County profile · official public datasets

Chautauqua County, NY

559 public highway bridges tracked in the FHWA National Bridge Inventory: 44% rated Good, 46.3% Fair, 9.7% Poor.

559
Public bridges
44%
Good condition
9.7%
Poor condition

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.

Top 50%
lowest Poor share in state
9.7%
Poor-condition share
559
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.

Chautauqua County Bridge Snapshot

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

Condition distribution

Share of 559 NBI-tracked bridges by lowest applicable component rating.

Good
44% (246)
Fair
46.3% (259)
Poor
9.7% (54)

Chautauqua County's Poor-condition bridges carry 94,849 vehicle crossings a day

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.

44.2% of Chautauqua County's bridges have passed the 50-year mark

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.

One structure carries 15.9% of the county's Poor-condition bridge traffic

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.

When Chautauqua County's bridges were built

559 bridges with a recorded construction year, grouped by decade

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.

Source FHWA National Bridge Inventory (year built) As of 2024 NBI release

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

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.

Bridge inventory size and condition shares for Chautauqua County and the 5 New York counties closest to it in inventory size
County Bridges Poor
Steuben County 627 4.1%
Monroe County 615 10.9%
Chautauqua County (this page) 559 9.7%
Queens County 514 7.4%
Oneida County 496 11.5%
Cattaraugus County 484 6.2%

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.

Nationwide counties with similar inventory size or average build year

Two NBI-derived peer sets for Chautauqua County, both outside New York so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside NY (559 bridges here).

Similar average build year

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.

All 559 Good 246 Fair 259 Poor 54

All bridges (559)

