Lake County, IN

488 public highway bridges

Lake County Bridge Snapshot

Lake County, Indiana contains 488 public highway bridges in the FHWA National Bridge Inventory. Roughly 28.9% are rated “Good,” 24% “Fair,” 5.5% “Poor,” and 5.5% 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 IN 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.

488
Total Bridges
28.9%
Good
5.5%
Poor
5.5%
Structurally Deficient

Condition Distribution

Good
28.9% (141)
Fair
24% (117)
Poor
5.5% (27)
SD
5.5% (27)

All Bridges (488)

I-80

Good

Over: LITTLE CALUMET RIVER

00.59 E SR 53, Lake, IN

Built 1996 Load: 32.7 t ADT: 98,335

US 231

Good

Over: E BRANCH STONY RUN

03.70 N SR 2, Lake, IN

Built 2012 Load: 32.7 t ADT: 9,250

GRAND BLVD.

Good

Over: OLD BROWN DITCH

01.00 E of RANGE LINE, Lake, IN

Built 2000 Load: 32.7 t ADT: 119

145TH AVENUE

Good

Over: STONEY RUN DITCH

00.50 W of ARIZONA, Lake, IN

Built 1997 Load: 32.7 t ADT: 124

BELSHAW ROAD

Good

Over: BRUCE DITCH

01.00 E. of US 41, Lake, IN

Built 1964 Load: 32.7 t ADT: 1,633

101ST AVENUE

Good

Over: BULL RUN DITCH

00.00 Int of WHITE OAK Av, Lake, IN

Built 1993 Load: 32.7 t ADT: 2,886

101ST AVENUE

Good

Over: BRANCH BEAVER DAM DITCH

00.50 W. OF CLARK ST, Lake, IN

Built 2001 Load: 32.7 t ADT: 3,734

169TH AVENUE

Good

Over: WEST CREEK

00.90 E. of STATE LINE, Lake, IN

Built 1998 Load: 32.7 t ADT: 352

MERRILLVILLE ROAD

Good

Over: BEAVER DAM DITCH

00.10 N. of 101st Ave, Lake, IN

Built 1990 Load: 32.7 t ADT: 6,062

CLINE AVENUE

Good

Over: TURKEY CREEK

00.10 N. of 73rd Ave, Lake, IN

Built 2005 Load: 32.7 t ADT: 9,510

HOHMAN AVENUE

Good

Over: GRAND CALUMET RIVER

00.10 N. of MICHIGAN ST., Lake, IN

Built 1963 Load: 32.7 t ADT: 11,712

NORTHCOTE AVENUE

Good

Over: LITTLE CALUMET RIVER

00.60 N. of RIDGE RD, Lake, IN

Built 1988 Load: 32.7 t ADT: 6,025

RAND STREET

Good

Over: DEEP RIVER

00.40 W. of SR 51, Lake, IN

Built 1997 Load: 32.7 t ADT: 1,266

GRAND BLVD.

