St. Joseph County, IN

228 public highway bridges

St. Joseph County Bridge Snapshot

St. Joseph County, Indiana contains 228 public highway bridges in the FHWA National Bridge Inventory. Roughly 26.3% are rated “Good,” 26.8% “Fair,” 3.9% “Poor,” and 3.9% 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.

228

Total Bridges

26.3%

Good

3.9%

Poor

3.9%

Structurally Deficient

Condition Distribution

Good

26.3% (60)

Fair

26.8% (61)

Poor

3.9% (9)

SD

3.9% (9)

All Bridges (228)

Sort:

I-90 WB

Over: JUNIPER RD

00.88 E SR 933, St. Joseph, IN

Built 1956 ADT: 5,662

IRONWOOD ROAD SB

Over: I-90 EB

01.05 W SR 23, St. Joseph, IN

Built 1979 ADT: 14,460

IRONWOOD ROAD NB

Over: I-90 EB

01.06 W SR 23, St. Joseph, IN

Built 1956 ADT: 14,480

I-90 EB

Over: SR 23/EDWARDSBURG RD SBL

02.92 E SR 933, St. Joseph, IN

Built 1956 ADT: 26,420

I-90 WB

Over: SR 23/EDWARDSBURG RD SBL

02.92 E SR 933, St. Joseph, IN

Built 1956 ADT: 26,420

GRAPE RD SB

Over: I-90 WB

00.45 E SR 23, St. Joseph, IN

Built 1956 ADT: 14,480

GRAPE ROAD NB

Over: I-90 EB

00.46 E SR 23, St. Joseph, IN

Built 1978 ADT: 14,480

MAIN STREET

Over: I-90 WB

00.94 E SR 23, St. Joseph, IN

Built 1993 ADT: 14,460

FIR ROAD

Over: I-90 EBL

01.74 E SR 23, St. Joseph, IN

Built 1956 ADT: 28,960

CLEVELAND ROAD

Over: I-90 EBL

02.31 E SR-23, St. Joseph, IN

Built 1956 ADT: 28,960

I-90 RAMP TO SR 33

Over: I-90 WBL

03.18 E SR 23, St. Joseph, IN

Built 1982 ADT: 28,260

SR 331 NB/CAPITAL

Over: I-90 RAMP TO 331/CAPITAL

03.24 E SR-23, St. Joseph, IN

Built 1993 ADT: 1,780

SR 331 SB/CAPITAL

Over: I-90 RAMP TO 331/CAPITAL

03.24 E SR-23, St. Joseph, IN

Built 1993 ADT: 1,780

I-90 EB

Over: CURRANT RD

03.80 E SR 23, St. Joseph, IN

Built 1956 ADT: 428

I-90 WB

Over: CURRANT RD

03.80 E SR 23, St. Joseph, IN

Built 1956 ADT: 428

BITTERSWEET ROAD

Over: I-90 WB

04.79 E SR 23, St. Joseph, IN

Built 1956 ADT: 14,130

BEECH ROAD

Over: I-90 EBL

05.60 W SR 19, St. Joseph, IN

Built 1956 ADT: 28,260

US 20

Over: MIAMI HIGHWAY

00.87 E US-31, St. Joseph, IN

Built 1991 ADT: 10,443

SR 331/BREMEN HWY

Over: US 20 WB

02.81 S SR-933, St. Joseph, IN

Built 1991 ADT: 12,719

US 20

Over: CLOVER ROAD

01.25 E SR-331, St. Joseph, IN

Built 1991 ADT: 474

US 20 EB/SR 331 NB

Over: ELM RD/CAPITAL AVE SB

06.12 E US 31, St. Joseph, IN

Built 1991 ADT: 11,114

US 20 WB

Over: ELM RD/CAPITAL AVE SB

06.12 E US 31, St. Joseph, IN

Built 1991 ADT: 11,114

US 20 WB ON-RAMP

Over: SR 331 (ELM/CAPITAL) NB

