Total bridges
205
Public highway bridges in Montgomery County
County profile · official public datasets
Montgomery County, NY
205 public highway bridges tracked in the FHWA National Bridge Inventory: 34.6% rated Good, 54.1% Fair, 11.2% Poor.
- 205
- Public bridges
- 34.6%
- Good condition
- 11.2%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Montgomery 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.
- 42nd
- of 62 on Poor share
- 11.2%
- Poor-condition share
- 205
- public highway bridges
- 1965
- 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.
Montgomery County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Montgomery County ranks #42 of 62 New York counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 11.2%). Montgomery County, New York contains 205 public highway bridges. Roughly 34.6% are rated “Good,” 54.1% “Fair,” and 11.2% “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
34.6%
71 of 205 rated 7-9
Fair condition
54.1%
111 of 205 rated 5-6
Poor condition
11.2%
23 of 205 rated 4 or below
In-state Poor-share rank
#42 of 62
Among New York counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 205 NBI-tracked bridges by lowest applicable component rating.
Good 34.6% (71)
Fair 54.1% (111)
Poor 11.2% (23)
Montgomery County's Poor-condition bridges carry 66,649 vehicle crossings a day
That is 8.6% of the county's reported daily bridge traffic on 10.8% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 3,030 crossings a day against 3,473 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 203 of 205 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
60.5% of Montgomery County's bridges have passed the 50-year mark
124 of the 205 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 34.6% 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 31.4% of the county's Poor-condition bridge traffic
RTE I90 over PED/BIKE PATH, built 1955, carries 20,908 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 23-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 66,649 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Montgomery County's bridges were built
205 bridges with a recorded construction year, grouped by decade
- pre-1900 2
Built before 1900
2 bridges
- 1900s 10
1900–1909
10 bridges
- 1910s 5
1910–1919
5 bridges
- 1920s 4
1920–1929
4 bridges
- 1930s
1930–1939
44 bridges
- 1940s 2
1940–1949
2 bridges
- 1950s
1950–1959
35 bridges
- 1960s 15
1960–1969
15 bridges
- 1970s 15
1970–1979
15 bridges
- 1980s 12
1980–1989
12 bridges
- 1990s 13
1990–1999
13 bridges
- 2000s
2000–2009
34 bridges
- 2010s 13
2010–2019
13 bridges
- 2020s 1
2020–2029
1 bridges
What this shows Construction peaked in the 1930s, when 44 of the county's bridges still in the inventory were built, which is 21.5% of those with a recorded year. That cohort is now 85 to 94 years old in the 2024 inventory. Its average build year is 1965, 7 years older than the New York average of 1972.
How Montgomery County compares with New York's closest counties by inventory size
The 5 New York counties nearest Montgomery County in number of bridges, with their condition splits. Its 11.2% Poor share is the 2nd-lowest of these 6. Its average build year of 1965 against a peer-group mean of 1975 is 10 years older.
Showing the 5 closest of 61 New York counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Tioga County | 220 | 38.6% | 52.3% | 9.1% | 1976 |
| Montgomery County (this page) | 205 | 34.6% | 54.1% | 11.2% | 1965 |
| Clinton County | 201 | 39.3% | 48.3% | 12.4% | 1979 |
| Tompkins County | 192 | 38.5% | 46.9% | 14.6% | 1973 |
| Cortland County | 189 | 33.3% | 49.7% | 16.9% | 1974 |
| Franklin County | 189 | 47.6% | 40.7% | 11.6% | 1975 |
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 Montgomery 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 Montgomery County, both outside New York so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside NY (205 bridges here).
- Geneva County, AL · 205 bridges
- Russell County, AL · 205 bridges
- Wilson County, KS · 205 bridges
- Bell County, KY · 205 bridges
Similar average build year
Nearest mean year-built outside NY (1965 here).
- Windsor County, VT · avg 1965 · 483 bridges
- Bedford County, PA · avg 1965 · 417 bridges
- Crawford County, PA · avg 1965 · 399 bridges
- Harper County, KS · avg 1965 · 372 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Fair-condition bridges (111)
RTE I90
FairOver: RTE 5S OLD RR (BIKE/PED
0.6 MI E JCT RTS 5S & 288, Montgomery, NY
Built 1953 Load: 49.0 t ADT: 21,178
FLORIDA AVE
FairOver: S CHUCTANUNDA CRK
IN SOUTH AMSTERDAM, Montgomery, NY
Built 1980 Load: 50.8 t ADT: 165
LOGTOWN ROAD
FairOver: AURIES CREEK
2.0 MI SW OF GLEN, Montgomery, NY
Built 2003 Load: 51.7 t ADT: 459
RTE I90
FairOver: RTE 10
.5 MI W OF I90 EXIT 29, Montgomery, NY
Built 2000 Load: 52.6 t ADT: 20,908
WEST AMES RD
FairOver: CANAJOHARIE CREEK
.2 MI WEST OF AMES, Montgomery, NY
Built 1938 Load: 54.4 t ADT: 398
RTE 80
FairOver: OTSQUENE CREEK
3.7 MI W JCT RTS 5S & 80, Montgomery, NY
Built 1984 Load: 55.3 t ADT: 845
RTE I90
FairOver: INCINERATOR ROAD CANAJO
JCT I-90 < CANAJOHARIE CK, Montgomery, NY
Built 1955 Load: 56.2 t ADT: 20,908
LOGTOWN ROAD
FairOver: CORNISH CREEK
1.5 MILES WEST OF GLEN, Montgomery, NY
Built 2003 Load: 59.0 t ADT: 459
HILLTOP ROAD
FairOver: FLAT CREEK
2.8 MI S OF SPRAKERS, Montgomery, NY
Built 2005 Load: 62.6 t ADT: 123
WILLOW STREET
FairOver: N CHUCTANUNDA CK
IN CITY OF AMSTERDAM, Montgomery, NY
Built 1978 Load: 67.1 t ADT: 112
LATIMER HILL ROAD
FairOver: FLAT CREEK
5.3 MI E OF AMES, Montgomery, NY
Built 2006 Load: 68.0 t ADT: 195
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.