Miami County, OH

315 public highway bridges

Miami County Bridge Snapshot

Miami County, Ohio contains 315 public highway bridges in the FHWA National Bridge Inventory. Roughly 64.4% are rated “Good,” 19.4% “Fair,” 7% “Poor,” and 7% 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 OH 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.

315

Total Bridges

64.4%

Good

7%

Poor

7%

Structurally Deficient

Condition Distribution

Good

64.4% (203)

Fair

19.4% (61)

Poor

7% (22)

SD

7% (22)

All Bridges (315)

Sort:

USR-36

Over: USR 36

JCT.IR-75, Miami, OH

Built 1965 ADT: 51,305

USR-36

Over: USR 36

JCT. IR-75, Miami, OH

Built 1958 ADT: 51,305

SR-41

Over: SR 41

JCT. IR-75, Miami, OH

Built 1957 ADT: 67,893

SR-55

Over: SR 55

JCT. IR-75, Miami, OH

Built 1968 ADT: 67,893

SR-55

Over: SR 55

JCT.IR-75, Miami, OH

Built 1957 ADT: 71,813

IR-75

Over: IR 75

.43MI.N. OF MONTGOMERY CO, Miami, OH

Built 1956 ADT: 1,023

IR-75

Over: IR 75

.43MI.N. OF MONTGOMERY CO, Miami, OH

Built 1956 ADT: 1,023

SHOOP ROAD

Over: TR 222 SHOOP ROAD

1.01MI.N.OF MONTGOMERY CO, Miami, OH

Built 1962 ADT: 82,809

EVANSTON ROAD

Over: CR 150 EVANSTON ROAD

1.11MI.S. OF JCT. SR-571, Miami, OH

Built 1962 ADT: 82,809

COUNTY RD. 25-A

Over: CR 25A DAYTON-TROY ROAD

1.78MI.N. OF JCT. SR-571, Miami, OH

Built 1957 ADT: 76,894

PETERS ROAD

Over: PETERS ROAD

1.5 MI N OF CR 25A, Miami, OH

Built 2000 ADT: 71,813

SWAILES ROAD

Over: SWAILES ROAD CR 137

2.41MI N.OF 25A RAMP, Miami, OH

Built 2002 ADT: 71,813

MCKAIG ROAD

Over: MCKAIG ROAD

1.0 MI N OF SR 55, Miami, OH

Built 2000 ADT: 67,893

ELDEAN RD. CR-33

Over: CR 33 ELDEAN RD

1.75MI.N. OF JCT. SR-41, Miami, OH

Built 2004 ADT: 58,420

PIQUA-TROY RD

Over: IR 75

2.99MI.S. OF JCT. USR-36, Miami, OH

Built 2017 ADT: 53,833

STATLER RD. CR-18

Over: CR 18 STATLER ROAD

1.03MI.S. OF JCT. USR-36, Miami, OH

Built 2017 ADT: 53,833

IR-75

Over: IR 75

.52MI.S. OF JCT. USR-36, Miami, OH

IR-75

Over: IR 75

.52 MI. S. OF JCT. US36, Miami, OH

IR 75

Over: IR 75

.37MI.S. OF JCT USR-36, Miami, OH

Built 2013 ADT: 8,545

IR-75

Over: IR-75

.37MI.S. OF JCT. USR-36, Miami, OH

Built 2013 ADT: 8,545

IR-75

Over: SB IR-75

.87MI.N. OF JCT. USR-36, Miami, OH

Built 1959 ADT: 52,490

IR-75

Over: NB IR-75

.87MI.N. OF JCT. USR-36, Miami, OH

Built 1959 ADT: 52,490

IR-75

Over: IR 75

1.05MI.N. OF JCT. USR-36, Miami, OH

Built 1959 ADT: 5,435

IR-75

Over: IR 75

1.05MI.N. OF JCT. USR-36, Miami, OH

Built 1959 ADT: 5,435

MIAMI-SHELBY RD.

