Total bridges
357
Public highway bridges in Hancock County
County profile · official public datasets
Hancock County, OH
357 public highway bridges tracked in the FHWA National Bridge Inventory: 72.3% rated Good, 26.3% Fair, 1.4% Poor.
- 357
- Public bridges
- 72.3%
- Good condition
- 1.4%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Hancock County pairs a top-quartile lowest Poor-condition share among rated counties in the state with a newer average build year than the state inventory.
- Top 16%
- lowest Poor share in state
- 1.4%
- Poor-condition share
- 357
- public highway bridges
- 1988
- 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.
Hancock County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Hancock County ranks #14 of 88 Ohio counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 1.4%). Hancock County, Ohio contains 357 public highway bridges. Roughly 72.3% are rated “Good,” 26.3% “Fair,” and 1.4% “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.
Good condition
72.3%
258 of 357 rated 7-9
Fair condition
26.3%
94 of 357 rated 5-6
Poor condition
1.4%
5 of 357 rated 4 or below
In-state Poor-share rank
#14 of 88
Among Ohio counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 357 NBI-tracked bridges by lowest applicable component rating.
Good 72.3% (258)
Fair 26.3% (94)
Poor 1.4% (5)
Hancock County's Poor-condition bridges carry 11,024 vehicle crossings a day
That is 0.9% of the county's reported daily bridge traffic on 1.4% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 2,205 crossings a day against 3,186 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 357 of 357 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
29.4% of Hancock County's bridges have passed the 50-year mark
105 of the 357 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 72.3% 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 78.3% of the county's Poor-condition bridge traffic
HAN CO RD 180 over LYE CREEK, built 1967, carries 8,637 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 5-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 11,024 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Hancock County's bridges were built
357 bridges with a recorded construction year, grouped by decade
- pre-1900 1
Built before 1900
1 bridges
- 1900s 5
1900–1909
5 bridges
- 1930s 3
1930–1939
3 bridges
- 1940s 3
1940–1949
3 bridges
- 1950s 17
1950–1959
17 bridges
- 1960s
1960–1969
53 bridges
- 1970s
1970–1979
36 bridges
- 1980s 31
1980–1989
31 bridges
- 1990s
1990–1999
70 bridges
- 2000s
2000–2009
90 bridges
- 2010s
2010–2019
37 bridges
- 2020s 11
2020–2029
11 bridges
What this shows Construction peaked in the 2000s, when 90 of the county's bridges still in the inventory were built, which is 25.2% of those with a recorded year. That cohort is now 15 to 24 years old in the 2024 inventory. Its average build year is 1988, 11 years newer than the Ohio average of 1977.
How Hancock County compares with Ohio's closest counties by inventory size
The 5 Ohio counties nearest Hancock County in number of bridges, with their condition splits. Its 1.4% Poor share is the 1st-lowest of these 6. Its average build year of 1988 against a peer-group mean of 1974 is 14 years newer.
Showing the 5 closest of 87 Ohio counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Muskingum County | 363 | 58.1% | 32% | 9.9% | 1969 |
| Preble County | 357 | 61.6% | 27.5% | 10.9% | 1976 |
| Hancock County (this page) | 357 | 72.3% | 26.3% | 1.4% | 1988 |
| Richland County | 356 | 65.2% | 28.7% | 6.2% | 1984 |
| Ross County | 356 | 41.6% | 50.6% | 7.9% | 1964 |
| Guernsey County | 350 | 41.7% | 49.1% | 9.1% | 1975 |
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 Hancock 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 Hancock County, both outside Ohio so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside OH (357 bridges here).
- Mendocino County, CA · 357 bridges
- Fayette County, IL · 357 bridges
- Augusta County, VA · 357 bridges
- Tazewell County, IL · 358 bridges
Similar average build year
Nearest mean year-built outside OH (1988 here).
- Travis County, TX · avg 1988 · 1,544 bridges
- Grant County, OK · avg 1988 · 476 bridges
- Loudoun County, VA · avg 1988 · 442 bridges
- Vernon County, MO · avg 1988 · 401 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Poor-condition bridges (5)
EAG TWP RD 48
PoorOver: TIDERISHI DITCH
0.31 MI E CR 313, Hancock, OH
Built 1895 Load: 6.5 t ADT: 37
GIBSON ST ARCADIA
PoorOver: JOSEPH BOLEY
0.10 MI N SR 12, Hancock, OH
Built 1930 Load: 9.7 t ADT: 108
HAN CO RD 180
PoorOver: LYE CREEK
0.05 MI N SR 37, Hancock, OH
Built 1967 Load: 13.0 t ADT: 8,637
SR 103
PoorOver: BUCK RUN
0.4 mi. East of USR68, Hancock, OH
Built 1977 Load: 25.9 t ADT: 929
MOREY AVENUE
PoorOver: HOWARD RUN
0.05 MI N DAVIS ST, Hancock, OH
Built 1975 Load: 25.9 t ADT: 1,313
Read our methodology - how this data is sourced, computed, and verified.
Related
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.