County profile · official public datasets

Washington County, OH

309 public highway bridges tracked in the FHWA National Bridge Inventory: 61.2% rated Good, 32.4% Fair, 6.5% Poor.

309
Public bridges
61.2%
Good condition
6.5%
Poor condition

The verdict

According to the Federal Highway Administration's 2024 National Bridge Inventory.

Washington County posts a higher-than-median Poor-condition share among rated counties in the state across mid-size county bridge inventory.

61st
of 88 on Poor share
6.5%
Poor-condition share
309
public highway bridges
1974
avg year built

Poor is an FHWA condition category from the lowest applicable component rating (4 or below), not a live crossing-safety or closure decision. Rankings cover counties with at least five public highway bridges.

Washington County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Washington County ranks #61 of 88 Ohio counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 6.5%). Washington County, Ohio contains 309 public highway bridges. Roughly 61.2% are rated “Good,” 32.4% “Fair,” and 6.5% “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.

Total bridges

309

Public highway bridges in Washington County

Good condition

61.2%

189 of 309 rated 7-9

Fair condition

32.4%

100 of 309 rated 5-6

Poor condition

6.5%

20 of 309 rated 4 or below

In-state Poor-share rank

#61 of 88

Among Ohio counties with 5+ bridges, lower share ranks better

Condition distribution

Share of 309 NBI-tracked bridges by lowest applicable component rating.

Good
61.2% (189)
Fair
32.4% (100)
Poor
6.5% (20)

Washington County's Poor-condition bridges carry 26,457 vehicle crossings a day

That is 4% of the county's reported daily bridge traffic on 6.2% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 1,392 crossings a day against 1,812 for a Good-condition one. A Poor rating is a condition category, not a closure or a live safety judgement; it means the lowest applicable component rating is 4 or below.

Computed over the 308 of 309 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

46.3% of Washington County's bridges have passed the 50-year mark

143 of the 309 bridges with a recorded construction year were built in 1974 or earlier. Age alone is not a defect: a well-maintained older bridge can rate Good, and 61.2% of this county's inventory does. Even so, this older cohort is the population from which future Poor ratings are drawn, which is why the age profile below matters alongside the condition split above.

Cutoff derives from the 2024 release year minus a 50-year design life. Source: FHWA National Bridge Inventory, 2024 release.

One structure carries 42.4% of the county's Poor-condition bridge traffic

MR-476 MEMORIAL TO over OHIO R. CSX KEEVER ST., built 1955, carries 11,215 vehicles a day, the most of any Poor-rated structure here. The county's Poor-condition exposure is concentrated rather than evenly spread, so the 20-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 26,457 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

When Washington County's bridges were built

309 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 1960s, when 61 of the county's bridges still in the inventory were built, which is 19.7% of those with a recorded year. That cohort is now 55 to 64 years old in the 2024 inventory. Its average build year (1974) matches the Ohio average (1977).

Source FHWA National Bridge Inventory (year built) As of 2024 NBI release

How Washington County compares with Ohio's closest counties by inventory size

The 5 Ohio counties nearest Washington County in number of bridges, with their condition splits. Its 6.5% Poor share is the 3rd-lowest of these 6. Its average build year of 1974 against a peer-group mean of 1978 is in line with the group.

Showing the 5 closest of 87 Ohio counties eligible for comparison.

Bridge inventory size and condition shares for Washington County and the 5 Ohio counties closest to it in inventory size
County Bridges Poor
Miami County 315 7%
Huron County 311 8%
Belmont County 310 5.2%
Athens County 309 6.8%
Washington County (this page) 309 6.5%
Ashtabula County 305 3.6%

Each share is of that county's own total tracked bridges; peers are the counties with 5 or more bridges whose inventory size is closest to Washington County's. Source: FHWA National Bridge Inventory, 2024 release.

Nationwide counties with similar inventory size or average build year

Two NBI-derived peer sets for Washington County, both outside Ohio so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside OH (309 bridges here).

Similar average build year

Nearest mean year-built outside OH (1974 here).

Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.

