County profile · official public datasets

New York County, NY

247 public highway bridges tracked in the FHWA National Bridge Inventory: 13.4% rated Good, 76.9% Fair, 9.7% Poor.

247
Public bridges: 13.4%
Good condition: 9.7%
Poor condition

The verdict

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

New York County pairs a higher-than-median Poor-condition share among rated counties in the state with an older average build year than the state inventory.

33rd
of 62 on Poor share: 9.7%
Poor-condition share: 247
public highway bridges: 1945
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.

New York County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, New York County ranks #33 of 62 New York counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 9.7%). New York County, New York contains 247 public highway bridges. Roughly 13.4% are rated “Good,” 76.9% “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

247

Public highway bridges in New York County

Good condition

13.4%

33 of 247 rated 7-9

Fair condition

76.9%

190 of 247 rated 5-6

Poor condition

9.7%

24 of 247 rated 4 or below

In-state Poor-share rank

#33 of 62

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

Condition distribution

Share of 247 NBI-tracked bridges by lowest applicable component rating.

Good

13.4% (33)

Fair

76.9% (190)

Poor

9.7% (24)

New York County's Poor-condition bridges carry 964,577 vehicle crossings a day

That is 13.2% of the county's reported daily bridge traffic on 10.7% of its bridges: Poor-condition structures carry more traffic than their share of the inventory. Each Poor bridge averages 45,932 crossings a day against 35,338 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 196 of 247 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

89.1% of New York County's bridges have passed the 50-year mark

220 of the 247 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 13.4% 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 14.1% of the county's Poor-condition bridge traffic

RTE 907L over 34TH STREET 35TH STREET, built 1966, carries 135,883 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 24-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 964,577 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

pre-1900

13
1900s

17
1910s

1
1920s

15
1930s

82
1940s

7
1950s

35
1960s

49
1970s

1
1980s

3
1990s

3
2000s

11
2010s

8
2020s

2

What this shows Construction peaked in the 1930s, when 82 of the county's bridges still in the inventory were built, which is 33.2% of those with a recorded year. That cohort is now 85 to 94 years old in the 2024 inventory. Its average build year is 1945, 27 years older than the New York average of 1972.

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

The 5 New York counties nearest New York County in number of bridges, with their condition splits. Its 9.7% Poor share is the 2nd-lowest of these 6. Its average build year of 1945 against a peer-group mean of 1967 is 22 years older.

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

Bridge inventory size and condition shares for New York County and the 5 New York counties closest to it in inventory size
County	Bridges	Good	Fair	Poor	Avg. built
Chemung County	256	38.7%	54.7%	6.6%	1977
Herkimer County	248	46.8%	41.1%	12.1%	1973
Rockland County	248	26.6%	63.3%	10.1%	1970
New York County (this page)	247	13.4%	76.9%	9.7%	1945
Columbia County	243	17.7%	64.2%	18.1%	1963
Kings County	242	24.8%	64%	11.2%	1953

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

Similar inventory size

Nearest county inventories outside NY (247 bridges here).

Houston County, AL · 247 bridges
Madera County, CA · 247 bridges
Shelby County, IN · 247 bridges
Chickasaw County, MS · 247 bridges

Similar average build year

Nearest mean year-built outside NY (1945 here).

Presidio County, TX · avg 1946 · 75 bridges
Irion County, TX · avg 1944 · 50 bridges
Upton County, TX · avg 1947 · 39 bridges
Crane County, TX · avg 1943 · 19 bridges

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

All 247 Good 33 Fair 190 Poor 24

Fair-condition bridges (190)

Sort:

New York County Bridge Snapshot

Condition distribution

New York County's Poor-condition bridges carry 964,577 vehicle crossings a day

89.1% of New York County's bridges have passed the 50-year mark

One structure carries 14.1% of the county's Poor-condition bridge traffic

How New York 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

Fair-condition bridges (190)

I-495

THIRD AVENUE

RAMPS TO/FROM HRD

WEST 35TH STREET

WEST BUS RAMP

EAST BUS RAMP

WEST 55TH STREET

WEST 56TH STREET

RTE 9

RTE 25

WEST 134TH STREET

WEST 39TH STREET

RTE 907V

EAST139TH STREET

WEST 52ND STREET

WEST 57TH STREET

TUDOR CITY PLACE

WEST 51ST STREET

RTE 907V

WEST 47TH STREET

WEST 53RD STREET

RAMP HR 11

WEST 43RD STREET

WEST 44TH STREET

WEST 45TH STREET

WEST 46TH STREET

WEST 48TH STREET

WEST 49TH STREET

WEST 58TH STREET

RTE 907P

W. 36TH ST & DYER

RTE 495

N.ACCESS AT 145TH

TUNNEL ENT STREET

RTE 9

EAST 97TH STREET

AMSTERDAM AVENUE

RTE 907V

WEST 42ND STREET

WEST 41ST STREET

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