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 352 E 21ST

Over: INDIAN CREEK

E 21ST N 4695, LaSalle, IL

Built 1979 Load: 33.7 t ADT: 25

TR 441

Over: TRIB COVEL CR

N 22ND E 1820, LaSalle, IL

Built 1967 Load: 34.7 t ADT: 75

TR 68A

Over: BAILEY CREEK

E 4TH N 1950, LaSalle, IL

Built 1981 Load: 34.7 t ADT: 75

CH 44

Over: LONG POINT CREEK

4.10 MI S OF ILL 17, LaSalle, IL

Built 1984 Load: 35.6 t ADT: 1,300

TR 416-A

Over: BRUMBACK CREEK

E 25TH N 3400, LaSalle, IL

Built 1964 Load: 35.6 t ADT: 200

E 8TH TR 142B

Over: LONG POINT CREEK

E8TH N010, LaSalle, IL

Built 1980 Load: 35.6 t ADT: 25

I-39/US 51

Over: CONVEYOR BELT/PVT RD

0.43 MI S OF US 6, LaSalle, IL

Built 1985 Load: 36.0 t ADT: 19,400

CO RD 42

Over: BUCK CREEK

E 15TH,N 3400, LaSalle, IL

Built 1934 Load: 36.0 t ADT: 450

CH 42-TERRA COTTA

Over: STREAM

2912 E15, LaSalle, IL

Built 1994 Load: 36.0 t ADT: 375

TR 97

Over: LITTLE INDIAN CR

N 4275 E 2190, LaSalle, IL

Built 1973 Load: 36.3 t ADT: 75

TR 354

Over: COUEL CREEK

E 21ST N 2050, LaSalle, IL

Built 1970 Load: 36.3 t ADT: 25

US 6

Over: GUM CREEK

6.08 MI E OF ILL 71, LaSalle, IL

Built 1926 Load: 36.6 t ADT: 2,450

I-80 WB

Over: FOX RIVER

2.5 M E OF ILL 23, LaSalle, IL

Built 1996 Load: 36.6 t ADT: 13,700

I-80 EB

Over: FOX RIVER

2.5 MI E OF IL 23, LaSalle, IL

Built 1995 Load: 36.6 t ADT: 13,700

TR 332 B

Over: WOLF CREEK

E 20TH N 1810, LaSalle, IL

Built 1969 Load: 36.6 t ADT: 25

TR-187

Over: SPRING CREEK

N 37TH E 160, LaSalle, IL

Built 1970 Load: 36.9 t ADT: 200

FAS 256

Over: LITTLE VERMILLION

N42ND E700TH, LaSalle, IL

Built 1972 Load: 37.3 t ADT: 150

FAS 1279

Over: BAILEY CREEK

N 2101,E 600, LaSalle, IL

Built 1969 Load: 37.3 t ADT: 650

TR-49

Over: SUTPHENS RUN

N 45TH E 890, LaSalle, IL

Built 1930 Load: 37.3 t ADT: 25

TR18

Over: CEDAR CR

E 1ST N 2070, LaSalle, IL

Built 1978 Load: 37.3 t ADT: 75

E. 19TH RD,FAU 616

Over: PRAIRIE CREEK

E 19TH N 1410, LaSalle, IL

Built 1935 Load: 37.6 t ADT: 450

TR 334

Over: INDIAN CREEK

N 40TH E 2005, LaSalle, IL

Built 1916 Load: 37.9 t ADT: 200

I-39 SB/US 51 SB

Over: LITTLE VERMILION R.

1.3 MI N.OF US 52, LaSalle, IL

Built 1979 Load: 38.2 t ADT: 9,350

I-39 NB/US 51 NB

Over: LITTLE VERMILION R.

