Union County, OH

221 public highway bridges

Union County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Union County, Ohio contains 221 public highway bridges. Roughly 58.8% are rated “Good,” 26.2% “Fair,” and 0.9% “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.

221
Total Bridges
58.8%
Good
26.2%
Fair
0.9%
Poor Condition

Condition Distribution

Good
58.8% (130)
Fair
26.2% (58)
Poor
0.9% (2)

All Bridges (221)

US 36

Fair

Over: MILL CREEK

1.3 MI W OF C-113, Union, OH

Built 1950 Load: 31.1 t ADT: 18,155

SR 38

Fair

Over: LITTLE DARBY CREEK

0.22MI N OF MADISONCOLINE, Union, OH

Built 1969 Load: 31.8 t ADT: 3,067

SR 161

Fair

Over: OVER ABAND. CSX RR

2.04 MI W OF US 33, Union, OH

Built 1971 Load: 31.8 t ADT: 4,168

SR-4

Fair

Over: TREACLE CREEK

0.57 MI S. OF SR161, Union, OH

Built 1974 Load: 32.4 t ADT: 4,506

SR 31

Fair

Over: OVER BOKES CREEK

OVER BOKES CREEK, Union, OH

Built 1975 Load: 32.4 t ADT: 5,396

US 33

Fair

Over: FLAT BRANCH (CLOSED)

