Miami County, OH

315 public highway bridges

Miami County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Miami County, Ohio contains 315 public highway bridges. Roughly 64.4% are rated “Good,” 19.4% “Fair,” and 7% “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.

315
Total Bridges
64.4%
Good
19.4%
Fair
7%
Poor Condition

Condition Distribution

Good
64.4% (203)
Fair
19.4% (61)
Poor
7% (22)

All Bridges (315)

DITMER

Good

Over: LUDLOW CREEK

1.10 N OF CR45, Miami, OH

Built 1971 Load: 22.7 t ADT: 385

IR-75

Good

Over: GREAT MIAMI RIVER

3.44MI.S. OF JCT. USR-36, Miami, OH

Built 1958 Load: 24.3 t ADT: 23,381

SR-66

Good

Over: SWIFT RUN

2.04 MI. S. OF SHELBY CO., Miami, OH

Built 1960 Load: 24.6 t ADT: 4,672

SR-202

Good

Over: LOST CREEK

1.91MI.S. OF JCT. SR-41, Miami, OH

Built 1955 Load: 24.6 t ADT: 3,264

SR-48

Good

Over: STILLWATER RIVER

1.68MI.S. OF JCT. SR-718, Miami, OH

Built 1961 Load: 24.9 t ADT: 2,400

SR-55

Good

Over: WEST BR.OF PETERS CREEK

.9MI.W. OF JCT. IR-75, Miami, OH

Built 1968 Load: 25.9 t ADT: 6,881

SR-185

Good

Over: TROTTERS CREEK

.15MI.W. OF JCT. SR-48, Miami, OH

Built 1963 Load: 25.9 t ADT: 2,844

SR-201

Good

Over: HONEY CREEK

.57MI. N O F JCT. SR-571, Miami, OH

Built 1963 Load: 25.9 t ADT: 1,661

SR-721

Good

Over: HOG RUN

.61MI.S. OF JCT. SR-571, Miami, OH

Built 1968 Load: 25.9 t ADT: 1,189

LOSTCREEK-SHELBY

Good

Over: EAST BRANCH LOST CREEK

0.91 N OF CR17, Miami, OH

Built 1984 Load: 25.9 t ADT: 164

SR-721

Good

Over: LUDLOW CREEK

1.9MI.S. OF JCT. SR-55, Miami, OH

Built 1961 Load: 27.2 t ADT: 642

SR-48

Good

Over: TROTTERS CREEK

1.37MI.N. OF JCT. USR-36, Miami, OH

Built 1963 Load: 28.2 t ADT: 4,362

I-75 RAMP

Good

Over: PETER'S CREEK

RAMP SR-55 TO NB 75, Miami, OH

Built 2002 Load: 29.2 t ADT: 4,042

IR-75

Good

Over: ABANDONED RR

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

Built 1957 Load: 29.2 t ADT: 23,381

IR-75

Good

Over: B & O RR

2.15MI. S. OF JCT. USR-36, Miami, OH

Built 1958 Load: 29.2 t ADT: 22,249

IR-75

Good

Over: B & O RR

2.15MI.S. OF JCT. USR-36, Miami, OH

Built 1958 Load: 29.2 t ADT: 22,249

SR589

Good

Over: BRANCH LOST CREEK

2.3 MI. S.OF JCT.USR36, Miami, OH

Built 1966 Load: 29.2 t ADT: 1,662

SR-718

Good

Over: STILLWATER RIVER

1.22MI.W. OF JCT. SR-48, Miami, OH

Built 1964 Load: 29.2 t ADT: 1,814

SNYDER

Good

Over: LEATHERWOOD DITCH

0.30 E OF CR26, Miami, OH

Built 1995 Load: 29.2 t ADT: 797

GEISERMAN EAST

Good

Over: RUSH CREEK

0.10 W OF TR259, Miami, OH

Built 1988 Load: 29.2 t ADT: 983

SR-41

Good

Over: INDIAN CREEK

0.59 MI. W. OF CLARK CO., Miami, OH

Built 1986 Load: 30.8 t ADT: 2,176

SR-571

Good

Over: BRUSH CREEK

2.29MI.W. OF JCT. SR-48, Miami, OH

Built 1982 Load: 31.1 t ADT: 5,649

USR-36

Good

Over: FORK OF LOSTCREEK

.26MI.W. OF JCT. SR-589, Miami, OH

Built 1984 Load: 32.4 t ADT: 4,645

SR-41

Good

Over: LOST CREEK

1.34 MI.E. OF SR.201, Miami, OH

Built 2002 Load: 32.4 t ADT: 3,413

