Porter County, IN

280 public highway bridges

Porter County Bridge Snapshot

Porter County, Indiana contains 280 public highway bridges in the FHWA National Bridge Inventory. Roughly 29.3% are rated “Good,” 38.2% “Fair,” 5% “Poor,” and 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.

280
Total Bridges
29.3%
Good
5%
Poor
5%
Structurally Deficient

Condition Distribution

Good
29.3% (82)
Fair
38.2% (107)
Poor
5% (14)
SD
5% (14)

All Bridges (280)

WEST STREET

Fair

Over: SALT CREEK

00.30 W WASHINGTON ST, Porter, IN

Built 1971 Load: 27.2 t ADT: 2,550

CR 900S

Fair

Over: HEINHOLD DITCH

00.50 E CR 300 E, Porter, IN

Built 1930 Load: 27.5 t ADT: 220

SR 8

Fair

Over: COBB DITCH

02.92 W SR 49, Porter, IN

Built 1952 Load: 27.9 t ADT: 4,768

CR 200S

Fair

Over: KOSELKI DITCH

01.10 E CR 325 E, Porter, IN

Built 1930 Load: 27.9 t ADT: 140

INDIAN BOUNDARY RD

Fair

Over: LITTLE CALUMET RIVER

00.80 E JCT SR 49, Porter, IN

Built 1974 Load: 27.9 t ADT: 4,690

MORGAN AVENUE

Fair

Over: COFFEE CREEK

00.10 E CALUMET ROAD, Porter, IN

Built 1977 Load: 27.9 t ADT: 800

CR 200S

Fair

Over: HUTTON DITCH

00.30 W CR 550 E, Porter, IN

Built 1930 Load: 28.2 t ADT: 140

CR 700S

Fair

Over: KOSELKI DITCH

00.40 W CR 450 E, Porter, IN

Built 1991 Load: 28.2 t ADT: 80

CR 625W

Fair

Over: BREYFOGEL DITCH

01.30 S 1000 S, Porter, IN

Built 1930 Load: 28.2 t ADT: 1,320

US 20

Fair

Over: CSX RR

01.30 W SR 249, Porter, IN

Built 1931 Load: 28.5 t ADT: 9,928

CR 700S

Fair

Over: PHILLIPS DITCH

00.10 W CR 150 W, Porter, IN

Built 1973 Load: 28.5 t ADT: 30

CR 900N

Fair

Over: BRANCH DAMON RUN

00.30 W CR 100W, Porter, IN

Built 1965 Load: 28.5 t ADT: 1,690

SMOKE ROAD

Fair

Over: SANDY HOOK DITCH

00.80 N JCT. SR 8, Porter, IN

Built 1930 Load: 28.8 t ADT: 870

CR 500N

Fair

Over: PEPPER CREEK

00.10 W JCT SR 149, Porter, IN

Built 1996 Load: 29.2 t ADT: 2,370

SR 49

Fair

Over: AHLGRIM DITCH

03.10 N SR 8, Porter, IN

Built 1940 Load: 29.5 t ADT: 8,230

US 6

Fair

Over: COFFEE CREEK

02.10 E SR 49, Porter, IN

Built 1985 Load: 29.8 t ADT: 8,232

CR 900S

Fair

Over: PHILLIPS DITCH

00.20 E CR 200 W, Porter, IN

Built 1930 Load: 29.8 t ADT: 410

CR 900S

Fair

Over: COBBS CREEK

00.70 E JCT SR 2, Porter, IN

Built 1930 Load: 30.1 t ADT: 580

CR 600S

Fair

Over: SANDY HOOK DITCH

00.80 E SMOKE ROAD, Porter, IN

Built 1930 Load: 30.8 t ADT: 300

CR 350W

Fair

Over: LUDINGTON DITCH

00.20 N 400 S, Porter, IN

Built 1962 Load: 30.8 t ADT: 530

MULBERRY AVENUE

Fair

Over: WILLOW CREEK

00.40 E WILLOWDALE ROAD, Porter, IN

Built 1973 Load: 30.9 t ADT: 3,010

CR 600W

Fair

Over: CORNELL DITCH

00.20 N 500 S, Porter, IN

Built 1974 Load: 31.1 t ADT: 280

SR 49

Fair

Over: REEVES DITCH

03.26 S SR 8, Porter, IN

Built 1996 Load: 31.4 t ADT: 4,070

CR 275E

Fair

Over: HEINHOLD DITCH