ABANDONED US 33, Union, OH

Built 1962 Load: 32.4 t ADT: 2

SR 37

Fair

Over: BOKES CREEK

2.14 MI S OF SR 4, Union, OH

Built 1982 Load: 32.4 t ADT: 836

SR 161

Fair

Over: LITTLE DARBY CREEK

2.76 MI E OF CHAMPAIGN, Union, OH

Built 1963 Load: 32.4 t ADT: 1,461

S.R. 245

Fair

Over: E BUCK RUN

2.74 MI W OF US 33, Union, OH

Built 1954 Load: 32.4 t ADT: 2,965

SR 736

Fair

Over: ROBINSON RUN

1.16 MI N OF US42, Union, OH

Built 1971 Load: 32.4 t ADT: 2,048

TR 540A CORP BLVD

Fair

Over: KILE DITCH

0.17 MI E OF INDUST PKWY, Union, OH

Built 2000 Load: 32.4 t ADT: 719

C21 LAFAYET PL CTY

Fair

Over: BRANCH BIG DARBY

0.7 MI SOUTH of SR161, Union, OH

Built 1930 Load: 32.4 t ADT: 809

TR 70 A BOERGER RD

Fair

Over: BRANCH BUCK RUN

0.8 MI EAST of SR 4, Union, OH

Built 1930 Load: 32.4 t ADT: 327

C107F SPRINGDALE

Fair

Over: BLUES CREEK

1.3 MI NORTH of SR 36, Union, OH

Built 1988 Load: 32.4 t ADT: 257

C107A SPRINGDALE

Fair

Over: DUNS RUN BRANCH MILL CRK

1.2 MI SOUTH of SR 36, Union, OH

Built 1930 Load: 32.4 t ADT: 257

C93C SMART-COLE RD

Fair

Over: POUNDS DITCH

1.3 MI NORTH OF SR42, Union, OH

Built 1998 Load: 32.4 t ADT: 383

C134F PAVER BARNES

Fair

Over: OTTER RUN

2.2 MI N. of NORTHWEST PK, Union, OH

Built 1930 Load: 32.4 t ADT: 298

C136D DOG LEG RD

Fair

Over: OTTER RUN

2.4 MI NORTH of RAYMOND R, Union, OH

Built 1972 Load: 32.4 t ADT: 143

TR146A BUCK RUN RD

Fair

Over: BIG DARBY

0.25MI N of MIDDLEB-PC RD, Union, OH

Built 2007 Load: 32.4 t ADT: 806

C213B FORD REED RD

Fair

Over: BOKES CREEK

1.018 MI. NORTH OF SR347, Union, OH

Built 2003 Load: 32.4 t ADT: 446

C262F KINNEY PIKE

Fair

Over: FULTON CREEK

1.5 MI. N OF CR 200, Union, OH

Built 1990 Load: 32.4 t ADT: 295

C289B PWDR LICK RD

Fair

Over: POWDER LICK CREEK

1.25 MI EAST of SR739, Union, OH

Built 1974 Load: 32.4 t ADT: 384

CR292B JANUARY RD

Fair

Over: BRANCH BOKES CREEK

0.47 MI. NORTH SR 47, Union, OH

Built 1974 Load: 32.4 t ADT: 80

C163B INSKEEP-CRTY

Fair

Over: BRANCH OF BIG DARBY

0.5 MI NORTH of SR 245, Union, OH

Built 1972 Load: 32.4 t ADT: 430

C149A BEAR SWAMP

Fair

Over: BRANCH OF BUCK RUN

0.3 MI SOUTH OF CR 133, Union, OH

Built 1920 Load: 32.4 t ADT: 316

CR222 C YEARS

Fair

Over: BRUSH RUN

2.5 MI NORTH of SR347, Union, OH

Built 1971 Load: 32.4 t ADT: 451

USR 42

Fair

Over: ROBINSON RUN

0.32 MI N OF SR 735, Union, OH

Built 1982 Load: 33.7 t ADT: 8,156

SR 4

Fair

Over: OTTAWA CREEK

2.22 MI. N. OF SR37, Union, OH

Built 1970 Load: 34.3 t ADT: 4,817

CR113D WHITESTONE

Fair

Over: BLUES CREEK

0.25MI N of LEEPER-PERKIN, Union, OH

Built 2000 Load: 35.6 t ADT: 460

US 33

Fair

Over: FLAT BRANCH

0.43 MI S OF SR739, Union, OH

Built 1987 Load: 37.9 t ADT: 15,485

S.R. 245

Fair

Over: W BUCK RUN

4.05 MI W OF US 33, Union, OH

Built 1956 Load: 38.9 t ADT: 2,965

C135A DOVER-COUNTY

Fair

Over: DUNS RUN BRANCH MILL CRK

1.5 MI EAST of SR 36, Union, OH

Built 1976 Load: 39.5 t ADT: 160

CR23A CONVERSE RD

Fair

Over: BIG DARBY

0.3 MI EAST of PLAIN CITY, Union, OH

Built 1983 Load: 42.1 t ADT: 431

US 33

Fair

Over: FLAT BRANCH

0.43MI S OF SR739, Union, OH

Built 1987 Load: 44.4 t ADT: 15,485

C87A AXE HANDLE RD

Fair

Over: LITTLE DARBY

0.04 MI N of SR161, Union, OH

Built 1870 Load: 45.4 t ADT: 320

CR 264 A TAWA RD

Fair

Over: OTTAWA CREEK

0.75 MI WEST of SR 4, Union, OH

Built 1971 Load: 45.4 t ADT: 285

US 42

Fair

Over: SUGAR RUN CREEK

1.2 MI S. OF OLD US33, Union, OH

Built 1985 Load: 54.4 t ADT: 8,156

C46B HAGENDERFER

Fair

Over: ROBINSON RUN

0.5 MI SW of SR 736, Union, OH

Built 1974 Load: 77.8 t ADT: 318

CR343A YOAKUM RD

Fair

Over: RUSH CREEK

1.3MI E of SR31, Union, OH

Built 1969 Load: 77.8 t ADT: 132

C129E WOLFORD MASK

Good

Over: BLUES CREEK

1.5 MI SOUTH of SR 347, Union, OH

Built 1969 Load: 13.0 t ADT: 1,102

USR 36

Good

Over: OVER DUN RUN

1.5MI.WEST OF DEL.CO.LINE, Union, OH

Built 1994 Load: 19.4 t ADT: 5,681

CR 81 CONNER RD

Good

Over: FARRINGTON DITCH

1.5 MI WEST of SR 4, Union, OH

Built 1970 Load: 19.4 t ADT: 160

CR 33 F TAYLOR RD

Good

Over: SUGAR RUN

0.5 MI W. of INDUSTRIAL P, Union, OH

Built 1974 Load: 19.4 t ADT: 1,084

C236A COTTON SLASH

Good

Over: MILL CREEK

2 MI SW of SR 31, Union, OH

Built 1997 Load: 19.4 t ADT: 650

C191I RAYMOND RD

Good

Over: OTTER RUN

2 MI NORTH of MARYSVILLE, Union, OH

Built 1979 Load: 19.4 t ADT: 1,367

SR 736

Good

Over: ROBINSON RUN

0.62 MI N OF US42, Union, OH

Built 1964 Load: 25.6 t ADT: 2,100

SR 31

Good

Over: RUSH CREEK

0.02 MI. S. HARDIN CO LIN, Union, OH

Built 2006 Load: 25.9 t ADT: 4,868

C310 HOOVER-MOFFIT

Good

Over: BOKES CREEK

0.7 MI NORTH of SR 47, Union, OH

Built 2009 Load: 25.9 t ADT: 399

C196B MACKLIN RD

Good

Over: BLUES CREEK

0.1 MI WEST of SR 4, Union, OH

Built 1970 Load: 25.9 t ADT: 126

C199E SANDUSKY RD

Good

Over: BOKES CREEK

0.85 MI NORTH OF SR 347, Union, OH

Built 1999 Load: 29.2 t ADT: 403

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.