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)

TR 324

Fair

Over: CREEK

E 1951ST N 3290, LaSalle, IL

Built 1930 Load: 43.1 t ADT: 50

MS 6490 IN MENDOTA

Fair

Over: L. VERMILLION CR

E 4TH N 4345, LaSalle, IL

Built 1965 Load: 43.7 t ADT: 225

US 34 FAP 587

Fair

Over: SUTPHENS RUN

8.71 MI E OF ILL 251, LaSalle, IL

Built 1984 Load: 45.4 t ADT: 1,800

IL 23 FAP 68

Fair

Over: BUCK CREEK

3.0 MI S OF US 52, LaSalle, IL

Built 2012 Load: 45.4 t ADT: 3,350

ILL 351/FAP619

Fair

Over: IL RIVER

1.0 MI. S OF US 6, LaSalle, IL

Built 2003 Load: 46.0 t ADT: 5,250

ILL 71

Fair

Over: COVEL CR

7.38 MI E OF ILL 178, LaSalle, IL

Built 1981 Load: 46.3 t ADT: 1,650

US 6 FAP 623

Fair

Over: LITTLE VERMILION R

2.15 MI E OF IL 251, LaSalle, IL

Built 1966 Load: 47.3 t ADT: 9,050

ILL 351 FAP 619

Fair

Over: LONE STAR CEMENT RR

2.0 MI S OF US 6, LaSalle, IL

Built 1939 Load: 48.3 t ADT: 4,250

US RT 6

Fair

Over: WALBRIDGE CREEK

3.63 MI E OF ILL 71, LaSalle, IL

Built 1958 Load: 50.9 t ADT: 3,850

TR 322A

Fair

Over: WOLF CR

E 19TH N 1690, LaSalle, IL

Built 1954 Load: 53.1 t ADT: 275

I-39/US 51 SB

Fair

Over: SANDY CREEK

1.23 MI N OF ILL 18, LaSalle, IL

Built 1988 Load: 54.1 t ADT: 9,700

I-39/US 51 NB

Fair

Over: SANDY CREEK

1.22 MI N OF ILL 18, LaSalle, IL

Built 1988 Load: 54.1 t ADT: 9,700

FAI-80 EB

Fair

Over: B.N. RR

2.0 MI E OF ILL 23, LaSalle, IL

Built 1959 Load: 57.0 t ADT: 13,700

FAI-80 WB

Fair

Over: B.N. RR

2.0 MI E OF ILL 23, LaSalle, IL

Built 1959 Load: 57.0 t ADT: 13,700

CAMPGROUND ENTRANC

Fair

Over: PERSON CREEK

ILLINI PARK RD WEST, LaSalle, IL

Built 1995 Load: 57.3 t ADT: 325

CO RD 55

Fair

Over: PERSON CREEK

N 2653,E 2325, LaSalle, IL

Built 1934 Load: 57.7 t ADT: 1,300

TR 205

Fair

Over: BUCK CREEK

N 36TH E 1415, LaSalle, IL

Built 1934 Load: 64.2 t ADT: 50

FAI 39,US 51

Fair

Over: STREAM

1.5 MI S OF US 34, LaSalle, IL

Built 1978 Load: 79.7 t ADT: 18,700

I-39

Fair

Over: SE Half Conveyor B

0.05 M S of US 6, LaSalle, IL

Built 1961 Load: 89.1 t ADT: 19,400

FAS2256 CH19

Fair

Over: DRAINAGE DITCH

N 39TH,E 850, LaSalle, IL

Built 1964 Load: 89.1 t ADT: 275

OR 11

Fair

Over: PERSON CREEK

ILLINI PARK RD WEST, LaSalle, IL

Built 1984 Load: 89.1 t ADT: 325

ILL 71

Fair

Over: STREAM

1.8 MI S OF US 52, LaSalle, IL

Built 1942 Load: 97.2 t ADT: 5,250

TR 454 A

Good

Over: Trib Waupecan Creek

E 28th, N 1772, LaSalle, IL

Built 1930 Load: 24.3 t ADT: 20

TR 137

Good

Over: Spring Creek

0.5 Mi W. of US 52, LaSalle, IL

Built 1930 Load: 24.3 t ADT: 150

TR-48

Good

Over: BAILEY CREEK

E 3RD N 1840, LaSalle, IL

Built 1968 Load: 25.3 t ADT: 150

TR-49

Good

Over: L. VERMILLION CR.

