County profile · official public datasets

Madison County, NY

175 public highway bridges tracked in the FHWA National Bridge Inventory: 37.7% rated Good, 53.7% Fair, 8.6% Poor.

175
Public bridges
37.7%
Good condition
8.6%
Poor condition

The verdict

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

Madison County posts a better-than-median Poor-condition share among rated counties in the state across mid-size county bridge inventory.

Top 42%
lowest Poor share in state
8.6%
Poor-condition share
175
public highway bridges
1968
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.

Madison County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Madison County ranks #26 of 62 New York counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 8.6%). Madison County, New York contains 175 public highway bridges. Roughly 37.7% are rated “Good,” 53.7% “Fair,” and 8.6% “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

175

Public highway bridges in Madison County

Good condition

37.7%

66 of 175 rated 7-9

Fair condition

53.7%

94 of 175 rated 5-6

Poor condition

8.6%

15 of 175 rated 4 or below

In-state Poor-share rank

#26 of 62

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

Condition distribution

Share of 175 NBI-tracked bridges by lowest applicable component rating.

Good
37.7% (66)
Fair
53.7% (94)
Poor
8.6% (15)

Madison County's Poor-condition bridges carry 94,971 vehicle crossings a day

That is 21% of the county's reported daily bridge traffic on 8.6% of its bridges: Poor-condition structures carry more traffic than their share of the inventory. Each Poor bridge averages 6,331 crossings a day against 1,949 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 175 of 175 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

56% of Madison County's bridges have passed the 50-year mark

98 of the 175 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 37.7% 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 33% of the county's Poor-condition bridge traffic

RTE I90 over N LAKE ST, built 1953, carries 31,294 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 15-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 94,971 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

When Madison County's bridges were built

175 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 1950s, when 39 of the county's bridges still in the inventory were built, which is 22.3% of those with a recorded year. That cohort is now 65 to 74 years old in the 2024 inventory. Its average build year (1968) matches the New York average (1972).

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

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

The 5 New York counties nearest Madison County in number of bridges, with their condition splits. Its 8.6% Poor share is the 5th-lowest of these 6. Its average build year of 1968 against a peer-group mean of 1973 is 5 years older.

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

Bridge inventory size and condition shares for Madison County and the 5 New York counties closest to it in inventory size
County Bridges Poor
Ontario County 178 7.9%
Madison County (this page) 175 8.6%
Schoharie County 174 8%
Lewis County 167 16.2%
Livingston County 165 4.8%
Richmond County 164 1.8%

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

Similar inventory size

Nearest county inventories outside NY (175 bridges here).

Similar average build year

Nearest mean year-built outside NY (1968 here).

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

All 175 Good 66 Fair 94 Poor 15

All bridges (175)

River Road

Good

Over: Kingsley Brook

JTN at RIVER RD & BRIGGS, Madison, NY

Built 2023 Load: 51.7 t ADT: 1,412

FORKS ROAD

Good

Over: UNADILLA RIVER

FORKS ROAD, Madison, NY

Built 1990 Load: 51.7 t ADT: 556

BINGLEY ROAD

Good

Over: CHITTENANGO CREEK

2.6 MI NE OF CAZENOVIA, Madison, NY

Built 2004 Load: 52.6 t ADT: 177

CR78 SWAMP ROAD

Good

Over: SANGERFIELD RIVER

2.5 MI E OF GORTON LAKE, Madison, NY

Built 2005 Load: 53.5 t ADT: 239

OXBOW ROAD

Good

Over: ONEIDA CREEK

5 MI NORTH OF MORRISVILLE, Madison, NY

Built 2018 Load: 56.1 t ADT: 2,019

WOOD ROAD

Good

Over: E BR TIOUGHNIOGA RIVER

1.25 MI SE OF DERUYTER, Madison, NY

Built 2009 Load: 56.3 t ADT: 46

Creek Road

Good

Over: Cowaselon Creek

Creek Rd/Cowaleson Crek, Madison, NY

Built 2022 Load: 61.7 t ADT: 571

GLASS FACTORY RD

Good

Over: ONEIDA CREEK

2.5 MI N OF MORRISVILLE, Madison, NY

Built 1955 Load: 63.5 t ADT: 95

RTE 46

Good

Over: CSX Trans/ Amtrak

NORTH END OF ONEIDA, Madison, NY

Built 2008 Load: 65.3 t ADT: 5,991

Larkin Rd

Good

Over: Tributary of Sangerfield

0.3 mi East of Poolville, Madison, NY

Built 2022 Load: 75.3 t ADT: 678

OLD NORTH COURT ST

Poor

Over: OLD ERIE CANAL

N.WAMPSVILLE OVER CANAL, Madison, NY

Built 1865 Load: 10.0 t ADT: 21

RTE 13

Poor

Over: COWASELON CREEK

JCT RT 13 + COWASELON CK, Madison, NY

Built 1976 Load: 18.1 t ADT: 4,684

RTE I90

Poor

Over: COWASELON CREEK

0.9 m E I-90 Exit 34, Madison, NY

Built 1954 Load: 22.7 t ADT: 15,647

CANASERAGA ROAD

Poor

Over: OLD ERIE CANAL

W CANASTOTA E CHITTENANGO, Madison, NY

Built 1865 Load: 23.6 t ADT: 454

CR 3

Poor

Over: 90IX RTE I90

6.2 MI W JCT I90<INT 34, Madison, NY

Built 1953 Load: 25.4 t ADT: 2,569

RTE I90

Poor

Over: N LAKE ST

4 MI W EXIT 33 OF I90, Madison, NY

Built 1953 Load: 28.5 t ADT: 31,294

MAIN STREET

Poor

Over: OLD ERIE CANAL

.2 MI INT 90 RT 5 N., Madison, NY

Built 1927 Load: 29.0 t ADT: 6,179

COBB STREET

Poor

Over: OLD ERIE CANAL

AT CITY OF ONEIDA, Madison, NY

Built 1925 Load: 30.8 t ADT: 756

CR65 MILL STREET

Poor

Over: E BR LIMESTONE CREEK

AT EARLVILLE, Madison, NY

Built 1932 Load: 32.7 t ADT: 774

RTE 46

Poor

Over: 90 IX RTE I90

0.3 MI S JCT RTS 316 + 46, Madison, NY

Built 1954 Load: 32.7 t ADT: 5,991

HARSH ROAD

Poor

Over: OLD ERIE CANAL

W CANASTOTA E CHITTENANGO, Madison, NY

Built 1927 Load: 34.5 t ADT: 540

LYON ROAD

Poor

Over: CHITTENANGO CREEK

AT NELSON, Madison, NY

Built 1932 Load: 37.2 t ADT: 294

RTE I90

Poor

Over: COWASELON CREEK

0.9 m E I-90 Exit 34, Madison, NY

Built 1954 Load: 37.2 t ADT: 17,197

RTE 46

Poor

Over: ONEIDA CREEK

0.1 MI N JCT RTS 46 & 316, Madison, NY

Built 1957 Load: 42.6 t ADT: 3,427

LAKEPORT ROAD

Poor

Over: CSX TRANS/ AMTRAK

IN SULLIVAN, Madison, NY

Built 1979 Load: 54.4 t ADT: 5,144

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

Related

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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.