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)

SR 912, 2 RAMPS

Fair

Over: BLOCK AVENUE

01.63 W US 12, Lake, IN

Built 1980 Load: 43.7 t ADT: 126

SR 55

Fair

Over: TURKEY CREEK

01.92 N US 30, Lake, IN

Built 1993 Load: 44.4 t ADT: 19,257

I-80 RM TO SR 912W

Fair

Over: NS RR

00.25 W I-80, Lake, IN

Built 1997 Load: 45.4 t ADT: 22,900

I-90 WB

Fair

Over: WOLF LAKE

02.06 E US 12, Lake, IN

Built 1956 Load: 46.5 t ADT: 18,085

I-90 EB

Fair

Over: WOLF LAKE

02.06 E US 12, Lake, IN

Built 1956 Load: 47.0 t ADT: 18,085

I-90 EB

Fair

Over: EJ&E RR

00.50 E SR 912, Lake, IN

Built 1956 Load: 47.3 t ADT: 17,316

I-90 WB

Fair

Over: EJ&E RR

00.50 E SR 912, Lake, IN

Built 1956 Load: 47.3 t ADT: 15,083

I-90 EB

Fair

Over: IND HARBOR BELT RR

01.48 E US 12, Lake, IN

Built 1956 Load: 48.5 t ADT: 18,357

I-90 WB

Fair

Over: IND HARBOR BELT RR

01.48 E US 12, Lake, IN

Built 1956 Load: 48.5 t ADT: 18,357

US 41

Fair

Over: CSX RR

02.34 N US 231, Lake, IN

Built 1962 Load: 49.6 t ADT: 25,099

I-90 EB

Fair

Over: BURNS DITCH/DEEP RIVER

00.17 W I-94, Lake, IN

Built 1956 Load: 49.6 t ADT: 17,335

I-90 WB

Fair

Over: BURNS DITCH/DEEP RIVER

00.17 W I-94, Lake, IN

Built 1956 Load: 49.6 t ADT: 17,335

RIDGE ROAD

Fair

Over: CONRAIL RAILROAD

00.30 E US 41, Lake, IN

Built 1997 Load: 49.9 t ADT: 16,879

US 41 NB/SB

Fair

Over: GTW RR

02.80 N US 30, Lake, IN

Built 2018 Load: 51.2 t ADT: 48,200

169TH STREET

Fair

Over: CONRAIL RAILROAD

00.30 W. of KENNEDY AVE., Lake, IN

Built 1966 Load: 51.4 t ADT: 11,308

I-90 EB

Fair

Over: IND HARBOR BELT RR

00.89 W US 41, Lake, IN

Built 1956 Load: 51.5 t ADT: 17,450

I-90 WB

Fair

Over: IND HARBOR BELT RR

00.89 W US 41, Lake, IN

Built 1956 Load: 51.5 t ADT: 17,450

SR 2

Fair

Over: BRYANT DITCH

00.60 W I-65, Lake, IN

Built 1962 Load: 58.8 t ADT: 10,018

I-80 EB/WB, 2 RAMP

Fair

Over: ERIE-LACKAWANNA TRAIL

00.08 W US 41, Lake, IN

Built 2005 Load: 61.6 t ADT: 175,670

173RD AVENUE

Fair

Over: BRYANT DITCH

00.20 E of MISSISSIPPI, Lake, IN

Built 1970 Load: 80.1 t ADT: 10

FAIRGROUNDS ROAD

Good

Over: DRAINAGE SWALE

00.38 N of 121st Avenue, Lake, IN

Built 1878 Load: 7.3 t ADT: 5

ACCESS ROAD #1

Good

Over: LITTLE CALUMET RIVER

00.22 E I-80, Lake, IN

Built 1999 Load: 24.9 t ADT: 102

HEDWIG DRIVE

Good

Over: WEST CREEK

00.40 S. OF W. 97TH LANE, Lake, IN

Built 2009 Load: 25.7 t ADT: 800

I-65 NB

Good

Over: WIRTZ DITCH

04.81 N SR 2, Lake, IN

Built 1964 Load: 26.6 t ADT: 25,990

I-65 SB

Good

Over: WIRTZ DITCH

04.81 N SR 2, Lake, IN

Built 1964 Load: 26.6 t ADT: 19,607

213TH STREET

Good

Over: DYER DITCH

00.80 E. of CALUMET AVE., Lake, IN