1.3 MI N OF US 52, LaSalle, IL

Built 1979 Load: 38.2 t ADT: 9,350

TR 152

Over: LONG POINT CR

E 9TH N 275, LaSalle, IL

Built 1932 Load: 38.2 t ADT: 25

ILL 23 FAP 68

Over: INDIAN CR

2.63 MI N OF US 52, LaSalle, IL

Built 1972 Load: 38.6 t ADT: 1,700

TR 334

Over: INDIAN CREEK

E 20TH N 3680, LaSalle, IL

Built 1920 Load: 38.9 t ADT: 475

TR 356

Over: STREAM

E 2150TH N 2940, LaSalle, IL

Built 1939 Load: 38.9 t ADT: 50

TR 317

Over: CRI RR & IM CANAL

N.2755 E.1340, LaSalle, IL

Built 1978 Load: 38.9 t ADT: 600

FAI-80 EB

Over: PECUMSAUGAN CRK

5.3 MI E JCT IL 251, LaSalle, IL

Built 1961 Load: 39.2 t ADT: 15,350

FAI-80 WB

Over: PECUMSAUGAN CRK

5.3 MI E OF IL 251, LaSalle, IL

Built 1961 Load: 39.2 t ADT: 15,350

ILL 178

Over: CLARK RUN

1.11 MI S OF US 6, LaSalle, IL

Built 1976 Load: 39.2 t ADT: 4,150

US 52 FAP 607

Over: UNKNOWN STREAM

1.8 MI W OF IL 71, LaSalle, IL

Built 1931 Load: 39.2 t ADT: 1,850

TR-20-A

Over: SPRING CREEK

E 1ST N 3630, LaSalle, IL

Built 1930 Load: 39.2 t ADT: 100

TR 255

Over: L VERMILLION R

N 3179TH E 340, LaSalle, IL

Built 1928 Load: 39.2 t ADT: 100

FAS 260 CH 13

Over: LITTLE VERMILION RV

E4TH, N4051, LaSalle, IL

Built 1987 Load: 39.2 t ADT: 650

IL 23 NB IN STREAT

Over: INTER STREAM

14.30 MI S OF ILL 71, LaSalle, IL

Built 1965 Load: 39.5 t ADT: 8,000

ILL 23 FAP 68

Over: OTTER CR

2.8 MI N. OF ILL 18, LaSalle, IL

Built 1974 Load: 39.5 t ADT: 6,300

TR 322A

Over: OTTER CREEK

E 19TH N 1500, LaSalle, IL

Built 1934 Load: 39.9 t ADT: 275

FAU6046 CHAMPLAIN

Over: GOOSE CREEK

0.20 MI N OF US 6, LaSalle, IL

Built 1933 Load: 40.5 t ADT: 3,150

SHERIDAN ROAD

Over: MISSION CREEK

0.6 MI N OF US 52, LaSalle, IL

Built 1930 Load: 40.5 t ADT: 1,600

ILL 351 FAP 619

Over: LONE STAR CEMENT RR

2.55 MI S OF US 6, LaSalle, IL

Built 1995 Load: 40.8 t ADT: 3,400

CO RD 43

Over: TOMAHAWK CREEK

E 8TH,N 3740, LaSalle, IL

Built 1933 Load: 41.5 t ADT: 500

US 6

Over: PECUMSAGAN CR

5.0 MI E OF ILL 251, LaSalle, IL

Built 1954 Load: 41.8 t ADT: 7,150

I-39/US 51 SB

Over: BAILEY CREEK

0.49 MI S OF CH 54, LaSalle, IL

Built 1989 Load: 42.1 t ADT: 9,700

I-39/US 51 NB

Over: BAILEY CREEK

0.49 MI S OF CH 54, LaSalle, IL

Built 1989 Load: 42.1 t ADT: 9,700

I-39/US 51 SB

Over: Norfolk & Southern RR

1.48 MI N OF ILL 18, LaSalle, IL

Built 1988 Load: 42.4 t ADT: 9,700

I-39/US 51 NB

Over: Norfolk & Southern RR

1.48 MI N OF ILL 18, LaSalle, IL

Built 1988 Load: 42.4 t ADT: 9,700

US 6 W OF MARSEILL

Over: LONG CREEK

4.51 MI E OF ILL 71, LaSalle, IL

Built 1958 Load: 42.8 t ADT: 3,850

ILL 18 WB

Over: VERMILION RIVER

0.10 MI W OF ILL 23, LaSalle, IL

Built 1988 Load: 42.8 t ADT: 4,200

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

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