Mercer County, OH

329 public highway bridges

Mercer County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Mercer County, Ohio contains 329 public highway bridges. Roughly 41.3% are rated “Good,” 55.9% “Fair,” and 2.7% “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.

329
Total Bridges
41.3%
Good
55.9%
Fair
2.7%
Poor Condition

Condition Distribution

Good
41.3% (136)
Fair
55.9% (184)
Poor
2.7% (9)

All Bridges (329)

SCHROEDER ROAD

Good

Over: CRAB BRANCH

0.1 MI W WABASH ROAD, Mercer, OH

Built 2012 Load: 48.6 t ADT: 69

US. 127

Good

Over: TWELVE MILE CREEK

1.9MI S. OF JCT US33, Mercer, OH

Built 2009 Load: 48.9 t ADT: 3,665

RAUH RD

Good

Over: CRAB BRANCH

0.1 MI N ST ANTHONY RD, Mercer, OH

Built 2023 Load: 49.2 t ADT: 351

FOX RD

Good

Over: Branch of Fort Creek

1.08 mi. E. of stateline, Mercer, OH

Built 2014 Load: 51.8 t ADT: 238

OREGON ROAD

Good

Over: TWELVE MILE CREEK

0.1 MI W WEITZ ROAD, Mercer, OH

Built 2019 Load: 51.8 t ADT: 240

Wabash Rd

Good

Over: MC DOWELL RUN

0.5 MI N PHILOTHEA ROAD, Mercer, OH

Built 2017 Load: 51.8 t ADT: 984

SR-49

Good

Over: DUCK CREEK DITCH #75-84

1.4MI. N. OF JCT. SR-707, Mercer, OH

Built 1998 Load: 52.5 t ADT: 941

TOWNSHIPLINE T61

Good

Over: LITTLE BLACK CREEK

0.44 MI S OF SR707, Mercer, OH

Built 2007 Load: 55.1 t ADT: 143

Philothea

Good

Over: BURNTWOOD CREEK

0.3 MI W COLDWATER CR RD, Mercer, OH

Built 2016 Load: 55.1 t ADT: 364

NEPTUNE MENDON RD

Good

Over: EIGHT MILE CREEK

0.1 MI N BOGART, Mercer, OH

Built 2012 Load: 55.1 t ADT: 133

HOENIE ROAD

Good

Over: TWELVE MILE CREEK

0.3 MI S OREGON ROAD, Mercer, OH

Built 2012 Load: 55.1 t ADT: 315

SR-219

Good

Over: LITTLE CHICKASAW CREEK

.04MI.W.OF AUGLAIZE CO., Mercer, OH

Built 2010 Load: 57.0 t ADT: 1,425

WILSON ROAD

Good

Over: LITTLE BLACKCREEK

0.1 MI E ERASTUS DURDIN, Mercer, OH

Built 2013 Load: 58.3 t ADT: 139

C80A CLOVER FOUR

Good

Over: BEAVER CREEK

0.83 MI E OF US127, Mercer, OH

Built 2010 Load: 58.3 t ADT: 887

WINKLER ROAD

Good

Over: LITTLE BLACKCREEK

0.4 MI W JORDAN ROAD, Mercer, OH

Built 2013 Load: 64.8 t ADT: 94

SR-49

Good

Over: DUCK CREEK

1.78 MI.S.VAN WERT CO.LN, Mercer, OH

Built 2007 Load: 65.4 t ADT: 941

SR-49

Good

Over: DUCK CREEK

1.52 MI.S.VAN WERT CO. LN, Mercer, OH

Built 2007 Load: 65.8 t ADT: 941

SR29

Good

Over: SHERMAN DITCH

.47 MI. E. OF IN. ST LINE, Mercer, OH

Built 2008 Load: 69.3 t ADT: 1,899

WINKLER RD

Good

Over: DUCKCREEK

0.2 MI E ST RT 49, Mercer, OH

Built 2018 Load: 71.3 t ADT: 406

WAYNE ST.

Good

Over: WABASH RIVER

0.1 MI NORTH S.R. 49, Mercer, OH

Built 2001 Load: 77.8 t ADT: 1,357

PALMER ROAD

Poor

Over: ST MARYS RIVER

N OF SR707 0.8 MI, Mercer, OH

Built 1994 Load: 12.7 t ADT: 220

SIEGRIST JUTTE RD

Poor

Over: WABASH RIVER

0.2 MI E ST RT 49, Mercer, OH

Built 1987 Load: 12.7 t ADT: 1,194

JOHNSTON ROAD

Poor

Over: STREAM

0.1 MI S COLDWATER CREEK, Mercer, OH

Built 1990 Load: 25.9 t ADT: 210

ROCKFORD WEST ROAD

Poor

Over: BIG BLACKCREEK

0.1 MI E WABASH ROAD, Mercer, OH

Built 1985 Load: 32.4 t ADT: 272

SHARPSBURG ROAD

Poor

Over: BRANCH OF WABASH RIVER

1/2 MI NW OF SHARPSBURG, Mercer, OH

Built 1965 Load: 32.4 t ADT: 723

WABASH ROAD

Poor

Over: BIG BLACK CREEK

0.2 MI S OREGON ROAD, Mercer, OH

Built 1967 Load: 32.4 t ADT: 70

HUWER ROAD

Poor

Over: BR OF MILE CREEK

E OF US 127 1.1 MI, Mercer, OH

Built 1993 Load: 32.4 t ADT: 235

OLDING ROAD

Poor

Over: BEAVER CREEK

0.2 MI E US 127, Mercer, OH

Built 1979 Load: 32.4 t ADT: 267

ERASTUS DURBIN RD

Poor

Over: BIG RUN

0.6 MI S PINE ROAD, Mercer, OH

Built 1911 Load: 55.1 t ADT: 172

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.