Built 1996 Load: 27.4 t ADT: 5,782

I-65 NB

Good

Over: MAIN BEAVER DAM DITCH

02.16 N US 231 N JCT, Lake, IN

Built 1966 Load: 28.2 t ADT: 35,847

SR 2

Good

Over: JOHN BRUCE DITCH

00.74 E US 41, Lake, IN

Built 1988 Load: 28.5 t ADT: 7,714

MONON ROAD

Good

Over: BROWN DITCH

00.00 Int of 221st Ave, Lake, IN

Built 1993 Load: 28.6 t ADT: 258

MONON ROAD

Good

Over: TULLY DITCH

00.40 N. of 231st Ave, Lake, IN

Built 2002 Load: 28.6 t ADT: 976

145TH AVENUE

Good

Over: EAST BRANCH STONEY RUN

00.10 E. of US 231, Lake, IN

Built 2004 Load: 29.1 t ADT: 251

US 6

Good

Over: DEEP RIVER

00.71 E SR 51/I-80/94, Lake, IN

Built 1941 Load: 29.2 t ADT: 22,439

US 41

Good

Over: LITTLE CALUMET RIVER

00.51 S I-80, Lake, IN

Built 1996 Load: 30.1 t ADT: 39,016

144TH AVENUE

Good

Over: CEDAR CREEK

00.20 E. of MORSE ST., Lake, IN

Built 2002 Load: 30.3 t ADT: 317

171ST AVENUE

Good

Over: CEDAR CREEK

00.50 E. of MORSE St, Lake, IN

Built 2007 Load: 30.4 t ADT: 1,396

MISSISSIPPI STREET

Good

Over: GRAND TRUNK RAILROAD

00.30 N. OF 69TH AVENUE, Lake, IN

Built 2004 Load: 31.2 t ADT: 10,846

US 6

Good

Over: DEEP RIVER

00.62 W SR 51 E JCT, Lake, IN

Built 1940 Load: 31.8 t ADT: 22,439

I-65 SB

Good

Over: TURKEY CREEK

02.70 N US 30, Lake, IN

Built 1965 Load: 31.8 t ADT: 56,252

I-65 SB EXIT RAMP

Good

Over: TURKEY CREEK

02.70 N US 30, Lake, IN

Built 2000 Load: 31.8 t ADT: 5,070

I-90 WB

Good

Over: GRAND CALUMET RIVER

02.31 E US 12, Lake, IN

Built 2011 Load: 31.8 t ADT: 20,900

RIDGE ROAD

Good

Over: HART DITCH

00.40 W US 41, Lake, IN

Built 1996 Load: 31.8 t ADT: 16,879

KING STREET

Good

Over: DIKE DITCH

00.10 S. of 249th Ave., Lake, IN

Built 1999 Load: 32.0 t ADT: 174

CLINE AVENUE

Good

Over: BROWN DITCH

00.80 S. of 221st Ave, Lake, IN

Built 1996 Load: 32.1 t ADT: 158

221ST AVENUE

Good

Over: SINGLETON DITCH

00.00 Int. of CLINE Ave, Lake, IN

Built 1996 Load: 32.1 t ADT: 119

SR 912

Good

Over: IHB RR

00.19 E US 20, Lake, IN

Built 1960 Load: 32.4 t ADT: 20,546

US 30

Good

Over: PENNSY GREENWAY TRL

01.88 E US 41, Lake, IN

Built 1997 Load: 32.7 t ADT: 40,615

US 41

Good

Over: ARM WEST CREEK

00.25 N US 231, Lake, IN

Built 2014 Load: 32.7 t ADT: 22,421

US 41

Good

Over: CADY MARSH DITCH

01.80 S I-80, Lake, IN

Built 2004 Load: 32.7 t ADT: 3,371

I-65, RAMPS

Good

Over: HIKING TRAIL

05.71 N US 30, Lake, IN

Built 2001 Load: 32.7 t ADT: 95,353

GEORGIA STREET

Good

Over: LITTLE CALUMET RIVER

00.07 S I-80, Lake, IN

Built 1996 Load: 32.7 t ADT: 7,373

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

Related

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