR 158

Over: TOMAHAWK CR OPHIR

E 9TH N 3705, LaSalle, IL

Built 1984 Load: 32.4 t ADT: 25

TR 354

Over: CREEK

E 21ST RD N 2450, LaSalle, IL

Built 1984 Load: 32.4 t ADT: 25

Read our methodology - how this data is sourced, computed, and verified.

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

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Compiled by PlainBridges, Independent data publisher

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.