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)

MISHAWAKA:MAIN St

Good

Over: JUDAY Creek

00.50 S of DOUGLAS Rd, St. Joseph, IN

Built 1991 Load: 37.2 t ADT: 22,363

US 31 SB

Good

Over: SHIDELER HOFFMAN DITCH

00.30 S SR 4, St. Joseph, IN

Built 2014 Load: 37.3 t ADT: 13,078

WINDING BROOK Dr

Good

Over: JUDAY Creek

00.40 N of DAY Rd, St. Joseph, IN

Built 1970 Load: 38.8 t ADT: 206

SR 4

Good

Over: BUNCH DITCH

00.16 E NEW US 31, St. Joseph, IN

Built 2013 Load: 38.9 t ADT: 785

SR 331

Good

Over: YELLOW RIVER

02.45 N US 6, St. Joseph, IN

Built 1984 Load: 38.9 t ADT: 5,382

SR 4

Good

Over: SHIDELER HOFFMAN DITCH

00.20 W JCT US 31, St. Joseph, IN

Built 2013 Load: 39.5 t ADT: 785

IRONWOOD Rd

Good

Over: JUDAY Creek

00.10 N of DOUGLAS Rd, St. Joseph, IN

Built 2022 Load: 40.2 t ADT: 16,758

UNDERWOOD ROAD

Good

Over: PINE CREEK

00.30 W of SPRUCE ROAD, St. Joseph, IN

Built 2019 Load: 41.1 t ADT: 513

SB EDISON LK Pkwy

Good

Over: JUDAY Creek

00.30 E of MAIN St, St. Joseph, IN

Built 1990 Load: 41.2 t ADT: 2,674

TYLER ROAD

Good

Over: YELLOW BANK CREEK

00.80 E SR 23, St. Joseph, IN

Built 2012 Load: 42.2 t ADT: 213

SYCAMORE Rd

Good

Over: POTATO Creek

00.10 S of OSBORNE Rd, St. Joseph, IN

Built 1998 Load: 42.3 t ADT: 83

WALNUT ROAD

Good

Over: YELLOW BANK CREEK

00.40 N of SR 23, St. Joseph, IN

Built 2020 Load: 45.6 t ADT: 599

SR 933

Good

Over: JUDAY CREEK

00.03 S I-90, St. Joseph, IN

Built 1995 Load: 46.3 t ADT: 25,652

YORK St

Good

Over: LEONARD Ditch

00.10 W of OAKSIDE Ave., St. Joseph, IN

Built 2008 Load: 47.2 t ADT: 162

SR 331

Good

Over: ST JOSEPH RIVER

00.12 N SR 933, St. Joseph, IN

Built 1986 Load: 48.6 t ADT: 22,461

SR 331

Good

Over: WILLOW CREEK

03.59 N US 20, St. Joseph, IN

Built 2006 Load: 52.2 t ADT: 23,899

US 20 WB, US 31 NB

Good

Over: NS RR (NEW ENERGY SPUR)

00.68 W SR 23, St. Joseph, IN

Built 2003 Load: 57.7 t ADT: 17,896

SR 331

Good

Over: GRIMES DITCH

04.86 S SR 933, St. Joseph, IN

Built 2011 Load: 57.7 t ADT: 6,583

US 20 EB, US 31 SB

Good

Over: NS RR (NEW ENERGY SPUR)

00.68 W SR 23, St. Joseph, IN

Built 2003 Load: 74.2 t ADT: 17,227

SHIVELY Rd

Poor

Over: KLINE Ditch

00.30 E of MIAMI Hwy, St. Joseph, IN

Built 1935 Load: 18.0 t ADT: 242

QUINN Rd

Poor

Over: PINE Creek

00.30 W of WALNUT Rd, St. Joseph, IN

Built 1993 Load: 27.6 t ADT: 118

DARDEN Rd

Poor

Over: GEYER Ditch

00.50 E of TAMARACK Rd, St. Joseph, IN

Built 1971 Load: 28.0 t ADT: 157

ELM Rd

Poor

Over: GRIMES Ditch

00.10 S of MADISON Rd, St. Joseph, IN

Built 1979 Load: 29.6 t ADT: 1,207

MAYFLOWER ROAD

Poor

Over: CONRAIL RR

00.40 N OF FILLMORE ROAD, St. Joseph, IN

Built 1970 Load: 29.9 t ADT: 9,063

PEACH Rd

Poor

Over: PLACE Ditch

00.30 N of JACKSON Rd, St. Joseph, IN

Built 1971 Load: 30.5 t ADT: 391

HARRISON Rd

Poor

Over: GEYER Ditch

00.10 E of RUSH Rd, St. Joseph, IN

Built 1920 Load: 33.4 t ADT: 97

INWOOD Rd

Poor

Over: GEYER Ditch

00.60 E of TAMARACK Rd, St. Joseph, IN

Built 1925 Load: 33.9 t ADT: 176

WALNUT Rd

Structurally Deficient

Over: POTATO Creek

00.30 N of QUINN Rd, St. Joseph, IN

Built 1968 Load: 19.9 t ADT: 386

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