Lake County, IN
488 public highway bridges
Lake County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Lake County, Indiana contains 488 public highway bridges. Roughly 28.9% are rated “Good,” 24% “Fair,” and 5.5% “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.
Condition Distribution
All Bridges (488)
MAIN STREET
GoodOver: HART DITCH
00.60 W. of WHITE OAK AVE, Lake, IN
135TH AVENUE
GoodOver: WEST CREEK
00.80 E. of CALUMET AVE, Lake, IN
SR 51
GoodOver: DUCK CREEK
00.66 S SR 130, Lake, IN
ARBOGAST AVE
GoodOver: CADY MARSH DITCH
00.52 S. of RIDGE RD, Lake, IN
COLUMBIA AVENUE
GoodOver: LITTLE CALUMET RIVER
00.60 N. of RIDGE RD, Lake, IN
HARRISON STREET
GoodOver: LITTLE CALUMET RIVER
00.70 N. of 35th AVENUE, Lake, IN
FRAN-LIN PARKWAY
GoodOver: HART DITCH
00.40 N. of 45th Ave, Lake, IN
FRAN-LIN PARKWAY
GoodOver: HART DITCH
00.40 N. of 45th Ave, Lake, IN
AIRPORT ROAD
GoodOver: CSX & EJ&E RR
00.11 N. of CHICAGO AVE, Lake, IN
US 30
GoodOver: DEEP RIVER
01.96 E SR 51, Lake, IN
123 RD AVENUE
GoodOver: LAKE OVERFLOW
0.90 E RANDOLPH STREET, Lake, IN
STATE LINE ROAD
PoorOver: KANKAKEE RIVER
00.80 S 241st AVE, Lake, IN
COLORADO STREET
PoorOver: DEEP RIVER
00.30 N. of 97th Ave, Lake, IN
WISCONSIN STREET
PoorOver: LAKE GEORGE
00.20 S. of 3rd St, Lake, IN
213TH STREET
PoorOver: HART DITCH
00.10 W. of CALUMET AVE, Lake, IN
CLAY STREET
PoorOver: DEEP RIVER
00.30 N of 97th Ave, Lake, IN
153RD AVENUE
PoorOver: LAKE DALECARLIA
00.10 E. of COLFAX, Lake, IN
BINYON STREET
PoorOver: CEDAR CREEK
00.10 W. of MORSE ST., Lake, IN
PARRISH AVENUE
PoorOver: BRANCH OF CEDAR LAKE
00.50 S. of 133rd Ave, Lake, IN
BROAD STREET
PoorOver: CADY MARSH DITCH
00.40 S of RIDGE RD, Lake, IN
OLD LINCOLN HWY.
PoorOver: DEEP RIVER
00.00 Int of COUNTY LINE, Lake, IN
169TH AVENUE
PoorOver: SPRING RUN DITCH
00.40 W. of SR 55, Lake, IN
121ST AVENUE
PoorOver: NILES DITCH
00.20 E of IOWA ST, Lake, IN
US 6
PoorOver: MUCK POCKET
00.84 E SR 51/I-80/94, Lake, IN
JOLIET STREET
PoorOver: ST JOHN DITCH
00.40 E. of US 41, Lake, IN
SR 51
PoorOver: DEEP RIVER
02.00 N US 30, Lake, IN
ARIZONA STREET
PoorOver: DEEP RIVER
00.30 N of 61st Ave, Lake, IN
CLARK STREET
PoorOver: BRANCH BEAVER DAM DITCH
00.20 S. of 101st Ave, Lake, IN
NORTH LAKE STREET
PoorOver: GRAND CALUMET RIVER
00.10 N. of HEMLOCK AVE., Lake, IN
I-90 RAMP/BUCHANAN
PoorOver: GRAND CALUMET RIVER
01.95 E US 12, Lake, IN
I-65 SB
PoorOver: BROWN DITCH
03.64 S SR 2, Lake, IN
45TH STREET
PoorOver: HART DITCH
00.10 W. of WHITE OAK AVE, Lake, IN
BUCHANAN STREET
PoorOver: GRAND CALUMET RIVER
00.50 N US 12/US 20 WB, Lake, IN
MADISON STREET
PoorOver: BEAVER DAM DITCH
00.10 S. of 101st Ave, Lake, IN
OAKLEY AVENUE
PoorOver: CEDAR CREEK
00.10 W. of FREMONT ST., Lake, IN
161ST AVENUE
PoorOver: CEDAR CREEK
00.20 E. of COLFAX, Lake, IN
BUCHANAN STR. RAMP
PoorOver: GRAND CALUMET RIVER
00.50 N US 12/US 20 WB, Lake, IN
I-80 EB
PoorOver: NS RR, CN RR, WYE
00.50 E SR 912, Lake, IN
Read our methodology - how this data is sourced, computed, and verified.
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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.