SR - 41

Good

Over: TRIB STILLWATER RIVER

.28MI. SE OF JCT. SR-48, Miami, OH

Built 1991 Load: 32.4 t ADT: 8,682

SR 48

Good

Over: LUDLOW FALLS

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

Built 2001 Load: 32.4 t ADT: 3,347

SR-55

Good

Over: STILLWATER RIVER

1.06MI.E. OF JCT. SR-48, Miami, OH

Built 1984 Load: 32.4 t ADT: 6,881

SR-55

Good

Over: PETERS CREEK

.27MI.E. OF JCT. IR-75, Miami, OH

Built 1968 Load: 32.4 t ADT: 5,088

SR-55

Good

Over: PETERS CREEK

.27MI.E. OF JCT. IR-75, Miami, OH

Built 1968 Load: 32.4 t ADT: 5,088

IR 75

Good

Over: EXT OF BOONE CREEK

1.39 MILES S OF JCT 55, Miami, OH

Built 2001 Load: 32.4 t ADT: 66,840

IR-75

Good

Over: CLAYTON EXT. OF PETERS C

.71MI.S. OF JCT. SR-55, Miami, OH

Built 1957 Load: 32.4 t ADT: 66,840

IR-75

Good

Over: BRANCH GREAT MIAMI RIVER

1.78MI.N.OF JCT. SR-41, Miami, OH

Built 1957 Load: 32.4 t ADT: 54,110

IR-75

Good

Over: HOWELL EXTENSION DITCH

2.83MI.N. OF JCT. SR-41, Miami, OH

Built 1957 Load: 32.4 t ADT: 54,110

SR-185

Good

Over: STILLWATER RIVER

1.6MI.E. OF DARKE COUNTY, Miami, OH

Built 1963 Load: 32.4 t ADT: 2,844

SR-718

Good

Over: PETERS CREEK

.95MI.W. OF JCT. SR-55, Miami, OH

Built 1993 Load: 32.4 t ADT: 3,244

C0006A BOLLINGER

Good

Over: LOST CREEK DITCH

0.01 MI S OF US RTE 36, Miami, OH

Built 2002 Load: 32.4 t ADT: 678

SCARFF

Good

Over: HONEY CREEK

0.17 N OF SR571, Miami, OH

Built 1973 Load: 32.4 t ADT: 604

RANGE LINE

Good

Over: LUDLOW CREEK

0.07 S OF SR55, Miami, OH

Built 1973 Load: 32.4 t ADT: 473

LEFEVRE

Good

Over: LOST CREEK

0.04 W OF CR158, Miami, OH

Built 1981 Load: 32.4 t ADT: 474

LEFEVRE

Good

Over: INDIAN CREEK

0.35 E OF CR26, Miami, OH

Built 1985 Load: 32.4 t ADT: 454

PETERSON

Good

Over: SPRING CREEK

0.67 E OF CR184, Miami, OH

Built 1993 Load: 32.4 t ADT: 383

CASSTOWN-SIDNEY

Good

Over: SPRING CREEK

0.63 N OF CR197, Miami, OH

Built 1988 Load: 32.4 t ADT: 366

CR25A

Good

Over: BOONE CREEK

0.66 N. OF CR39A, Miami, OH

Built 2001 Load: 32.4 t ADT: 11,310

CR25A

Good

Over: TROY-CONCORD DITCH

0.32 S. OF CR137, Miami, OH

Built 2001 Load: 32.4 t ADT: 11,310

CR25A

Good

Over: MIAMI RIVER

0.18 S OF CR199, Miami, OH

Built 1950 Load: 32.4 t ADT: 10,179

C26-Alcony-Conover

Good

Over: INDIAN CREEK

0.19 MI N. OF CR 164, Miami, OH

Built 1999 Load: 32.4 t ADT: 891

ECHO LAKE DRIVE

Good

Over: HYDRAULIC CANAL

0.90 E OF TR113, Miami, OH

Built 1992 Load: 32.4 t ADT: 1,127

VERSAILLES

Good

Over: BRANCH TROTTERS CREEK

0.89 E OF CR9, Miami, OH

Built 1960 Load: 32.4 t ADT: 567

EXPERIMENT FARM

Good

Over: HOWELL DITCH

0.87 N OF CR 33, Miami, OH

Built 1994 Load: 32.4 t ADT: 2,950

FREDERICK-GARLAND

Good

Over: SEEKER DITCH

0.43 E OF SR721, Miami, OH

Built 1989 Load: 32.4 t ADT: 900

Read our methodology - how this data is sourced, computed, and verified.

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

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.