County profile · official public datasets

Scioto County, OH

376 public highway bridges tracked in the FHWA National Bridge Inventory: 65.7% rated Good, 29.3% Fair, 5.1% Poor.

376
Public bridges: 65.7%
Good condition: 5.1%
Poor condition

The verdict

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

Scioto County pairs a higher-than-median Poor-condition share among rated counties in the state with a newer average build year than the state inventory.

51st
of 88 on Poor share: 5.1%
Poor-condition share: 376
public highway bridges: 1984
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.

Scioto County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Scioto County ranks #51 of 88 Ohio counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 5.1%). Scioto County, Ohio contains 376 public highway bridges. Roughly 65.7% are rated “Good,” 29.3% “Fair,” and 5.1% “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

376

Public highway bridges in Scioto County

Good condition

65.7%

247 of 376 rated 7-9

Fair condition

29.3%

110 of 376 rated 5-6

Poor condition

5.1%

19 of 376 rated 4 or below

In-state Poor-share rank

#51 of 88

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

Condition distribution

Share of 376 NBI-tracked bridges by lowest applicable component rating.

Good

65.7% (247)

Fair

29.3% (110)

Poor

5.1% (19)

Scioto County's Poor-condition bridges carry 13,111 vehicle crossings a day

That is 1.4% of the county's reported daily bridge traffic on 5.1% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 690 crossings a day against 2,013 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 376 of 376 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

34.3% of Scioto County's bridges have passed the 50-year mark

129 of the 376 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 65.7% 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 17.8% of the county's Poor-condition bridge traffic

CAREYS RUN-POND CK over CAREYS RUN RD(CAREYS RUN, built 1940, carries 2,339 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 19-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 13,111 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

pre-1900

2
1900s

7
1920s

5
1930s

16
1940s

22
1950s

25
1960s

33
1970s

26
1980s

28
1990s

65
2000s

72
2010s

59
2020s

16

What this shows Construction peaked in the 2000s, when 72 of the county's bridges still in the inventory were built, which is 19.1% of those with a recorded year. That cohort is now 15 to 24 years old in the 2024 inventory. Its average build year is 1984, 7 years newer than the Ohio average of 1977.

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

The 5 Ohio counties nearest Scioto County in number of bridges, with their condition splits. Its 5.1% Poor share is the 2nd-lowest of these 6. Its average build year of 1984 against a peer-group mean of 1977 is 7 years newer.

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

Bridge inventory size and condition shares for Scioto County and the 5 Ohio counties closest to it in inventory size
County	Bridges	Good	Fair	Poor	Avg. built
Trumbull County	383	59.3%	30.5%	10.2%	1977
Butler County	377	62.3%	32.9%	4.8%	1985
Scioto County (this page)	376	65.7%	29.3%	5.1%	1984
Allen County	367	67.6%	22.6%	9.8%	1982
Lorain County	366	53.8%	40.7%	5.5%	1973
Muskingum County	363	58.1%	32%	9.9%	1969

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

Similar inventory size

Nearest county inventories outside OH (376 bridges here).

Monterey County, CA · 377 bridges
Ogle County, IL · 377 bridges
Cass County, MO · 377 bridges
Bureau County, IL · 375 bridges

Similar average build year

Nearest mean year-built outside OH (1984 here).

Hennepin County, MN · avg 1984 · 936 bridges
Duval County, FL · avg 1984 · 831 bridges
El Paso County, CO · avg 1984 · 686 bridges
Bell County, TX · avg 1984 · 660 bridges

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

All 376 Good 247 Fair 110 Poor 19

Fair-condition bridges (110)

Sort:

Scioto County Bridge Snapshot

Condition distribution

Scioto County's Poor-condition bridges carry 13,111 vehicle crossings a day

34.3% of Scioto County's bridges have passed the 50-year mark

One structure carries 17.8% of the county's Poor-condition bridge traffic

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

Nationwide counties with similar inventory size or average build year

Similar inventory size

Similar average build year

Fair-condition bridges (110)

US 52

USR 52

US 52

C.R. 7

US 52

US 52

SR 73

SR 104

SR 139

SR 140

STATE ROUTE 335

SR 348

SR 348

SR 522

SR 522

SR 522

SR852

RT# 001

RT# 002

RT 003

LICK RUN-LYRA ROAD

MILLERS RUN-FALLEN

DONALD KIRKER ROAD

MACKLETREE ROAD

GALLIA STREET

US 23

US 52

US 52

US 52

USR 23

RT# 001

RT# 003

014SF

CAREYS RUN-POND CK

BIG PETE ROAD

SR 522

SR 348

POND RUN ROAD

WH GRAVEL-MCDANIEL

US 52

SR 125

RD# 016

NAUVOO-POND CK RD

SR 140

RT# 001

LICK RUN-LYRA ROAD

SR 125

CAREYS RUN-POND CK

RT#002

RT# 013

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