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

Fair-condition bridges (76)

GEORGEMILLER RD.

Fair

Over: WEST FORK OF EAGLE CREEK

.5 MI. E. OF T28, Brown, OH

Built 1879 Load: 3.2 t ADT: 148

MCCAFFERTY RD.

Fair

Over: E FORK LITTLE MIAMI RIVE

500 FEET SOUTH OF US 50, Brown, OH

Built 1877 Load: 3.2 t ADT: 385

ELLIS RUN ROAD

Fair

Over: BIG THREE MILE CREEK

.02 MI. N. OF JCT. SR41, Brown, OH

Built 1945 Load: 9.7 t ADT: 155

CHAFFIN ROAD

Fair

Over: SYCAMORE CREEK

.63 MI. N. OF JCT. C12, Brown, OH

Built 1955 Load: 13.0 t ADT: 351

BLUE SKY PARK ROAD

Fair

Over: FIVEMILE CREEK

.72MI.E. OF CLER.CO. LINE, Brown, OH

Built 1960 Load: 16.2 t ADT: 304

MT. ZION ROAD

Fair

Over: W BRANCH BULLSKIN CREEK

.28 MI. N. OF JCT. SR756, Brown, OH

Built 1952 Load: 16.2 t ADT: 96

GREENBUSH EAST

Fair

Over: STERLING RUN

.1 MI. W. OF JCT. T140, Brown, OH

Built 1935 Load: 16.2 t ADT: 1,491

FIVE PTS FINCASTLE

Fair

Over: BRANCH OF OHIO BRUSH CR

.36 MI. W. OF JCT. US 62, Brown, OH

Built 1950 Load: 16.2 t ADT: 274

TRI-COUNTY HIGHWAY

Fair

Over: NORTH FRK WHITE OAK CREE

1.88 MI E CLER CO LINE, Brown, OH

Built 1956 Load: 16.2 t ADT: 1,423

CHICKEN HOLLOW RD

Fair

Over: CHICKEN HOLLOW

.45 MI. E. OF JCT. US 68, Brown, OH

Built 1950 Load: 19.4 t ADT: 385

CHICKEN HOLLOW RD

Fair

Over: CHICKEN HOLLOW

.57 MI. E. OF JCT. US 68, Brown, OH

Built 1960 Load: 19.4 t ADT: 385

COUNTY ROAD

Fair

Over: W FORK HONEY RUN

2.1MI E OF JCT US 62, Brown, OH

Built 1983 Load: 22.7 t ADT: 50

SR 251

Fair

Over: E FK LITTLE MIAMI RIVER

.29 MI S OF SR 123, Brown, OH

Built 1954 Load: 22.7 t ADT: 1,189

HUGHES ROAD

Fair

Over: RATTLESNAKE CREEK

1.01 MI. W. OF JCT. C14A, Brown, OH

Built 1930 Load: 22.7 t ADT: 351

CENTERPOINT RD.

