County profile · official public datasets

Brown County, OH

223 public highway bridges tracked in the FHWA National Bridge Inventory: 62.8% rated Good, 34.1% Fair, 3.1% Poor.

223
Public bridges
62.8%
Good condition
3.1%
Poor condition

The verdict

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

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

Top 44%
lowest Poor share in state
3.1%
Poor-condition share
223
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.

Brown County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Brown County ranks #39 of 88 Ohio counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 3.1%). Brown County, Ohio contains 223 public highway bridges. Roughly 62.8% are rated “Good,” 34.1% “Fair,” and 3.1% “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

223

Public highway bridges in Brown County

Good condition

62.8%

140 of 223 rated 7-9

Fair condition

34.1%

76 of 223 rated 5-6

Poor condition

3.1%

7 of 223 rated 4 or below

In-state Poor-share rank

#39 of 88

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

Condition distribution

Share of 223 NBI-tracked bridges by lowest applicable component rating.

Good
62.8% (140)
Fair
34.1% (76)
Poor
3.1% (7)

Brown County's Poor-condition bridges carry 11,630 vehicle crossings a day

That is 3.9% of the county's reported daily bridge traffic on 3.1% of its bridges: Poor-condition structures carry more traffic than their share of the inventory. Each Poor bridge averages 1,661 crossings a day against 916 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 223 of 223 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

43.9% of Brown County's bridges have passed the 50-year mark

98 of the 223 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 62.8% 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 55.7% of the county's Poor-condition bridge traffic

BUS.62 over OHIO RIVER CSX RR LOCAL, built 1931, carries 6,478 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 7-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 11,630 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

When Brown County's bridges were built

223 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 1990s, when 39 of the county's bridges still in the inventory were built, which is 17.5% of those with a recorded year. That cohort is now 25 to 34 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 Brown County compares with Ohio's closest counties by inventory size

The 5 Ohio counties nearest Brown County in number of bridges, with their condition splits. Its 3.1% Poor share is the 5th-lowest of these 6. Its average build year of 1974 against a peer-group mean of 1974 is in line with the group.

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

Bridge inventory size and condition shares for Brown County and the 5 Ohio counties closest to it in inventory size
County Bridges Poor
Jefferson County 226 8.4%
Erie County 225 0.4%
Pickaway County 224 2.2%
Brown County (this page) 223 3.1%
Crawford County 221 2.7%
Union County 221 1.4%

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 Brown 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 Brown County, both outside Ohio so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside OH (223 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 223 Good 140 Fair 76 Poor 7

All bridges (223)

SARDINIA MOWRYS

Good

Over: EAST FORK WHITE OAK CREE

.5 MI N OF SR32, Brown, OH

Built 1991 Load: 32.4 t ADT: 1,403

RIPLEY RD

Good

Over: RED OAK CREEK

0.62 MI N RIPLEY CORP, Brown, OH

Built 1994 Load: 32.4 t ADT: 268

FRANCIS ROAD

Good

Over: STREAM

560 FT SOUTH OF T-16, Brown, OH

Built 1995 Load: 32.4 t ADT: 64

HONEY RUN ROAD

Good

Over: STREAM

550 FT EAST OF WALLACE RD, Brown, OH

Built 1995 Load: 32.4 t ADT: 351

MOON ROAD

Good

Over: STERLING RUN

500 FT NORTH OF MOUNT RD, Brown, OH

Built 1995 Load: 32.4 t ADT: 159

GLADY RD.

Good

Over: SYCAMORE CREEK

.86 MI. E. OF JCT. C12, Brown, OH

Built 1996 Load: 32.4 t ADT: 130

TWP. RD. T272

Good

Over: BIG RUN

0.79 MI. N. OF OLD A&P RD, Brown, OH

Built 1998 Load: 32.4 t ADT: 155

CROSSTOWN RD

Good

Over: STREAM

0.10M. CLER. CO. LINE, Brown, OH

Built 1999 Load: 32.4 t ADT: 814

RUSSELLVILLE WIN

Good

Over: TRIB. TO W. FORK EAGLE C

.75 MILES E. OF SR125, Brown, OH

Built 2005 Load: 32.4 t ADT: 511

WILSON RD.

Good

Over: CREEK

2 M. E. OF US 62, Brown, OH

Built 2004 Load: 32.4 t ADT: 351

HUNTER RD.

Good

Over: WHITE OAK CREEK

.4 M. N. OF ST. RT. 221, Brown, OH

Built 2004 Load: 32.4 t ADT: 324

OLD 68

Good

Over: CREEK

1.01 M. N. OF US 52, Brown, OH

Built 2004 Load: 32.4 t ADT: 379

NEWHOPE WHTOAK ST

Good

Over: CREEK

.5 M. N. OF GOOSE RUN RD, Brown, OH

Built 2005 Load: 32.4 t ADT: 385

NEWHOPE WHTOAK ST

Good

Over: EAST FORK OF WHITE OAK C

2.46 M. N. OF US 68, Brown, OH

Built 1997 Load: 32.4 t ADT: 485

FISHING GUT RD.

Good

Over: FISHING GUT CREEK

.9 M. E. OF ST. RT. 41, Brown, OH

Built 2002 Load: 32.4 t ADT: 175

FEESBURG POETOWN

Good

Over: WEST BRANCH BULLSKIN CRK

1.63 MILES E. OF SR774, Brown, OH

Built 2005 Load: 32.4 t ADT: 374

FISHING GUT RD.

Good

Over: FISHING GUT CREEK

1.62 M. E. OF US 41, Brown, OH

Built 2004 Load: 32.4 t ADT: 175

MALADY RD.