All 309 Good 189 Fair 100 Poor 20

All bridges (309)

IR 77

Good

Over: CR 375

4.73M N W.VA. STATE LINE, Washington, OH

Built 1965 Load: 34.0 t ADT: 7,711

IR 77

Good

Over: CR 375

4.73M N W.VA. STATE LINE, Washington, OH

Built 1965 Load: 34.0 t ADT: 7,711

USR 50

Good

Over: SR 618

0.85M W OF JCT SR 339, Washington, OH

Built 1964 Load: 34.3 t ADT: 15,419

COUNTY ROAD 3

Good

Over: PLUM RUN * NEEDHAM

1.7 MI EAST OF JCT SR339, Washington, OH

Built 2018 Load: 35.0 t ADT: 1,290

SR 26

Good

Over: LITTLE EIGHT MILE CREEK

3.53M N OF JCT CR 17, Washington, OH

Built 1988 Load: 35.6 t ADT: 716

COUNTY ROAD 4

Good

Over: RAINBOW CREEK * FERREBEE

9.44 MI NW OF JCT SR 7, Washington, OH

Built 2018 Load: 35.6 t ADT: 337

COUNTY ROAD 20

Good

Over: LONG RUN * COVEY#

4.37 NE OF JCT SR 7, Washington, OH

Built 1965 Load: 35.6 t ADT: 144

TR 36

Good

Over: LEITH RUN * WALKER GR

0.01 MI W OF JCT CO RD 9, Washington, OH

Built 2007 Load: 35.6 t ADT: 10

TOWNSHIP ROAD 12

Good

Over: FIFTEENMILE CK * MEYER

3 MI N OF INT OF CR 365, Washington, OH

Built 1956 Load: 35.6 t ADT: 18

TOWNSHIP ROAD 388

Good

Over: GOULS RUN * MITCHEL

1.66 MI E OF JCT SR 145, Washington, OH

Built 1980 Load: 35.6 t ADT: 209

TOWNSHIP ROAD 313

Good

Over: E FK DUCK CK * MITCHEL

.12 MI E OF JCT SR 145, Washington, OH

Built 1984 Load: 35.6 t ADT: 209

TOWNSHIP ROAD 470

Good

Over: S BR WOLK CK * BLOXHA

02 MI E OF JCT T108, Washington, OH

Built 1900 Load: 35.6 t ADT: 351

TOWNSHIP ROAD 110

Good

Over: HALFWAY RUN * OLIN

1.27 MI N OF JCT CR 126, Washington, OH

Built 1924 Load: 35.6 t ADT: 209

COUNTY ROAD 20

Good

Over: L MUSKINGUM * CORNERVILL

.01 MI SE OF JCT CO RD 9, Washington, OH

Built 2021 Load: 36.0 t ADT: 780

TOWNSHIP ROAD T150

Good

Over: STRAIGHT RUN * EPLE

AT THE INT OF T150 & T149, Washington, OH

Built 1989 Load: 36.0 t ADT: 96

PUTNAM STREET

Good

Over: MUSKINGUM R * PUTNAM BRG

Putnam Street Marietta C, Washington, OH

Built 2000 Load: 36.3 t ADT: 6,172

MAIN ST.