00.10 N 1050 S, Porter, IN

Built 1985 Load: 31.4 t ADT: 21

HOWE ROAD

Fair

Over: LITTLE CALUMET RIVER

00.50 SE OAK HILL RD, Porter, IN

Built 1975 Load: 31.4 t ADT: 160

SR 49

Fair

Over: AMTRAK

00.33 N I-94, Porter, IN

Built 1970 Load: 31.8 t ADT: 13,774

CR 600S

Fair

Over: COBB DITCH

00.10 W SMOKE ROAD, Porter, IN

Built 1930 Load: 31.8 t ADT: 140

CR 450W

Fair

Over: CORNELL DITCH

00.40 S CR 550 S, Porter, IN

Built 1971 Load: 31.8 t ADT: 70

SR 249 NB

Fair

Over: LITTLE CALUMET RIVER

00.71 N I-94, Porter, IN

Built 1972 Load: 32.1 t ADT: 5,400

CR 500N

Fair

Over: SALT CREEK

00.80 W JCT SR 149, Porter, IN

Built 1981 Load: 32.4 t ADT: 2,480

CR 150E

Fair

Over: AHLGRIM DITCH

00.10 N 500 S, Porter, IN

Built 1996 Load: 32.7 t ADT: 340

CR 50W

Fair

Over: KANKAKEE RIVER

00.50 S CR 1050 S, Porter, IN

Built 1930 Load: 32.7 t ADT: 320

CR 250W

Fair

Over: KANKAKEE RIVER

01.50 S CR 900 S, Porter, IN

Built 1987 Load: 32.7 t ADT: 640

CR 600S

Fair

Over: JONES DITCH

00.10 E SMOKE ROAD, Porter, IN

Built 1930 Load: 32.7 t ADT: 300

CR 450S

Fair

Over: JONES DITCH

00.30 E SMOKE ROAD, Porter, IN

Built 1972 Load: 32.7 t ADT: 400

CR 450S

Fair

Over: COBB DITCH

00.40 W SMOKE ROAD, Porter, IN

Built 1970 Load: 32.7 t ADT: 640

CR 400N

Fair

Over: CROOKED CREEK

00.70 E CR 575E, Porter, IN

Built 1950 Load: 32.7 t ADT: 700

CR 400N

Fair

Over: CROOKED CREEK

00.20 E JCT SR 2, Porter, IN

Built 1972 Load: 32.7 t ADT: 650

CR 700E

Fair

Over: BRANCH OF KEMPER DITCH

00.90 S CR 1275 N, Porter, IN

Built 1950 Load: 32.7 t ADT: 2,050

CR 400W

Fair

Over: CORNELL DITCH

00.30 S CR 600 S, Porter, IN

Built 1930 Load: 32.7 t ADT: 360

CR 350E

Fair

Over: KOSELKI DITCH

01.00 SW JCT US 6, Porter, IN

Built 1940 Load: 32.7 t ADT: 170

JOLIET ROAD

Fair

Over: SALT CREEK

00.40 W JCT SR 130, Porter, IN

Built 1921 Load: 32.7 t ADT: 7,750

CALUMET ROAD

Fair

Over: COFFEE CREEK

00.10 N INDIAN BOUNDARY, Porter, IN

Built 1925 Load: 32.7 t ADT: 1,090

JOLIET ROAD

Fair

Over: CHICAGO FT WAYNE EASTERN

00.10 W SR 130, Porter, IN

Built 1930 Load: 32.7 t ADT: 8,090

CAMPBELL AVENUE

Fair

Over: GRAND TRUNK & WESTERN RR

00.10 S HARRISON BLVD, Porter, IN

Built 1910 Load: 32.7 t ADT: 11,050

CRISMAN ROAD

Fair

Over: CONRAIL RAILROAD

00.40 SW OLD PORTER ROAD, Porter, IN

Built 1987 Load: 32.7 t ADT: 1,910

EVERGREENS STREET

Fair

Over: WILLOW CREEK

00.20 E DOMBEY ROAD, Porter, IN

Built 2014 Load: 32.7 t ADT: 1,970

Po-500E

Fair

Over: KANKAKEE RIVER

0.13 S CR 500E, Porter, IN

Built 1985 Load: 32.7 t ADT: 1

CR 400W/MCCOOL RD.

Fair

Over: UNT SALT CREEK

00.36 S CR 700 N, Porter, IN

Built 1961 Load: 32.7 t ADT: 190

CR 200 E

Fair

Over: COFFEE CREEK

00.04 S. I-90 (TOLL ROAD), Porter, IN

Built 1956 Load: 32.7 t ADT: 2,875

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