Good

Over: FIVE MILE CREEK

1.61 M. N OF C8B, Brown, OH

Built 2005 Load: 32.4 t ADT: 385

BARDWELL WEST

Good

Over: CREEK

1500 FT. W. OF US 68, Brown, OH

Built 2005 Load: 32.4 t ADT: 956

DONLEY RD.

Good

Over: CREEK

.25 M. W. OF U S 68, Brown, OH

Built 2005 Load: 32.4 t ADT: 155

EVANS RD.

Good

Over: SALTLICK CREEK

.32 MILES NORTH OF SR.131, Brown, OH

Built 2006 Load: 32.4 t ADT: 155

CARPENTER RD.

Good

Over: STERLING RN

500 W. OF CORP., Brown, OH

Built 2007 Load: 32.4 t ADT: 1,423

STRINGTOWN RD.

Good

Over: STREAM

200 FT. W. OF SR763, Brown, OH

Built 2020 Load: 32.4 t ADT: 951

HARTMAN RD.

Good

Over: REDOAK CREEK

500 FT. EAST OF US68, Brown, OH

Built 2007 Load: 32.4 t ADT: 100

FLAUGHER HILL RD.

Good

Over: THREE MILE CREEK

.44 MI. N. OF US 52, Brown, OH

Built 1963 Load: 32.4 t ADT: 226

BIG RUN RD.

Good

Over: STREAM

.65 MILES N. OF OLD A&P, Brown, OH

Built 1950 Load: 32.4 t ADT: 155

SCHEFSKY RD.

Good

Over: STREAM

1500 FEET E. OF FATE-BLAN, Brown, OH

Built 2008 Load: 32.4 t ADT: 203

HAMER RD.

Good

Over: SLAB CAMP RUN

750 FEET S. OF TRI-CTY HW, Brown, OH

Built 2009 Load: 32.4 t ADT: 838

LOVE RD.

Good

Over: STREAM

300 FEET S. OF EDEN RD, Brown, OH

Built 2010 Load: 32.4 t ADT: 385

DAUGHERTY MARKS RD

Good

Over: STREAM

1300 FEET N. OF EDEN RD., Brown, OH

Built 2010 Load: 32.4 t ADT: 231

SR 221

Good

Over: White Oak Creek

2.10 MI S of Georgetown, Brown, OH

Built 2022 Load: 33.7 t ADT: 200

STATE ROUTE 123

Good

Over: W BR OF L FK LITTLE MIAM

.26 MI N OF US RT. 68, Brown, OH

Built 1999 Load: 34.0 t ADT: 1,656

SR 353

Good

Over: W FORK EAGLE CREEK

1.7 MI W OF JCT SR 125, Brown, OH

Built 1990 Load: 35.6 t ADT: 541

CLOVERLICK CREEK

Good

Over: CLOVERLICK CREEK

3.12 MI N OF ST RT 125, Brown, OH

Built 2002 Load: 35.6 t ADT: 1,882

USR 68

Good

Over: STERLING RUN

.12 MI S OF SR 32, Brown, OH

Built 1979 Load: 37.3 t ADT: 16,006

SR 131

Good

Over: SALT LICK CREEK

2.7 MI W OF BRO-HIG LINE, Brown, OH

Built 1985 Load: 38.9 t ADT: 907

RUSSELLVILLEWIN RD

Good

Over: W FORK OF EAGLE CREEK

.1 MI. W. OF JCT. C27B, Brown, OH

Built 1975 Load: 38.9 t ADT: 511

HOCKMAN ROAD

Good

Over: WASHBURN RUN

1.11 MI. S. OF JCT. T15, Brown, OH

Built 1935 Load: 38.9 t ADT: 50

OLD A&P RD.

Good

Over: STRAIGHT CREEK

1.19 MI N OF US52, Brown, OH

Built 1999 Load: 38.9 t ADT: 385

SR 125

Good

Over: RATTLESNAKE CREEK

2.40 MI W OF ADAMS COUNTY, Brown, OH

Built 1983 Load: 42.1 t ADT: 1,045

TRI-COUNTY HIGHWAY

Good

Over: STERLING RUN

500 FEET W. OF US 68, Brown, OH

Built 2010 Load: 42.1 t ADT: 3,517

BLOOMROSE

Good

Over: STREAM

100 S. OF BLUESKY PARK RD, Brown, OH

Built 2009 Load: 42.1 t ADT: 338

SR 251

Good

Over: SOLOMON RUN

1.67 KM N OF US 50, Brown, OH

Built 1994 Load: 45.4 t ADT: 1,189

SR 286

Good

Over: FIVE MILE CREEK

0.3 MILE W. OF US 68, Brown, OH

Built 2014 Load: 45.4 t ADT: 775

State Route 774

Good

Over: Sterling Run

.43 Mi of US 68, Brown, OH

Built 2021 Load: 47.0 t ADT: 2,000

SR 125

Good

Over: WHITE OAK CREEK

.59 MI W OF GEORGETOWN, Brown, OH

Built 2020 Load: 51.8 t ADT: 6,600

STERLING RUN BLVD

Good

Over: STERLING RUN

100 W OF US 68, Brown, OH

Built 1985 Load: 55.4 t ADT: 500

SR 131

Good

Over: E FORK LITTLE MIAMI RIVE

1.26 MI E OF US 50, Brown, OH

Built 2011 Load: 64.8 t ADT: 1,450

BETHEL NEWHOPE

Good

Over: CLOVERLICK CREEK

.61 MI. W. OF JCT. SR774, Brown, OH

Built 1976 Load: 74.5 t ADT: 444

PURDY RD

Good

Over: SLABCAMP RUN

.01 MI.S.OF SARDINIA CORP, Brown, OH

Built 1987 Load: 74.5 t ADT: 1,073

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.