RTE I90

Fair

Over: BEAVER CREEK

3.2 MI SW OF DUNKIRK INT, Chautauqua, NY

Built 1957 Load: 93.4 t ADT: 8,444

RTE I90

Fair

Over: LIT CANADAWAY CRK

5.8 MI SW OF DUNKIRK INT, Chautauqua, NY

Built 1957 Load: 93.6 t ADT: 16,888

RTE 5

Fair

Over: BOURNES CREEK

2.6 MI NE JCT RTS 5 + 17, Chautauqua, NY

Built 1954 Load: 97.2 t ADT: 2,561

RTE 39

Fair

Over: E BR SILVER CREEK

1.3 MI W OF NASHVILLE, Chautauqua, NY

Built 1991 Load: 99.9 t ADT: 1,721

WENTWORTH ROAD

Fair

Over: W BR CONEWANGO CK

1.3 MI WEST OF HAMLET, Chautauqua, NY

Built 1988 Load: 99.9 t ADT: 30

RTE I90

Fair

Over: TRIB TO LAKE ERIE

4 MI NE OF EXIT 60 - I90, Chautauqua, NY

Built 1957 Load: 99.9 t ADT: 9,423

RTE I90

Fair

Over: TRIB TO LAKE ERIE

4 MI NE OF EXIT 60 - I90, Chautauqua, NY

Built 1957 Load: 99.9 t ADT: 8,444

RTE I90

Fair

Over: BEAVER CREEK

3.2 MI SW OF DUNKIRK INT, Chautauqua, NY

Built 1957 Load: 99.9 t ADT: 9,423

RTE I90

Fair

Over: BEAVER CREEK

3.2 MI NE OF DUNKIRK INT, Chautauqua, NY

Built 1956 Load: 99.9 t ADT: 22,749

SOUTH MAIN STREET

Good

Over: CHADAKOIN RIVER

AT JAMESTOWN, Chautauqua, NY

Built 1872 Load: 21.4 t ADT: 5,837

RTE 62

Good

Over: INDIAN BROOK

1.0 MI N JCT RTS 62 & 394, Chautauqua, NY

Built 1998 Load: 24.5 t ADT: 822

RTE I86

Good

Over: PRENDERGAST CREEK

5.0MI.E.JCT.RTES 76 & 17, Chautauqua, NY

Built 1982 Load: 25.4 t ADT: 4,515

RTE I86

Good

Over: WAIT CORNERS ROAD

1.6 MI E JCT I86 & SH 37, Chautauqua, NY

Built 1982 Load: 26.3 t ADT: 4,515

RTE I86

Good

Over: WALL STREET

4.8MI.E.JCT.RTES 76 & 17, Chautauqua, NY

Built 1982 Load: 26.6 t ADT: 4,515

SERVICE ROAD

Good

Over: BEMUS CREEK

0.1 MI SW JT RTS 17 & 430, Chautauqua, NY

Built 1981 Load: 27.2 t ADT: 47

COUNTY ROAD 70

Good

Over: BR CASSADAGA CRK

2.3 MILES NW OF GERRY, Chautauqua, NY

Built 1987 Load: 28.8 t ADT: 1,441

GLASGOW ROAD

Good

Over: FREDONIA RES TRIB

1.5 MI N OF CASSADAGA, Chautauqua, NY

Built 1970 Load: 29.0 t ADT: 483

COUNTY ROAD 52

Good

Over: TRB DEWITTVLE CRK

.4 MILE NE OF DEWITTVILLE, Chautauqua, NY

Built 1932 Load: 29.4 t ADT: 166

COUNTY ROAD 380

Good

Over: TRIB BEAR CREEK

3 MI S OF STOCKTON, Chautauqua, NY

Built 1986 Load: 29.4 t ADT: 2,061

RTE 474

Good

Over: GOOSE CREEK

3 MI SW JCT SH 394 &SH474, Chautauqua, NY

Built 1975 Load: 29.9 t ADT: 2,498

COUNTY ROAD 10

Good

Over: SLIPPERY ROCK CRK

0.5 MI NORTH OF BROCTON, Chautauqua, NY

Built 1993 Load: 29.9 t ADT: 1,286

COUNTY ROAD 65

Good

Over: TB BROKENSTRAW CK

1.5 MI NORTH OF CLYMER, Chautauqua, NY

Built 1988 Load: 29.9 t ADT: 923

RTE 62

Good

Over: ALLEN BROOK

1.3 MI S JCT RTS 62 + 83, Chautauqua, NY

Built 1925 Load: 30.8 t ADT: 822

RTE I86

Good

Over: FRENCH CREEK

1.5MI.E.JCT.RTES 76 & 17, Chautauqua, NY

Built 1982 Load: 30.8 t ADT: 4,515

KENT SWITCH ROAD

Good

Over: BLAISDELL CREEK

2.5 MI NE OF CHERRY CREEK, Chautauqua, NY

Built 1930 Load: 30.8 t ADT: 162

COUNTY ROAD 25

Good

Over: TRB CHAUTAUQUA LK

SW END OF MAYVILLE, Chautauqua, NY

Built 1989 Load: 31.8 t ADT: 445

RTE 5

Good

Over: LAKE ERIE PK ROAD

.7 MI NE JCT SH 5 & SH380, Chautauqua, NY

Built 1930 Load: 32.7 t ADT: 3,861

RTE 5

Good

Over: BEAVER CREEK

3.1 MI NE JCT RTS 5 + 60, Chautauqua, NY

Built 1954 Load: 32.7 t ADT: 4,251

RTE 394

Good

Over: INDIAN BROOK

2.5 MI NE JCT RTS 394 &17, Chautauqua, NY

Built 1992 Load: 32.7 t ADT: 2,247

RTE 20

Good

Over: SILVER CREEK

2.6 MI NE JCT RT 20 + I90, Chautauqua, NY

Built 1915 Load: 32.7 t ADT: 5,683

RTE 322

Good

Over: CONEWANGO CREEK

1.4 MI E JCT RTS 83 + 322, Chautauqua, NY

Built 1959 Load: 32.7 t ADT: 1,248

RTE I86

Good

Over: BRANCH CONEWANGO CREEK

.3 MILE W OF KENNEDY INT, Chautauqua, NY

Built 1968 Load: 32.7 t ADT: 5,305

RTE I86

Good

Over: BRANCH CONEWANGO CREEK

.3 MI WEST EXIT 14 OF I86, Chautauqua, NY

Built 1967 Load: 32.7 t ADT: 4,926

RTE 20

Good

Over: FREELINGS CREEK

1.9 MI SW JCT RTS 17 & 20, Chautauqua, NY

Built 1978 Load: 32.7 t ADT: 2,485

RTE I86

Good

Over: BALL CREEK

0.2MI.W.JCT.RTES 394 & 17, Chautauqua, NY

Built 1982 Load: 32.7 t ADT: 8,073

RTE 474

Good

Over: GOOSE CREEK TRIBUTARY

0.36 m S Route 43, Chautauqua, NY

Built 1986 Load: 32.7 t ADT: 2,498

RTE I86

Good

Over: MOON BROOK

0.7 MI E JCT RTS 17 + 60, Chautauqua, NY

Built 1973 Load: 32.7 t ADT: 5,296

MILL STREET

Good

Over: BEAR LAKE OUTLET

0.4 MI N OF STOCKTON, Chautauqua, NY

Built 1978 Load: 32.7 t ADT: 141

MOON ROAD

Good

Over: DRY BROOK

1.8 MI WEST OF NY RT 60, Chautauqua, NY

Built 1989 Load: 32.7 t ADT: 294

PAGE ROAD

Good

Over: TRIB CASS RUN

.7 MI EAST OF US RT 62, Chautauqua, NY

Built 1989 Load: 32.7 t ADT: 281

COUNTY ROAD 380

Good

Over: TB BEAR LAKE CRK

1.9 MILES S OF STOCKTON, Chautauqua, NY

Built 1991 Load: 32.7 t ADT: 2,213

COUNTY ROAD 318

Good

Over: CASS RUN

.2 MI WEST OF IVORY, Chautauqua, NY

Built 1985 Load: 32.7 t ADT: 695

ELM FLAT ROAD

Good

Over: BIG INLET CREEK

3 MI N OF HARTFIED, Chautauqua, NY

Built 1992 Load: 32.7 t ADT: 61

COUNTY ROAD 85

Good

Over: BNCH CHERRY CREEK

1.4 MI WEST OF CHERRY CRK, Chautauqua, NY

Built 1993 Load: 32.7 t ADT: 366

CURTIS ROAD

Good

Over: MOON BROOK

2 MI. N. OF FALCONER ST., Chautauqua, NY

Built 1997 Load: 32.7 t ADT: 303

RTE I90

Good

Over: WALKER CREEK

5.8 MI NE OF W FIELD INT, Chautauqua, NY

Built 1958 Load: 32.7 t ADT: 16,888

ARMENIAN ROAD

Good

Over: FRENCH CREEK

0.7 MI NE JCT RTS 76 & 17, Chautauqua, NY

Built 1980 Load: 33.6 t ADT: 171

COUNTY ROAD 314

Good

Over: DEWITTVILLE CREEK

AT DEWITTVILLE, Chautauqua, NY

Built 1990 Load: 34.5 t ADT: 166

KNOWLTON ROAD

Good

Over: BROKENSTRAW CREEK

1.1 MI SE OF CLYMER, Chautauqua, NY

Built 1994 Load: 34.5 t ADT: 78

STOCKTON ROAD

Good

Over: FLAG CREEK

0.5 MI W OF STOCKTON, Chautauqua, NY

Built 1991 Load: 34.5 t ADT: 1,458

Read our methodology - how this data is sourced, computed, and verified.

Related

Browse all → | Rankings →
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.