Fair

Over: SHEEP RUN

75 FEET W. OF JCT. T270, Brown, OH

Built 1973 Load: 22.7 t ADT: 104

TRI-COUNTY HIGHWAY

Fair

Over: WHITE OAK CREEK

11.25 MI E CLER CO LINE, Brown, OH

Built 1945 Load: 22.7 t ADT: 1,423

US 50

Fair

Over: E FORK LITTLE MIAMI RIVE

.05 MI W OF FAYETTEVILLE, Brown, OH

Built 1940 Load: 25.9 t ADT: 4,644

US 52

Fair

Over: EAGLE CREEK

.48 MI E OF RIPLEY, Brown, OH

Built 1956 Load: 25.9 t ADT: 6,397

USR 68

Fair

Over: FIVEMILE CREEK

.15 MI N OF SR 286, Brown, OH

Built 1957 Load: 25.9 t ADT: 3,700

MELBLANC ROAD

Fair

Over: W. FORK OHIO BRUSH CREEK

.04 MI. S. OF JCT. C23, Brown, OH

Built 1950 Load: 25.9 t ADT: 324

BIG RUN ROAD

Fair

Over: BIG RUN

1000 FT EAST SR41, Brown, OH

Built 1940 Load: 25.9 t ADT: 155

DAYHILL ARNHEIM RD

Fair

Over: CAMP RUN

.58 MI. N. OF JCT. SR125, Brown, OH

Built 1965 Load: 25.9 t ADT: 253

CAMP RUN ROAD

Fair

Over: CAMP RUN

.65 MI. W. OF JCT. C32, Brown, OH

Built 1989 Load: 25.9 t ADT: 586

TRI-COUNTY HIGHWAY

Fair

Over: FLAT RUN

8.42 MI E OF CLER CO LINE, Brown, OH

Built 1956 Load: 25.9 t ADT: 1,423

BIG RUN

Fair

Over: BIG RUN

0.72 MI N. OLD A&P, Brown, OH

Built 1999 Load: 25.9 t ADT: 155

STATE ROUTE 763

Fair

Over: SLICKAWAY RUN

.58 MI N OF SR 41, Brown, OH

Built 1996 Load: 28.5 t ADT: 404

US 52

Fair

Over: WHITE OAK CREEK

.48 MI E OF HIGGINSPORT, Brown, OH

Built 1943 Load: 29.2 t ADT: 1,980

DELHI ARNHEIM RD

Fair

Over: W FORK OF STRAIGHT CREEK

.8 MI. E. OF JCT. C4B, Brown, OH

Built 1951 Load: 29.2 t ADT: 270

HOCKMAN ROAD

Fair

Over: WASHBURN RUN

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

Built 1925 Load: 29.2 t ADT: 50

OLD STATE ROAD

Fair

Over: TODD RUN

.15 MI. E. OF JCT. C74A, Brown, OH

Built 1950 Load: 29.2 t ADT: 351

RIPLEY DAYHILL RD.

Fair

Over: STREAM

.17 MI. E. OF JCT. C3A, Brown, OH

Built 1930 Load: 29.2 t ADT: 485

OLD A&P RD.

Fair

Over: STREAM

2.95 MI. E. OF JCT. SR505, Brown, OH

Built 1958 Load: 29.2 t ADT: 385

USR 68

Fair

Over: OVER SR 32

OVER SR 32, Brown, OH

Built 1979 Load: 32.1 t ADT: 14,066

SR 32

Fair

Over: LITTLE STERLING RUN

.18 MI W OF US 68, Brown, OH

Built 1980 Load: 32.4 t ADT: 8,991

SR 32

Fair

Over: LITTLE STERLING RUN

.18 MI N OF US 68, Brown, OH

Built 1980 Load: 32.4 t ADT: 8,991

SR 32

Fair

Over: STERLING RUN

.17 MI E OF US 68, Brown, OH

Built 1980 Load: 32.4 t ADT: 8,991

SR 32

Fair

Over: STERLING RUN

.17 MI E OF US 68, Brown, OH

Built 1980 Load: 32.4 t ADT: 8,991

SR 32

Fair

Over: FLAT RUN

3.22 MI E OF USR 68, Brown, OH

Built 1980 Load: 32.4 t ADT: 7,298

SR 32

Fair

Over: FLAT RUN

3.2MI E OF JCT USR 68, Brown, OH

Built 1980 Load: 32.4 t ADT: 7,298

US 50

Fair

Over: GLADY RUN

0.87MI W OF JCT SR 131, Brown, OH

Built 1971 Load: 32.4 t ADT: 3,009

US 52

Fair

Over: RED OAK CREEK

RIPLEY, Brown, OH

Built 1940 Load: 32.4 t ADT: 6,173

US 52

Fair

Over: BIG THREEMILE CREEK

1.06 MI W OF ABERDEEN, Brown, OH

Built 1955 Load: 32.4 t ADT: 6,397

US ROUTES 62/68

Fair

Over: OHIO RIVER CSX RR KY 8

0.527MI S OF USR 52, Brown, OH

Built 2000 Load: 32.4 t ADT: 5,525

US 62

Fair

Over: TRIB OF RED OAK CREEK

.59 MI W OF US 68, Brown, OH

Built 1966 Load: 32.4 t ADT: 1,985

USR 68

Fair

Over: STRAIGHT CREEK

1.56 MI S OF SR 125, Brown, OH

Built 1967 Load: 32.4 t ADT: 3,667

STAE ROUTE 125

Fair

Over: TRIB OF CLOVERLICK CREEK

1.31 MI E OF CLERMONT CTY, Brown, OH

Built 2004 Load: 32.4 t ADT: 5,922

SR 125

Fair

Over: HONEY RUN

2.3MI E OF JCT US 62, Brown, OH

Built 1982 Load: 32.4 t ADT: 1,045

STATE ROUTE 125

Fair

Over: STREAM

3.26 MI W OF ADAMS COUNTY, Brown, OH

Built 1985 Load: 32.4 t ADT: 1,045

SR 131

Fair

Over: SALTLICK CREEK

0.75MI E OF JCT US 68, Brown, OH

Built 1984 Load: 32.4 t ADT: 907

STATE ROUTE 221

Fair

Over: BOAT RUN

25587 MI N OF US 52, Brown, OH

Built 1995 Load: 32.4 t ADT: 194

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

Related

Browse all → | Rankings →
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.