Good

Over: BRANCH OF DEER CREEK

00.50 N of 109th Ave, Lake, IN

Built 2002 Load: 32.7 t ADT: 685

MORSE STREET

Good

Over: MCCONNELL DITCH

00.27 S. of 171st Ave, Lake, IN

Built 2004 Load: 32.7 t ADT: 3,317

DEER CREEK DRIVE

Good

Over: DYER DITCH

01.00 W. of US 41, Lake, IN

Built 2004 Load: 32.7 t ADT: 65

ALVINA ROSE COURT

Good

Over: BULL RUN DITCH

00.10 E. of ROSEWOOD DR., Lake, IN

Built 2000 Load: 32.7 t ADT: 65

77TH AVENUE

Good

Over: TRIBUTARY TO DYER DITCH

00.40 W. of US 41, Lake, IN

Built 2004 Load: 32.7 t ADT: 6,146

SOHL AVENUE

Good

Over: GRAND CALUMET RIVER

00.10 N. OF MICHIGAN ST., Lake, IN

Built 2009 Load: 32.7 t ADT: 2,336

149TH AVENUE

Good

Over: CEDAR CREEK

00.30 E MORSE ST, Lake, IN

Built 2009 Load: 32.7 t ADT: 452

185TH AVENUE

Good

Over: WEST CREEK

00.30 E. of STATE LINE, Lake, IN

Built 1992 Load: 32.8 t ADT: 422

SR 912 RAMP WS&ES

Good

Over: LITTLE CALUMET RIVER

00.22 E I-80, Lake, IN

Built 1999 Load: 33.2 t ADT: 9,429

211TH AVENUE

Good

Over: CEDAR CREEK

00.30 W. of COLFAX St, Lake, IN

Built 2007 Load: 33.6 t ADT: 119

197TH AVENUE

Good

Over: WEST CREEK DITCH

00.40 W. of CALUMET AVE, Lake, IN

Built 1992 Load: 33.6 t ADT: 238

GRAND BLVD

Good

Over: DEEP RIVER

00.20 N 93RD AVE, Lake, IN

Built 2012 Load: 33.6 t ADT: 1,601

205TH AVENUE

Good

Over: BRUCE DITCH

00.90 E US 41, Lake, IN

Built 2008 Load: 33.8 t ADT: 236

SR 55

Good

Over: BROWN DITCH

04.52 S SR 2, Lake, IN

Built 2014 Load: 34.0 t ADT: 2,380

109TH AVENUE

Good

Over: NILES DITCH

00.10 E of COLORADO, Lake, IN

Built 2008 Load: 34.2 t ADT: 16,385

SR 2

Good

Over: GRIESEL DITCH

00.23 E SR 55, Lake, IN

Built 2007 Load: 34.3 t ADT: 9,256

US 41

Good

Over: DIKE DITCH

05.52 S SR 2, Lake, IN

Built 1954 Load: 34.3 t ADT: 7,365

FRONT STREET

Good

Over: DUCK CREEK

00.10 N of OLD RIDGE RD, Lake, IN

Built 1993 Load: 34.3 t ADT: 8,199

CLARK STREET

Good

Over: BEAVER DAM DITCH

00.40 N. of 101st Ave, Lake, IN

Built 2000 Load: 34.6 t ADT: 4,369

CALUMET AVENUE

Good

Over: HART DITCH

01.20 N. of US 30, Lake, IN

Built 2004 Load: 34.7 t ADT: 22,835

CLINE AVENUE

Good

Over: WILLIAMS DITCH

00.00 Int of 245th Ave, Lake, IN

Built 1999 Load: 34.9 t ADT: 17

219TH AVENUE

Good

Over: BRUCE DITCH

00.60 E. of US 41, Lake, IN

Built 2007 Load: 34.9 t ADT: 238

LIABLE ROAD

Good

Over: CADY MARSH DITCH

00.10 S. of WIRTH RD., Lake, IN

Built 1985 Load: 34.9 t ADT: 1,696

205TH AVENUE

Good

Over: CEDAR CREEK

00.40 W. of COLFAX ST., Lake, IN

Built 1987 Load: 35.0 t ADT: 584

KLEINMAN ROAD

Good

Over: CADY MARSH DITCH

00.10 S. of WIRTH RD., Lake, IN

Built 1985 Load: 35.1 t ADT: 5,233

101ST AVENUE

Good

Over: BULL RUN DITCH

00.20 W. of WHITE OAK Ave, Lake, IN

Built 2010 Load: 35.3 t ADT: 3,569

US 41 SB

Good

Over: SINGLETON DITCH

03.23 S SR 2, Lake, IN

Built 1954 Load: 35.6 t ADT: 5,015

I-90 WB

Good

Over: GRAND CALUMET RIVER

00.72 E US 12, Lake, IN

Built 2011 Load: 35.6 t ADT: 17,255

SR 2

Good

Over: PEARLE CREEK

00.88 E I-65, Lake, IN

Built 2006 Load: 36.0 t ADT: 7,940

AINSWORTH ROAD

Good

Over: DEEP RIVER

00.20 E of RANDOLPH, Lake, IN

Built 1992 Load: 36.3 t ADT: 1,407

37TH AVENUE

Good

Over: DEEP RIVER

00.50 W US 6, Lake, IN

Built 1998 Load: 36.3 t ADT: 20,588

HART STREET

Good

Over: HART DITCH (PLUM CR.)

00.20 S. of US 30, Lake, IN

Built 2020 Load: 36.6 t ADT: 14,180

AIRPORT RD

Good

Over: GRAND CALUMET RIVER

00.20 N. of US 20, Lake, IN

Built 2001 Load: 36.7 t ADT: 10,736

CALUMET AVENUE

Good

Over: NS RAILROAD

00.40 N OF US 30, Lake, IN

Built 2004 Load: 37.1 t ADT: 22,835

CLARK STREET

Good

Over: LITTLE CALUMET RIVER

00.90 N. of RIDGE RD, Lake, IN

Built 1964 Load: 37.3 t ADT: 9,908

197TH AVENUE

Good

Over: LITTLE DITCH

00.00 INT W/RANGE LINE RD, Lake, IN

Built 1997 Load: 37.3 t ADT: 120

US 30

Good

Over: SCHILLING DITCH

00.60 W US 41, Lake, IN

Built 1997 Load: 37.6 t ADT: 31,823

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