Good

Over: DUCK CR*LOWER MACKSBURG

.01 MI N OF JCT SR 821, Washington, OH

Built 2004 Load: 36.3 t ADT: 451

COUNTY ROAD 2

Good

Over: MILL BRANCH * HELFERDING

1.8 MI NW OF SR 7, Washington, OH

Built 2022 Load: 36.6 t ADT: 924

SR 7

Good

Over: LEITH RUN

0.15M S OF JCT CR 21, Washington, OH

Built 1960 Load: 37.3 t ADT: 4,265

SR 7

Good

Over: DANAS RUN

1.2M S OF JCT SR 807, Washington, OH

Built 1983 Load: 37.3 t ADT: 6,202

TOWNSHIP ROAD 115

Good

Over: E BR CATS CR*STENGLE AD

0.36 MI. E. OF CR-76, Washington, OH

Built 2010 Load: 38.2 t ADT: 209

SR 7

Good

Over: SR 618 WESTBOUND

JCT SR 618, Washington, OH

Built 1964 Load: 38.6 t ADT: 7,480

SR 60

Good

Over: BEAR CREEK

1.31M S OF JCT SR 530, Washington, OH

Built 1983 Load: 38.9 t ADT: 5,885

OLD S.R. 124

Good

Over: SAWYERS RUN

0.5 MI S LITTLE HOCKING, Washington, OH

Built 2011 Load: 38.9 t ADT: 797

COUNTY ROAD 25

Good

Over: BEAR RUN * GARRETT

5.81 MI N OF JCT SR 7, Washington, OH

Built 2015 Load: 38.9 t ADT: 216

COUNTY ROAD 206

Good

Over: WOLF CREEK PATTINS MILL

4.78 MI N OF JCT SR 555, Washington, OH

Built 1907 Load: 38.9 t ADT: 185

COUNTY ROAD 79

Good

Over: RAINBOW CREEK * HUCK

3.56 MI N OF JCT CO RD 4, Washington, OH

Built 2003 Load: 38.9 t ADT: 180

CR - 354

Good

Over: BR PAW PAW CK * MILLER L

0.55 MI N OF JCT CR-15, Washington, OH

Built 2007 Load: 38.9 t ADT: 64

TOWNSHIP ROAD 19

Good

Over: NEWELLS RUN * NEWLI

.87 MI N OF JCT SR 7, Washington, OH

Built 1948 Load: 38.9 t ADT: 82

T-331

Good

Over: REEDS RUN * BOYC

1mi N of CR42, Washington, OH

Built 1997 Load: 38.9 t ADT: 209

T-24

Good

Over: WHIPPLE RUN * DAVIS

3.79 MI E OF JCT SR-821, Washington, OH

Built 1976 Load: 38.9 t ADT: 209

TOWNSHIP ROAD 55

Good

Over: HALFWAY RUN SCHWENDERMAN

.05 MI W OF JCT 110, Washington, OH

Built 2023 Load: 38.9 t ADT: 80

TWP RD 287

Good

Over: TADPOLE CREEK * HARDIE D

0.74 MI N OF JCT TWP 51, Washington, OH

Built 2012 Load: 39.2 t ADT: 209

SR 555

Good

Over: LITTLE HOCKING RIVER

1.24M N OF JCT USR 50, Washington, OH

Built 1984 Load: 40.5 t ADT: 1,719

TOWNSHIP ROAD 364

Good

Over: WINGETT RUN * JONES FD

0.01 MI W OF JECT TWP 64, Washington, OH

Built 2023 Load: 40.5 t ADT: 30

T-0039

Good

Over: S WOLF CREEK * BELL RD

2.47 MI NW SR 339, Washington, OH

Built 2022 Load: 41.1 t ADT: 116

SR 60

Good

Over: STREAM

0.7 MI S JCT SR 530, Washington, OH

Built 1994 Load: 42.1 t ADT: 5,885

SR 339

Good

Over: SW Fork of Wolf Creek

3.43M North of JCT SR 550, Washington, OH

Built 2020 Load: 42.1 t ADT: 3,128

SR 339

Good

Over: MUSKINGUM RIVER

0.32M S OF JCT SR 60, Washington, OH

Built 1963 Load: 42.1 t ADT: 6,848

CO. RD 15

Good

Over: PAWPAW CR. FULTON BRG

0.82 MI E. OF SR821, Washington, OH

Built 1999 Load: 42.1 t ADT: 89

TOWNSHIP ROAD 66

Good

Over: NO FK MILL C*FORDING#5 G

1.96 MI NORTH OF SR 7, Washington, OH

Built 2004 Load: 42.1 t ADT: 209

TOWNSHIP ROAD 136

Good

Over: L MUSKINGUM * WILSON RU

0.1 MI EAST INT OF SR 26, Washington, OH

Built 1991 Load: 42.1 t ADT: 96

TOWNSHIP ROAD 202

Good

Over: ALDRIDGE RUN * LAN

.20 MI N OF JCT TWP 1, Washington, OH

Built 1974 Load: 42.1 t ADT: 209

TOWNSHIP ROAD 459

Good

Over: HORSE RUN * MORRI

0.30 MI NW JCT T 126&T181, Washington, OH

Built 1900 Load: 42.1 t ADT: 209

TOWNSHIP ROAD 68

Good

Over: W BR WOLF RUN * DANFOR

0.01 MI WEST OF INT CR 6, Washington, OH

Built 1975 Load: 42.1 t ADT: 44

TR-53

Good

Over: W BR LHOCKING * TOTMAN F

0.37 M. E. OF CR-6, Washington, OH

Built 2010 Load: 42.1 t ADT: 209

TWP RD 441

Good

Over: S FK GILBERT RUN DE

2.14 MI E OF JCT CO RD 26, Washington, OH

Built 1949 Load: 42.1 t ADT: 209

COUNTY ROAD 76

Good

Over: CATS CREEK * WICKENS

.95 MI N. OF JCT SR 60, Washington, OH

Built 2023 Load: 44.7 t ADT: 174

SR 555

Good

Over: NORTH BR COAL RUN

0.13M S MORGAN CO. LINE, Washington, OH

Built 2021 Load: 45.0 t ADT: 500

SR 26

Good

Over: LONG EDDY RUN

1.75M S MONROE CO. LINE, Washington, OH

Built 1957 Load: 45.4 t ADT: 103

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

Related

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

Every figure on PlainBridges 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. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.