County profile · official public datasets

Wyoming County, NY

136 public highway bridges tracked in the FHWA National Bridge Inventory: 38.2% rated Good, 52.9% Fair, 8.8% Poor.

136
Public bridges: 38.2%
Good condition: 8.8%
Poor condition

The verdict

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

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

Top 45%
lowest Poor share in state: 8.8%
Poor-condition share: 136
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.

Wyoming County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Wyoming County ranks #28 of 62 New York counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 8.8%). Wyoming County, New York contains 136 public highway bridges. Roughly 38.2% are rated “Good,” 52.9% “Fair,” and 8.8% “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

136

Public highway bridges in Wyoming County

Good condition

38.2%

52 of 136 rated 7-9

Fair condition

52.9%

72 of 136 rated 5-6

Poor condition

8.8%

12 of 136 rated 4 or below

In-state Poor-share rank

#28 of 62

Among New York counties with 5+ bridges, lower share ranks better

Condition distribution

Share of 136 NBI-tracked bridges by lowest applicable component rating.

Good

38.2% (52)

Fair

52.9% (72)

Poor

8.8% (12)

Wyoming County's Poor-condition bridges carry 19,412 vehicle crossings a day

That is 11% of the county's reported daily bridge traffic on 9% of its bridges: Poor-condition structures carry more traffic than their share of the inventory. Each Poor bridge averages 1,618 crossings a day against 1,379 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 133 of 136 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

45.6% of Wyoming County's bridges have passed the 50-year mark

62 of the 136 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 38.2% 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 22.8% of the county's Poor-condition bridge traffic

RTE 20A over STONY BROOK, built 1931, carries 4,434 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 12-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 19,412 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

1910s

1
1920s

5
1930s

14
1940s

5
1950s

16
1960s

13
1970s

14
1980s

11
1990s

21
2000s

13
2010s

16
2020s

7

What this shows Construction peaked in the 1990s, when 21 of the county's bridges still in the inventory were built, which is 15.4% of those with a recorded year. That cohort is now 25 to 34 years old in the 2024 inventory. Its average build year is 1977, 5 years newer than the New York average of 1972.

How Wyoming County compares with New York's closest counties by inventory size

The 5 New York counties nearest Wyoming County in number of bridges, with their condition splits. Its 8.8% Poor share is the 2nd-lowest of these 6. Its average build year of 1977 against a peer-group mean of 1970 is 7 years newer.

Showing the 5 closest of 61 New York counties eligible for comparison.

Bridge inventory size and condition shares for Wyoming County and the 5 New York counties closest to it in inventory size
County	Bridges	Good	Fair	Poor	Avg. built
Genesee County	162	28.4%	58%	13.6%	1970
Cayuga County	148	36.5%	46.6%	16.9%	1971
Warren County	141	39%	51.1%	9.9%	1970
Orleans County	136	41.2%	42.6%	16.2%	1962
Wyoming County (this page)	136	38.2%	52.9%	8.8%	1977
Schenectady County	115	32.2%	60%	7.8%	1977

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 Wyoming 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 Wyoming County, both outside New York so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside NY (136 bridges here).

Bullock County, AL · 136 bridges
Jackson County, AR · 136 bridges
Perry County, IL · 136 bridges
Lincoln County, KY · 136 bridges

Similar average build year

Nearest mean year-built outside NY (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 136 Good 52 Fair 72 Poor 12

All bridges (136)

Sort:

Wyoming County Bridge Snapshot

Condition distribution

Wyoming County's Poor-condition bridges carry 19,412 vehicle crossings a day

45.6% of Wyoming County's bridges have passed the 50-year mark

One structure carries 22.8% of the county's Poor-condition bridge traffic

How Wyoming County compares with New York'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 (136)

Oatka Street

HURDVILLE ROAD

COUNTY ROAD 7

RTE 39

SNYDER ROAD

RTE 19

RTE 98

RTE 78

EAST KOY ROAD

RTE 238

COOLEY ROAD

RTE 19

RTE 39

W MIDDLEBURY ROAD

Falls Road

MAXON ROAD

DUNBAR ROAD

PROSPECT STREET

RTE 20A

RTE 98

CENTERLINE ROAD

FOLSOMDALE ROAD

W MIDDLEBURY ROAD

COUNTY ROAD 53

DUNN ROAD

RTE 98

RTE 354

RTE 98

RTE 78

RTE 19

RTE 20A

RTE 19

RTE 39

RTE 19

JAVA LAKE RD

RTE 39

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