06.12 E US-31, St. Joseph, IN

Built 1991 ADT: 6,705

DOGWOOD ROAD

Over: US 20 WB

02.98 E SR-331, St. Joseph, IN

Built 1990 ADT: 19,729

BEECH RD

Over: US 20 WB

05.10 E SR 331, St. Joseph, IN

Built 1990 ADT: 19,385

LOCUST ROAD

Over: US-20 EBL

00.99 E SR 23, St. Joseph, IN

Built 2009 ADT: 16,800

SR 3

Over: US-20(US-31) EBL

03.07 S SR-933, St. Joseph, IN

Built 2004 ADT: 13,750

US 20 WB

Over: IRELAND RD

01.35 E SR 23, St. Joseph, IN

Built 2011 ADT: 16,120

DIXIE HWY

Over: US 31 NB

0.260 S US 20, St. Joseph, IN

Built 2014 ADT: 8,974

SR 4

Over: US 31 NB

00.00 SW US 20, St. Joseph, IN

Built 2014 ADT: 2,077

SR 4

Over: US 31 SB

00.00 SW US 20, St. Joseph, IN

Built 2014 ADT: 4,070

DIXIE HWY

Over: US 31 SB

0.260 S US 20, St. Joseph, IN

Built 2014 ADT: 30,000

ROOSEVELT RD

Over: US 31 NB

02.24 SW US 20, St. Joseph, IN

Built 2012 ADT: 185

ROOSEVELT RD

Over: US 31 SB

02.24 SW US 20, St. Joseph, IN

Built 2012 ADT: 1,034

LAKE TRAIL

Over: US 31 SB

00.86 N SHIVELY RD, St. Joseph, IN

Built 2014 ADT: 2,499

MILLER ROAD

Over: US 31 NB

02.80 N SR 4, St. Joseph, IN

Built 2014 ADT: 18,974

NEW ROAD

Over: US 31 SB

00.90 E OLD US 31, St. Joseph, IN

Built 2014 ADT: 9,026

US 31

Over: KERN ROAD

01.10 S US 20, St. Joseph, IN

Built 2014 ADT: 40,520

US 31 NB

Over: Main Street

1.0 SW US 20, St. Joseph, IN

Built 2014 ADT: 1,993

US 31 SB

Over: Main Street

01.00 SW US 20, St. Joseph, IN

Built 2014 ADT: 1,000

US 31 NB On-Ramp

Over: Main Street

01.00 SW US 20, St. Joseph, IN

Built 2014 ADT: 1,993

US 31 SB Off-Ramp

Over: Main Street

01.00 SW US 20, St. Joseph, IN

Built 2014 ADT: 1,000

US 31 SB

Over: JACKSON RD

00.10 S US 20, St. Joseph, IN

Built 2014 ADT: 15,000

FELLOWS STREET

Over: US 20 WB

0.26 E US 31, St. Joseph, IN

Built 2014 ADT: 19,017

JOHNSON ROAD

Over: US 31 SBL

00.50 SW US 20, St. Joseph, IN

Built 2014 ADT: 13,197

TWYCKENHAM DR

Over: NORTHSIDE BLVD

00.10 N SR 933, St. Joseph, IN

Built 1929 ADT: 2,533

MAYFLOWER RD

Over: ARDMORE TRAIL

00.45 N FILLMORE ROAD, St. Joseph, IN

Built 1970 ADT: 463

JOHNSON RD

Over: MAIN ST

00.50 SW US 20, St. Joseph, IN

Built 2016 ADT: 1,000

SR 4

Over: POTATO CREEK

01.36 W SR 23, St. Joseph, IN

Built 1985 Load: 22.0 t ADT: 1,544

SAMPLE St

Over: ST. JOSEPH River

00.10 N of SR 933, St. Joseph, IN

Built 1900 Load: 25.7 t ADT: 4,999

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

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 5, 2026