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)

TOWNSHIP ROAD 97

Good

Over: MILL BRANCH * MILL BR FD

1.75 MI N OF JCT SR 618, Washington, OH

Built 2004 Load: 29.2 t ADT: 159

TOWNSHIP RD 261

Good

Over: S FK WOLF CK * MCAFE

0.06 EAST OF JCT SR 339, Washington, OH

Built 1993 Load: 29.2 t ADT: 96

TOWNSHIP ROAD 268

Good

Over: TUPPER CK*VETO LK FDG* D

0.58 MI N OF JCT CR 3, Washington, OH

Built 2008 Load: 29.2 t ADT: 10

TR 509

Good

Over: IR 77

1.9M N INT. OF SR 821, Washington, OH

Built 1966 Load: 29.5 t ADT: 351

TOWNSHIP ROAD 37

Good

Over: FIFTEENMILE CK * HENTHOR

0.11 MI W OF JCT CR 12, Washington, OH

Built 1996 Load: 29.8 t ADT: 96

TOWNSHIP ROAD 50

Good

Over: INDIAN RUN * WELC

.24 MI N OF MTTA CORP, Washington, OH

Built 1988 Load: 29.8 t ADT: 116

TOWNSHIP ROAD 238

Good

Over: BURNETT RUN * DAN

.25 MI N OF JCT SR 555, Washington, OH

Built 1988 Load: 29.8 t ADT: 35

SR 339

Good

Over: VETO LAKE

3.46M S OF JCT SR 550, Washington, OH

Built 1961 Load: 30.5 t ADT: 5,747

SR 676

Good

Over: WEST BRANCH OF WOLF CREE

1.16 M W OF JCT SR 792, Washington, OH

Built 1999 Load: 30.5 t ADT: 117

COUNTY ROAD 46

Good

Over: EIGHTMILE CRK&THEOBOLD N

4.24 MI N OF JCT SR 7, Washington, OH

Built 2004 Load: 30.8 t ADT: 78

TOWNSHIP ROAD 24

Good

Over: FIFTEENMILE CK * HADLEY

1.4 MI NORTH OF JCT SR-26, Washington, OH

Built 2004 Load: 31.1 t ADT: 22

SR 60

Good

Over: CATS CREEK

0.65 MI. N. JCT. SR 530, Washington, OH

Built 1991 Load: 31.4 t ADT: 4,724

SR 7

Good

Over: COLLINS RUN

1.58M S OF JCT SR 260, Washington, OH

Built 1932 Load: 32.4 t ADT: 3,806

SR 26

Good

Over: DUCK CREEK

1.5 MI N JCT SR 7, Washington, OH

Built 1952 Load: 32.4 t ADT: 6,404

USR 50

Good

Over: SR 339

.3 MI N JCT SR 618 & 339, Washington, OH

Built 2007 Load: 32.4 t ADT: 10,116

USR 50 EAST RAMP

Good

Over: USR 50

0.3 MI N OF SR 339, Washington, OH

Built 2007 Load: 32.4 t ADT: 10,580

USR 50

Good

Over: SR 7 & USR 32

.5 MI. N. OF JCT SR 339, Washington, OH

Built 2007 Load: 32.4 t ADT: 4,813

USR 50

Good

Over: CSX RAILROAD

0.17 MI E. OF JCT SR 7, Washington, OH

Built 2007 Load: 32.4 t ADT: 4,813

IR 77

Good

Over: SR 26

1.35M N W.VA. STATE LINE, Washington, OH

Built 1966 Load: 32.4 t ADT: 7,711

IR 77

Good

Over: TR 48

6.06M S NOBLE CO. LINE, Washington, OH

Built 1967 Load: 32.4 t ADT: 8,304

IR 77

Good

Over: TR 48

6.06M S NOBLE CO. LINE, Washington, OH

Built 1967 Load: 32.4 t ADT: 8,304

SR 821

Good

Over: STREAM

1.6 MI N OF JCT I77, Washington, OH

Built 2009 Load: 32.4 t ADT: 1,487

SR 821

Good

Over: LONGS RUN

4.6 MI. N JCT SR 530, Washington, OH

Built 1992 Load: 32.4 t ADT: 372

SR 821

Good

Over: STREAM

8.3 M N OF SR 530, Washington, OH

Built 1996 Load: 32.4 t ADT: 372

SR 821

Good

Over: WEST FORK OF DUCK CREEK

3.58M S NOBLE CO. LINE, Washington, OH

Built 1983 Load: 32.4 t ADT: 372

CR-2

Good

Over: BRANCH WOLF CR* FISHER W

0.01 MI S OF SR-676, Washington, OH

Built 2000 Load: 32.4 t ADT: 127