Over: CR 6 MIAMI-SHELBY ROAD

MIAMI-SHELBY COUNTY LINE, Miami, OH

Built 1959 ADT: 52,490

SR-571

Over: SR 571

JCT. IR-75, Miami, OH

Built 1955 ADT: 82,809

SR718

Over: SR718

SR718 OVER IR75, Miami, OH

Built 2001 ADT: 63,273

IR 75

Over: IR 75

3.57MI.S. OF JCT. USR-36, Miami, OH

Built 2015 ADT: 7,029

IR 75

Over: IR 75

3.57MI.S. OF JCT. USR-36, Miami, OH

Built 2016 ADT: 7,039

FARVER

Over: GREAT MIAMI RIVER

0.15 E OF CR25A, Miami, OH

Built 1860 Load: 9.7 t ADT: 324

MIAMI-SHELBY EAST

Over: BRANCH RUSH CREEK

0.33 E OF CR14, Miami, OH

Built 1959 Load: 13.0 t ADT: 419

RANGE LINE

Over: HARRIS CREEK

0.62 N OF CR88, Miami, OH

Built 1963 Load: 13.0 t ADT: 1,030

EMERICK

Over: SEEKER DITCH

0.02 E OF TR54, Miami, OH

Built 1959 Load: 13.0 t ADT: 731

RANGE LINE

Over: PANTHER CREEK

0.26 N OF CR79, Miami, OH

Built 1963 Load: 16.2 t ADT: 899

ELLEMAN

Over: LUDLOW CREEK

0.91 N OF SR571, Miami, OH

Built 1961 Load: 16.2 t ADT: 797

JONES

Over: LUDLOW JOINT DITCH

0.45 N OF SR571, Miami, OH

Built 1956 Load: 16.2 t ADT: 324

PATTY-CIRCLE HILL

Over: PANTHER CREEK

0.05 S OF CR79, Miami, OH

Built 1955 Load: 16.2 t ADT: 385

PERRY

Over: TROTTERS CREEK

0.14 E OF CR261, Miami, OH

Built 1960 Load: 16.2 t ADT: 485

SNYDER

Over: SPRING CREEK

0.50 E OF CR20, Miami, OH

Built 1954 Load: 16.2 t ADT: 351

CHURCH ST

Over: GUSTIN DITCH

0.05 N OF USR36, Miami, OH

Built 1959 Load: 19.4 t ADT: 477

LOSTCREEK-SHELBY

Over: EAST BRANCH LOST CREEK

0.65 N OF CR17, Miami, OH

Built 1954 Load: 19.4 t ADT: 164

HETZLER

Over: RUSH CREEK

0.77 N OF CR25A, Miami, OH

Built 1955 Load: 19.4 t ADT: 2,227

STONYRIDGE AVENUE

Over: KIDDER DITCH

803 STONYRIDGE AT KIDDER, Miami, OH

Built 1965 Load: 20.4 t ADT: 2,283

STONYRIDGE AVENUE

Over: DEWEESE DITCH

1158 STONYRIDGE AVENUE, Miami, OH

Built 1977 Load: 20.4 t ADT: 3,348

SR-48

Over: OLD CHAN TROTTERS CREEK

.86MI.N. OF JCT. SR-185, Miami, OH

Built 1963 Load: 21.4 t ADT: 2,943

IR-75

Over: ABANDONED RR

3.19MI.N. OF JCT.SR-41, Miami, OH

Built 1957 Load: 22.7 t ADT: 23,381

BRADFORD-BLOOMER

Over: BALLINGERS RUN

0.25 N OF CR88, Miami, OH

Built 1929 Load: 22.7 t ADT: 637

PIQUA-LOCKINGTON

Over: FLOOD CHANNEL MIAMI RIVE

0.18 N OF TR202, Miami, OH

Built 1936 Load: 24.5 t ADT: 1,373

SR589

Over: BR SMITH DITCH 355

.6 MI. N.OF JCT. SR55, Miami, OH

Built 1966 Load: 24.6 t ADT: 1,662

RIKE

Over: TROTTERS CREEK

0.16 E OF SR48, Miami, OH

Built 1969 Load: 25.9 t ADT: 63

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