LaSalle County, IL

529 public highway bridges

LaSalle County Bridge Snapshot

LaSalle County, Illinois contains 529 public highway bridges in the FHWA National Bridge Inventory. Roughly 37.1% are rated “Good,” 39.7% “Fair,” 11.5% “Poor,” and 11.5% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in IL are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

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

529
Total Bridges
37.1%
Good
11.5%
Poor
11.5%
Structurally Deficient

Condition Distribution

Good
37.1% (196)
Fair
39.7% (210)
Poor
11.5% (61)
SD
11.5% (61)

All Bridges (529)

TR 198 E 11TH

Good

Over: STREAM

E11TH N3075TH, LaSalle, IL

Built 1983 Load: 32.4 t ADT: 50

TR 230

Good

Over: CREEK

E 13TH RD N 3550, LaSalle, IL

Built 1984 Load: 32.4 t ADT: 25

TR 322 B

Good

Over: COAL RUN

E 19th N 1250, LaSalle, IL

Built 1984 Load: 32.4 t ADT: 450

TR 166

Good

Over: CREEK

E 10TH RD N 750, LaSalle, IL

Built 1984 Load: 32.4 t ADT: 25

TR 523A

Good

Over: OTTER CREEK

N 15TH RD E 2370, LaSalle, IL

Built 1985 Load: 32.4 t ADT: 200

TR 170

Good

Over: PECUMSAGAM CREEK

E 10TH RD N 3270, LaSalle, IL

Built 1985 Load: 32.4 t ADT: 50

TR 222

Good

Over: BR INDIAN CREEK

E 1250 TH N 4605, LaSalle, IL

Built 1986 Load: 32.4 t ADT: 250

TR 148

Good

Over: LITTLE VERMILION

E 8TH RD N 4192, LaSalle, IL

Built 1986 Load: 32.4 t ADT: 75

TR 493

Good

Over: WOLF CR

N 18 TH E 1980, LaSalle, IL

Built 1986 Load: 32.4 t ADT: 50

FAS 263 CH 44

Good

Over: CREEK

E 950 TH N 1425, LaSalle, IL

Built 1987 Load: 32.4 t ADT: 250

TR 471

Good

Over: BR BAILEY CR

N 1950 TH E 550, LaSalle, IL

Built 1987 Load: 32.4 t ADT: 100

TR441

Good

Over: BR. COVEL CREEK

N22ND E2010TH, LaSalle, IL

Built 1987 Load: 32.4 t ADT: 25

TR 462

Good

Over: ROODS CREEK

E2975TH N4100, LaSalle, IL

Built 1987 Load: 32.4 t ADT: 25

TR 122 B

Good

Over: SANDY CR.

E 7TH RD N 975, LaSalle, IL

Built 1987 Load: 32.4 t ADT: 50

TR 125B

Good

Over: L VERMILLION RIVER

N 40TH RD, E 625TH, LaSalle, IL

Built 1989 Load: 32.4 t ADT: 25

TR 561

Good

Over: DRAINAGE DITCH

N6TH RD, E 815, LaSalle, IL

Built 1988 Load: 32.4 t ADT: 10

FAS 261 CH 34

Good

Over: CREEK

N 27TH RD, E 1350, LaSalle, IL

Built 1989 Load: 32.4 t ADT: 1,200

TR 483

Good

Over: BAILEY CREEK

N1851ST,E325TH, LaSalle, IL

Built 1989 Load: 32.4 t ADT: 100

TR 7 N 0TH RD

Good

Over: STREAM

N 0TH RD, E 1130TH, LaSalle, IL

Built 1989 Load: 32.4 t ADT: 25

TR 563

Good

Over: STREAM

N5TH, E670TH, LaSalle, IL

Built 1989 Load: 32.4 t ADT: 100

E 18TH RD,FAU 6160

Good

Over: PRAIRIE CREEK

E.18TH, N.1420, LaSalle, IL

Built 1991 Load: 32.4 t ADT: 350

FAS 2255

Good

Over: FOX RIVER

+/-2MIL E ILL23, LaSalle, IL

Built 1996 Load: 32.4 t ADT: 1,000

TR129

Good

Over: BRUMBACH CR.

N.3450TH E2310, LaSalle, IL

Built 1994 Load: 32.4 t ADT: 100

TR 535

Good

Over: OTTER CREEK

E.2410 N 14TH, LaSalle, IL

Built 1993 Load: 32.4 t ADT: 25

E.29TH-TR458

Good

Over: BR WAUPECAN CREEK.