COUNTY ROAD 6

Good

Over: WBR L HOCKING * DUNBAR F

3.22 MI NORTH OF SR 555, Washington, OH

Built 1995 Load: 32.4 t ADT: 201

COUNTY ROAD 14

Good

Over: L MUSK ARCHERS FORK LA

0.06 MI E OF JCT SR 26, Washington, OH

Built 2013 Load: 32.4 t ADT: 189

COUNTY ROAD 25

Good

Over: DANA RUN * BEVA

1.58 MI N OF JCT SR 7, Washington, OH

Built 1927 Load: 32.4 t ADT: 433

COUNTY ROAD 12

Good

Over: FIFTEENMILE CK * KITT

2.37 MI N OF JCT SR 26, Washington, OH

Built 1987 Load: 32.4 t ADT: 76

COUNTY ROAD 371

Good

Over: PAWPAW CK * CAMPBELL RU

.08 MI E OF JCT CO RD 15, Washington, OH

Built 1988 Load: 32.4 t ADT: 120

TOWNSHIP ROAD 66

Good

Over: NO FK MILL CR * FORDING#

1.7 MI NO OF JCT SR 7, Washington, OH

Built 2004 Load: 32.4 t ADT: 209

TOWNSHIP ROAD 66

Good

Over: MILLCREEK * FORDING #1

0.61 MI N OF JCT SR 7, Washington, OH

Built 2004 Load: 32.4 t ADT: 209

TR-48

Good

Over: BEAR CREEK * MIRACLE

03.93 MI N SR-60, Washington, OH

Built 1984 Load: 32.4 t ADT: 82

COUNTY ROAD 760

Good

Over: CATS CREEK * HEINE

0.4 MI N OF INT OF SR60, Washington, OH

Built 1991 Load: 32.4 t ADT: 200

TOWNSHIP ROAD 445

Good

Over: NFK GILBERT RUN*TURKEY D

0.82 MI N OF CR 111, Washington, OH

Built 2004 Load: 32.4 t ADT: 209

TOWNSHIP ROAD 466

Good

Over: ALDRIDGE RUN * MERCE

.08 MI W OF JCT SR 676, Washington, OH

Built 1932 Load: 32.4 t ADT: 209

TOWNSHIP ROAD 55

Good

Over: HORSE RUN * BUR

1.50 MI S. EAST OF SR 676, Washington, OH

Built 1900 Load: 32.4 t ADT: 84

TR-228

Good

Over: SW FK WOLF CR* ROWLAND B

0.59 MI. NW OF TR-39, Washington, OH

Built 2010 Load: 32.4 t ADT: 96

TWP RD 266

Good

Over: S BR WOLF CK * GREENLES

0.65 MI EAST OF CR # 2, Washington, OH

Built 1994 Load: 32.4 t ADT: 96

TOWNSHIP ROAD 250

Good

Over: LAUREL RUN WILDWOOD LAK

.01 MI S OF JCT CR 111, Washington, OH

Built 1969 Load: 32.4 t ADT: 209

COUNTY ROAD 98

Good

Over: BIG RUN * JARVI

1.7 MI N OF INT OF CR#3, Washington, OH

Built 1990 Load: 32.4 t ADT: 81

CHERRY TREE LANE

Good

Over: TRIB. TO DUCK CREEK

0.06 mi N of Cnty House L, Washington, OH

Built 2011 Load: 32.4 t ADT: 200

SR 26

Good

Over: STREAM

1.28M N OF JCT CR 25, Washington, OH

Built 2011 Load: 32.7 t ADT: 716

TOWNSHIP ROAD 65

Good

Over: BR MILL CK * KNOWLTO

.01 MI WEST OF INT CR 33, Washington, OH

Built 1960 Load: 32.7 t ADT: 96

TOWNSHIP ROAD 67

Good

Over: SACKETT RUN * SACKETT RU

.55 MI NORTH OF SR 26, Washington, OH

Built 1950 Load: 32.7 t ADT: 96

TOWNSHIP ROAD 24

Good

Over: GOSS FORK * CUTHBER

2.44 MI N OF JCT CO RD 12, Washington, OH

Built 1938 Load: 32.7 t ADT: 22

COUNTY ROAD 79

Good

Over: BR RAINBOW CK * CLAR

1 MI S. OF JCT CR 60, Washington, OH

Built 1992 Load: 32.7 t ADT: 180

IR 77

Good

Over: SR 821-PA RR-DUCK CREEK

0.72M S NOBLE CO. LINE, Washington, OH

Built 1967 Load: 33.4 t ADT: 7,873

SR 7

Good

Over: DUCK CREEK

0.12M N INT. OF I-77, Washington, OH

Built 1966 Load: 34.0 t ADT: 24,836

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.