Total bridges
559
Public highway bridges in Chautauqua County
County profile · official public datasets
559 public highway bridges tracked in the FHWA National Bridge Inventory: 44% rated Good, 46.3% Fair, 9.7% Poor.
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Chautauqua 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.
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.
According to the Federal Highway Administration's 2024 National Bridge Inventory, Chautauqua County ranks #31 of 62 New York counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 9.7%). Chautauqua County, New York contains 559 public highway bridges. Roughly 44% are rated “Good,” 46.3% “Fair,” and 9.7% “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
559
Public highway bridges in Chautauqua County
Good condition
44%
246 of 559 rated 7-9
Fair condition
46.3%
259 of 559 rated 5-6
Poor condition
9.7%
54 of 559 rated 4 or below
In-state Poor-share rank
#31 of 62
Among New York counties with 5+ bridges, lower share ranks better
Share of 559 NBI-tracked bridges by lowest applicable component rating.
That is 6.7% of the county's reported daily bridge traffic on 9.4% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 1,824 crossings a day against 2,396 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 556 of 559 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
247 of the 559 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 44% 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.
RTE I86 over BALL CREEK CHAUTAUQUA L, built 1982, carries 15,071 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 54-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 94,849 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
559 bridges with a recorded construction year, grouped by decade
Built before 1900
2 bridges
1900–1909
1 bridges
1910–1919
2 bridges
1920–1929
10 bridges
1930–1939
43 bridges
1940–1949
13 bridges
1950–1959
101 bridges
1960–1969
34 bridges
1970–1979
73 bridges
1980–1989
77 bridges
1990–1999
91 bridges
2000–2009
55 bridges
2010–2019
47 bridges
2020–2029
10 bridges
What this shows Construction peaked in the 1950s, when 101 of the county's bridges still in the inventory were built, which is 18.1% of those with a recorded year. That cohort is now 65 to 74 years old in the 2024 inventory. Its average build year is 1977, 5 years newer than the New York average of 1972.
The 5 New York counties nearest Chautauqua County in number of bridges, with their condition splits. Its 9.7% Poor share is the 4th-lowest of these 6. Its average build year of 1977 against a peer-group mean of 1976 is in line with the group.
Showing the 5 closest of 61 New York counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Steuben County | 627 | 41.5% | 54.4% | 4.1% | 1984 |
| Monroe County | 615 | 36.4% | 52.7% | 10.9% | 1975 |
| Chautauqua County (this page) | 559 | 44% | 46.3% | 9.7% | 1977 |
| Queens County | 514 | 30.4% | 62.3% | 7.4% | 1966 |
| Oneida County | 496 | 46.2% | 42.3% | 11.5% | 1972 |
| Cattaraugus County | 484 | 55.4% | 38.4% | 6.2% | 1982 |
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 Chautauqua County's. Source: FHWA National Bridge Inventory, 2024 release.
Two NBI-derived peer sets for Chautauqua County, both outside New York so the neighborhoods are not the same-state size table above.
Nearest county inventories outside NY (559 bridges here).
Nearest mean year-built outside NY (1977 here).
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Over: TRIB LAKE ERIE
2.1 MILES SW OF WESTFIELD, Chautauqua, NY
Over: RTE 394
1.1 MILES WEST KENNEDY IN, Chautauqua, NY
Over: CASSADAGA CREEK
1.1 MI EAST OF FALCONER, Chautauqua, NY
Over: FARRINGTON BROOK
.1 MI W OF INTERSEC CR 72, Chautauqua, NY
Read our methodology - how this data is sourced, computed, and verified.
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.