Total bridges
220
Public highway bridges in Tioga County
County profile · official public datasets
Tioga County, NY
220 public highway bridges tracked in the FHWA National Bridge Inventory: 38.6% rated Good, 52.3% Fair, 9.1% Poor.
- 220
- Public bridges
- 38.6%
- Good condition
- 9.1%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Tioga County posts a better-than-median Poor-condition share among rated counties in the state across mid-size county bridge inventory.
- Top 47%
- lowest Poor share in state
- 9.1%
- Poor-condition share
- 220
- public highway bridges
- 1976
- 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.
Tioga County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Tioga County ranks #29 of 62 New York counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 9.1%). Tioga County, New York contains 220 public highway bridges. Roughly 38.6% are rated “Good,” 52.3% “Fair,” and 9.1% “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
38.6%
85 of 220 rated 7-9
Fair condition
52.3%
115 of 220 rated 5-6
Poor condition
9.1%
20 of 220 rated 4 or below
In-state Poor-share rank
#29 of 62
Among New York counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 220 NBI-tracked bridges by lowest applicable component rating.
Good 38.6% (85)
Fair 52.3% (115)
Poor 9.1% (20)
Tioga County's Poor-condition bridges carry 36,822 vehicle crossings a day
That is 5.3% of the county's reported daily bridge traffic on 9.2% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 1,841 crossings a day against 2,782 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 218 of 220 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
54.1% of Tioga County's bridges have passed the 50-year mark
119 of the 220 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 38.6% 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 23.3% of the county's Poor-condition bridge traffic
RTE 17 over ITHACA CENTRAL RR, built 1973, carries 8,583 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 20-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 36,822 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Tioga County's bridges were built
220 bridges with a recorded construction year, grouped by decade
- pre-1900 1
Built before 1900
1 bridges
- 1900s 1
1900–1909
1 bridges
- 1920s 1
1920–1929
1 bridges
- 1930s
1930–1939
25 bridges
- 1940s 11
1940–1949
11 bridges
- 1950s 10
1950–1959
10 bridges
- 1960s
1960–1969
40 bridges
- 1970s
1970–1979
41 bridges
- 1980s
1980–1989
23 bridges
- 1990s 12
1990–1999
12 bridges
- 2000s
2000–2009
18 bridges
- 2010s
2010–2019
32 bridges
- 2020s 5
2020–2029
5 bridges
What this shows Construction peaked in the 1970s, when 41 of the county's bridges still in the inventory were built, which is 18.6% of those with a recorded year. That cohort is now 45 to 54 years old in the 2024 inventory. Its average build year (1976) matches the New York average (1972).
How Tioga County compares with New York's closest counties by inventory size
The 5 New York counties nearest Tioga County in number of bridges, with their condition splits. Its 9.1% Poor share is the 2nd-lowest of these 6. Its average build year of 1976 against a peer-group mean of 1974 is in line with the group.
Showing the 5 closest of 61 New York counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Oswego County | 233 | 28.3% | 61.4% | 10.3% | 1975 |
| Saratoga County | 228 | 46.9% | 45.6% | 7.5% | 1974 |
| Greene County | 227 | 36.6% | 53.7% | 9.7% | 1978 |
| Tioga County (this page) | 220 | 38.6% | 52.3% | 9.1% | 1976 |
| Montgomery County | 205 | 34.6% | 54.1% | 11.2% | 1965 |
| Clinton County | 201 | 39.3% | 48.3% | 12.4% | 1979 |
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 Tioga 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 Tioga County, both outside New York so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside NY (220 bridges here).
- Bibb County, GA · 220 bridges
- Decatur County, IN · 220 bridges
- Dubois County, IN · 220 bridges
- Taylor County, IA · 220 bridges
Similar average build year
Nearest mean year-built outside NY (1976 here).
- Marion County, IN · avg 1976 · 958 bridges
- Mohave County, AZ · avg 1976 · 641 bridges
- Comanche County, OK · avg 1976 · 593 bridges
- Prince George's County, MD · avg 1976 · 576 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Fair-condition bridges (115)
RTE 17
FairOver: COUNTY ROAD 4
3.5 MI NE JCT RTS 17 + 34, Tioga, NY
Built 1973 Load: 56.2 t ADT: 8,583
RTE 17
FairOver: COUNTY ROAD 4
3.5 MI NE JCT RTS 17 + 34, Tioga, NY
Built 1973 Load: 57.2 t ADT: 8,583
PINE STREET
FairOver: DRY BROOK
IN WAVERLY, Tioga, NY
Built 1977 Load: 58.1 t ADT: 550
RTE 17C
FairOver: LIT NANTICOKE CRK
NW OF HIAWATHA ISLAND, Tioga, NY
Built 2001 Load: 59.0 t ADT: 2,343
RTE 96B
FairOver: WILLSEYVILLE CREEK
5.2 MILES NE OF CANDOR, Tioga, NY
Built 2001 Load: 59.0 t ADT: 3,414
DAY HOLLOW ROAD
FairOver: LITTLE NANTICOKE CREEK
4.0 MI E OF OWEGO, Tioga, NY
Built 2004 Load: 59.0 t ADT: 1,934
RTE 34
FairOver: RAILROAD AVENUE ITHACA
0.2 MI E OF SPENCER, Tioga, NY
Built 1941 Load: 62.9 t ADT: 4,116
RTE 38
FairOver: NILES CREEK
1.9 MI SOUTH OF BERKSHIRE, Tioga, NY
Built 1959 Load: 65.3 t ADT: 3,479
RTE 96B
FairOver: PROSPECT VALLEY CREEK
3.8 MILES NE OF CANDOR, Tioga, NY
Built 2007 Load: 68.0 t ADT: 3,414
CATATONK HILL RD.
FairOver: CATATONK CREEK
0.6 MI NW OF CATATONK, Tioga, NY
Built 1961 Load: 68.9 t ADT: 529
RTE 17C
FairOver: THORNE HOLLOW CRK
3.0 MI W OF OWEGO, Tioga, NY
Built 1995 Load: 81.6 t ADT: 2,705
RTE 79
FairOver: E BR OWEGO CREEK
800ft E of RT 38, Tioga, NY
Built 2001 Load: 84.4 t ADT: 2,971
GLEN MARY DRIVE
FairOver: THORN HOLLOW CREEK
2.4 MI W OF OWEGO - CR906, Tioga, NY
Built 1985 Load: 88.0 t ADT: 1,120
RTE 17
FairOver: HUNTS CREEK
3.8 MI NE JCT SH417&SH275, Tioga, NY
Built 1968 Load: 99.9 t ADT: 7,883
RTE 17
FairOver: HUNTS CREEK
3.8 MI NE JCT SH417&SH275, Tioga, NY
Built 1968 Load: 99.9 t ADT: 7,883
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.