3 MI SE RANSOM, LaSalle, IL

Built 1995 Load: 32.4 t ADT: 25

CH 22 FAS 1270

Good

Over: INDIAN CREEK

N 4510 E 1600, LaSalle, IL

Built 1996 Load: 32.4 t ADT: 225

TR 535

Good

Over: WAUPECAN CREEK

.3M E OF E29TH, LaSalle, IL

Built 1996 Load: 32.4 t ADT: 25

TR 523A

Good

Over: OTTER CREEK

N 15TH E 2015, LaSalle, IL

Built 1996 Load: 32.4 t ADT: 400

TR 168

Good

Over: TRIB OF VERMILLION R

E 10TH, N 2130, LaSalle, IL

Built 1996 Load: 32.4 t ADT: 75

TR 67

Good

Over: L INDIAN CREEK

N44TH E 2090, LaSalle, IL

Built 1997 Load: 32.4 t ADT: 150

TR 206

Good

Over: UNNAMED STREAM

E1159th, N 2100, LaSalle, IL

Built 2000 Load: 32.4 t ADT: 50

TR 211B

Good

Over: BUCK CREEK

N35TH, E1360, LaSalle, IL

Built 1997 Load: 32.4 t ADT: 225

TR 211B

Good

Over: BUCK CREEK

N35TH, E1510, LaSalle, IL

Built 1997 Load: 32.4 t ADT: 250

TR 452

Good

Over: BR. MISSION CREEK

E2750 N4005, LaSalle, IL

Built 1998 Load: 32.4 t ADT: 50

FAS 259

Good

Over: FOX RIVER

E2603, N4125, LaSalle, IL

Built 2008 Load: 32.4 t ADT: 1,750

TR 179

Good

Over: CROOKED LEG CREEK

N. 38th E. 1665, LaSalle, IL

Built 1999 Load: 32.4 t ADT: 250

FAS 1270

Good

Over: TRIB OF INDIAN CREEK

4.2 S, 1.5 W LELAND, LaSalle, IL

Built 1999 Load: 32.4 t ADT: 225

TR 129

Good

Over: CROOKED LEG CREEK

N 4050, E 1495, LaSalle, IL

Built 2000 Load: 32.4 t ADT: 25

TR 523B

Good

Over: WAUPECAN CREEK

0.8 MI. E. RANSOM, LaSalle, IL

Built 2000 Load: 32.4 t ADT: 225

TR 249

Good

Over: UNNAMED CREEK

N. 32ND RD, E2225, LaSalle, IL

Built 2001 Load: 32.4 t ADT: 300

TR 262

Good

Over: UNNAMED STREAM

E1500, N2540, LaSalle, IL

Built 2001 Load: 32.4 t ADT: 75

TR 18A

Good

Over: LITTLE SANDY CREEK

E 1ST, N 1330, LaSalle, IL

Built 2002 Load: 32.4 t ADT: 10

FAS 178

Good

Over: BR INDIAN CR

E 10TH N 4750, LaSalle, IL

Built 2003 Load: 32.4 t ADT: 175

TR 35A

Good

Over: SOMONAUK CREEK

N 46TH E 2597, LaSalle, IL

Built 2005 Load: 32.4 t ADT: 950

TR 455(N 21ST)

Good

Over: UNNAMED STREAM

N21ST, E 863, LaSalle, IL

Built 2003 Load: 32.4 t ADT: 250

TR432C

Good

Over: UNNAMED STREAM

1207 E. 26TH, LaSalle, IL

Built 2004 Load: 32.4 t ADT: 25

CO RD 32

Good

Over: ROODS CREEK

N 41ST,E 2925, LaSalle, IL

Built 2008 Load: 32.4 t ADT: 1,150

CH 54

Good

Over: BR. OF CEDAR CREEK

2249 E. 2ND, LaSalle, IL

Built 2004 Load: 32.4 t ADT: 150

TR 109(N 4101ST)

Good

Over: BR INDIAN CREEK

E. 1765, N 4101ST, LaSalle, IL

Built 2004 Load: 32.4 t ADT: 25

TR 454-B

Good

Over: WAUPECAN CREEK

1550 E. 28TH, LaSalle, IL

Built 2005 Load: 32.4 t ADT: 50

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

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial