Total bridges
175
Public highway bridges in Madison County
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.
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
- pre-1900 8
Built before 1900
8 bridges
- 1910s 1
1910–1919
1 bridges
- 1920s 10
1920–1929
10 bridges
- 1930s 11
1930–1939
11 bridges
- 1940s 10
1940–1949
10 bridges
- 1950s
1950–1959
39 bridges
- 1960s
1960–1969
16 bridges
- 1970s 7
1970–1979
7 bridges
- 1980s
1980–1989
16 bridges
- 1990s
1990–1999
19 bridges
- 2000s
2000–2009
16 bridges
- 2010s 13
2010–2019
13 bridges
- 2020s 9
2020–2029
9 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).
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.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Ontario County | 178 | 40.4% | 51.7% | 7.9% | 1973 |
| Madison County (this page) | 175 | 37.7% | 53.7% | 8.6% | 1968 |
| Schoharie County | 174 | 37.4% | 54.6% | 8% | 1972 |
| Lewis County | 167 | 33.5% | 50.3% | 16.2% | 1972 |
| Livingston County | 165 | 38.8% | 56.4% | 4.8% | 1979 |
| Richmond County | 164 | 30.5% | 67.7% | 1.8% | 1970 |
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).
- Smith County, MS · 175 bridges
- Warren County, MS · 175 bridges
- Hamilton County, NE · 175 bridges
- San Miguel County, NM · 175 bridges
Similar average build year
Nearest mean year-built outside NY (1968 here).
- Montgomery County, PA · avg 1968 · 828 bridges
- San Joaquin County, CA · avg 1968 · 644 bridges
- Providence County, RI · avg 1968 · 476 bridges
- Imperial County, CA · avg 1968 · 444 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Poor-condition bridges (15)
OLD NORTH COURT ST
PoorOver: OLD ERIE CANAL
N.WAMPSVILLE OVER CANAL, Madison, NY
Built 1865 Load: 10.0 t ADT: 21
RTE 13
PoorOver: COWASELON CREEK
JCT RT 13 + COWASELON CK, Madison, NY
Built 1976 Load: 18.1 t ADT: 4,684
RTE I90
PoorOver: COWASELON CREEK
0.9 m E I-90 Exit 34, Madison, NY
Built 1954 Load: 22.7 t ADT: 15,647
CANASERAGA ROAD
PoorOver: OLD ERIE CANAL
W CANASTOTA E CHITTENANGO, Madison, NY
Built 1865 Load: 23.6 t ADT: 454
CR 3
PoorOver: 90IX RTE I90
6.2 MI W JCT I90<INT 34, Madison, NY
Built 1953 Load: 25.4 t ADT: 2,569
RTE I90
PoorOver: N LAKE ST
4 MI W EXIT 33 OF I90, Madison, NY
Built 1953 Load: 28.5 t ADT: 31,294
MAIN STREET
PoorOver: OLD ERIE CANAL
.2 MI INT 90 RT 5 N., Madison, NY
Built 1927 Load: 29.0 t ADT: 6,179
COBB STREET
PoorOver: OLD ERIE CANAL
AT CITY OF ONEIDA, Madison, NY
Built 1925 Load: 30.8 t ADT: 756
CR65 MILL STREET
PoorOver: E BR LIMESTONE CREEK
AT EARLVILLE, Madison, NY
Built 1932 Load: 32.7 t ADT: 774
RTE 46
PoorOver: 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
PoorOver: OLD ERIE CANAL
W CANASTOTA E CHITTENANGO, Madison, NY
Built 1927 Load: 34.5 t ADT: 540
LYON ROAD
PoorOver: CHITTENANGO CREEK
AT NELSON, Madison, NY
Built 1932 Load: 37.2 t ADT: 294
RTE I90
PoorOver: COWASELON CREEK
0.9 m E I-90 Exit 34, Madison, NY
Built 1954 Load: 37.2 t ADT: 17,197
RTE 46
PoorOver: ONEIDA CREEK
0.1 MI N JCT RTS 46 & 316, Madison, NY
Built 1957 Load: 42.6 t ADT: 3,427
LAKEPORT ROAD
PoorOver: 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
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.