N 45TH E 480, LaSalle, IL

Built 1953 Load: 25.9 t ADT: 100

US 52 FAP 607

Good

Over: INDIAN CREEK

2.12 MI E OF ILL 23, LaSalle, IL

Built 1988 Load: 29.2 t ADT: 1,500

US 52

Good

Over: BUCK CREEK

12.22 MI E OF IL 251, LaSalle, IL

Built 1997 Load: 29.5 t ADT: 1,200

FAS268 B/CH15

Good

Over: PERSON CREEK

E 22ND,N 2600, LaSalle, IL

Built 1955 Load: 29.5 t ADT: 900

TOW PATH ROAD

Good

Over: CLARKS RUN

0.6 MI. E ILL 178, LaSalle, IL

Built 1967 Load: 31.8 t ADT: 25

TR 310

Good

Over: BR COVEL CREEK

E 18TH N 2330, LaSalle, IL

Built 1930 Load: 32.1 t ADT: 100

IL 23 SB IN STREAT

Good

Over: PRAIRIE CREEK

14.30 MI S OF ILL 71, LaSalle, IL

Built 1965 Load: 32.4 t ADT: 7,700

IL 71

Good

Over: INTER STREAM

.27 MILE N US 6, LaSalle, IL

Built 1999 Load: 32.4 t ADT: 7,400

IL 178 FAS 1279

Good

Over: CLARK RUN

0.92 MI S OF US 6, LaSalle, IL

Built 2007 Load: 32.4 t ADT: 3,550

I-80 EB & WB

Good

Over: CLARK RUN CREEK

1.8 MI E JC I 80 178, LaSalle, IL

Built 2004 Load: 32.4 t ADT: 29,300

IL 178 FAS 1279

Good

Over: CREEK

2.25 MI S OF IL 71, LaSalle, IL

Built 2007 Load: 32.4 t ADT: 2,750

IL 178 FAS 1279

Good

Over: STREAM

0.60 MI S OF IL 71, LaSalle, IL

Built 2007 Load: 32.4 t ADT: 2,750

IL 71 FAP 311

Good

Over: INTERM. STREAM

2.57 MI N OF I-80, LaSalle, IL

Built 2008 Load: 32.4 t ADT: 5,600

IL 17 FAP 649

Good

Over: S BR MOON CREEK

0.8 MI E/OLD IL 179, LaSalle, IL

Built 2009 Load: 32.4 t ADT: 900

IL 71/FAP 619

Good

Over: UNNAMED TRIB.VERM RV

0.40 MI NE IL 251, LaSalle, IL

Built 2011 Load: 32.4 t ADT: 1,300

US 6 / FAP 623

Good

Over: creek

1.91 mi W of IL 170, LaSalle, IL

Built 2013 Load: 32.4 t ADT: 2,850

IL 170 FAP 786

Good

Over: Hog Run

5.93 mi S of US 6, LaSalle, IL

Built 2014 Load: 32.4 t ADT: 1,200

IL 170 FAP 786

Good

Over: Unnamed Creek

6.98 mi S of US 6, LaSalle, IL

Built 2014 Load: 32.4 t ADT: 1,200

CO HWY 43

Good

Over: PECUMSAGANCREEK

3 MI N OF UTICA ILL, LaSalle, IL

Built 1979 Load: 32.4 t ADT: 950

TR 270 E 1525TH

Good

Over: INDIAN CREEK

E 1525 N 4750, LaSalle, IL

Built 1979 Load: 32.4 t ADT: 125

CH 43 E 8TH RD

Good

Over: TOMAHAWK CREEK

E 8TH N3690, LaSalle, IL

Built 1980 Load: 32.4 t ADT: 900

TR 52 E 3RD

Good

Over: LITTLE VERMILION

E 3RD N 4100, LaSalle, IL

Built 1980 Load: 32.4 t ADT: 825

TR 160 E 9TH

Good

Over: SUTPHENS RUN

E 9TH N 4615, LaSalle, IL

Built 1980 Load: 32.4 t ADT: 25

TR 571

Good

Over: STREAM

N 1ST E 1050, LaSalle, IL

Built 1982 Load: 32.4 t ADT: 50

TR 284 E 16TH

Good

Over: BUCK CREEK

E16TH N 3450TH, LaSalle, IL

Built 1983 Load: 32.4 t ADT: 200

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

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.