County profile · official public datasets

Trumbull County, OH

383 public highway bridges tracked in the FHWA National Bridge Inventory: 59.3% rated Good, 30.5% Fair, 10.2% Poor.

383
Public bridges: 59.3%
Good condition: 10.2%
Poor condition

The verdict

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

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

85th
of 88 on Poor share: 10.2%
Poor-condition share: 383
public highway bridges: 1977
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.

Trumbull County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Trumbull County ranks #85 of 88 Ohio counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 10.2%). Trumbull County, Ohio contains 383 public highway bridges. Roughly 59.3% are rated “Good,” 30.5% “Fair,” and 10.2% “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

383

Public highway bridges in Trumbull County

Good condition

59.3%

227 of 383 rated 7-9

Fair condition

30.5%

117 of 383 rated 5-6

Poor condition

10.2%

39 of 383 rated 4 or below

In-state Poor-share rank

#85 of 88

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

Condition distribution

Share of 383 NBI-tracked bridges by lowest applicable component rating.

Good

59.3% (227)

Fair

30.5% (117)

Poor

10.2% (39)

Trumbull County's Poor-condition bridges carry 140,632 vehicle crossings a day

That is 6.1% of the county's reported daily bridge traffic on 10.2% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 3,606 crossings a day against 6,129 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 383 of 383 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

53.5% of Trumbull County's bridges have passed the 50-year mark

205 of the 383 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 59.3% 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 25.2% of the county's Poor-condition bridge traffic

I80 OH TPK over CSX RR, built 1956, carries 35,398 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 39-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 140,632 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

pre-1900

1
1900s

2
1910s

3
1920s

5
1930s

15
1940s

17
1950s

52
1960s

50
1970s

80
1980s

27
1990s

44
2000s

36
2010s

45
2020s

6

What this shows Construction peaked in the 1970s, when 80 of the county's bridges still in the inventory were built, which is 20.9% of those with a recorded year. That cohort is now 45 to 54 years old in the 2024 inventory. Its average build year (1977) matches the Ohio average (1977).

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

The 5 Ohio counties nearest Trumbull County in number of bridges, with their condition splits. Its 10.2% Poor share is the 6th-lowest of these 6. Its average build year of 1977 against a peer-group mean of 1980 is in line with the group.

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

Bridge inventory size and condition shares for Trumbull County and the 5 Ohio counties closest to it in inventory size
County	Bridges	Good	Fair	Poor	Avg. built
Wayne County	391	59.3%	33.8%	6.9%	1976
Trumbull County (this page)	383	59.3%	30.5%	10.2%	1977
Butler County	377	62.3%	32.9%	4.8%	1985
Scioto County	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

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

Similar inventory size

Nearest county inventories outside OH (383 bridges here).

Webb County, TX · 383 bridges
Grant County, WI · 383 bridges
Bristol County, MA · 384 bridges
Custer County, OK · 384 bridges

Similar average build year

Nearest mean year-built outside OH (1977 here).

San Diego County, CA · avg 1977 · 1,632 bridges
King County, WA · avg 1977 · 1,238 bridges
Riverside County, CA · avg 1977 · 1,117 bridges
Shelby County, TN · avg 1977 · 1,077 bridges

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

All 383 Good 227 Fair 117 Poor 39

All bridges (383)

Sort:

Trumbull County Bridge Snapshot

Condition distribution

Trumbull County's Poor-condition bridges carry 140,632 vehicle crossings a day

53.5% of Trumbull County's bridges have passed the 50-year mark

One structure carries 25.2% of the county's Poor-condition bridge traffic

How Trumbull 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

All bridges (383)

SR 5

SR 87

Layer Road

DAVIS-PECK ROAD

GARDNER-BARCLAY RD

SR 11

YORK STREET CR 290

SR 5

SR 5

SR 82

TOWNLINE RD

CARSON-SALT SPRING

COUNTY ROAD 12B

COUNTY LINE DONLEY

COUNTY LINE DONLEY

DURST-COLEBROOK RD

SR 11

ELSWORTH-BAILEY RD

SR 45

MYRON ST. HUBBARD

IR 80

SR 11

US 62

US 422

CH255A

I.R. 80

RISHER ROAD

SOUTH CANAL ST

TOWNSHIP RD. 193-A

MERWIN CHASE ROAD

TOWNSHIP RD. 249-A

COUNTY ROAD 239-C

SR 87

MORFORD EAST RD

5th Street

SR 305

COUNTY ROAD 206-D

FOWLER RIDGE ROAD

SR 82

SR 534

IR 80

I.R. 80

I.R. 80

US 422

WARNER ROAD

NORTH RIVER ROAD

HAYES-ORANGEVILLE

CUSTER ORANGEVILLE

NILES-VIENNA RD

PRINDLE-BOOTH RD

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