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.

Total bridges

220

Public highway bridges in Tioga County

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

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).

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

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.

Bridge inventory size and condition shares for Tioga County and the 5 New York counties closest to it in inventory size
County Bridges Poor
Oswego County 233 10.3%
Saratoga County 228 7.5%
Greene County 227 9.7%
Tioga County (this page) 220 9.1%
Montgomery County 205 11.2%
Clinton County 201 12.4%

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).

Similar average build year

Nearest mean year-built outside NY (1976 here).

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

All 220 Good 85 Fair 115 Poor 20

Poor-condition bridges (20)

BROWN ROAD

Poor

Over: EAST BRANCH OF OWEGO CRE

2.7 MI S OF BERKSHIRE, Tioga, NY

Built 1958 Load: 0.0 t ADT: 278

YOUNGS ROAD

Poor

Over: LITTLE NANTICOKE CREEK

3 MILES EAST OF OWEGO, Tioga, NY

Built 1972 Load: 3.6 t ADT: 7

VALLEY ROAD

Poor

Over: PUMPELLY CREEK

4.3 MI SE OF OWEGO, Tioga, NY

Built 1930 Load: 6.4 t ADT: 163

PROSPECT VALLEY RO

Poor

Over: PROSPECT VALLEY CREEK

3.3 MI NW OF CANDOR, Tioga, NY

Built 1980 Load: 13.0 t ADT: 368

SOUTH HILL ROAD

Poor

Over: WILSON CREEK

2.7 MI SE OF BERKSHIRE, Tioga, NY

Built 1960 Load: 14.5 t ADT: 30

LONG CREEK ROAD

Poor

Over: LONG CREEK

1.6 MI SW OF APALACHIN, Tioga, NY

Built 1978 Load: 14.5 t ADT: 301

DIAMOND VALLEY RD

Poor

Over: NEIGER HOLLOW CRK

3.2 MI NE OF SMITHBORO, Tioga, NY

Built 1940 Load: 15.4 t ADT: 261

VALLEY ROAD

Poor

Over: PUMPELLY CREEK

4.8 MI SE OF OWEGO, Tioga, NY

Built 1930 Load: 18.1 t ADT: 163

EMERY ROAD

Poor

Over: SULPHUR SPRING CREEK

3.3 MI NE OF SPENCER, Tioga, NY

Built 1972 Load: 19.6 t ADT: 47

EAST HILL ROAD

Poor

Over: CATATONK CREEK

IN SPENCER, Tioga, NY

Built 1897 Load: 25.4 t ADT: 81

RTE 17

Poor

Over: ITHACA CENTRAL RR

.2 MI SE JCT SH 17 & SH 3, Tioga, NY

Built 1973 Load: 26.9 t ADT: 8,583

RTE 282

Poor

Over: SACKETTS CREEK

.2 MI SE JCT SH17 & SH282, Tioga, NY

Built 1946 Load: 28.1 t ADT: 5,417

CAMPTOWN ROAD

Poor

Over: GLORY GULCH CREEK

3.8 MI N OF WAVERLY, Tioga, NY

Built 1938 Load: 29.0 t ADT: 123

DALTON ROAD

Poor

Over: WILSON CREEK

3.6 MI SE OF BERKSHIRE, Tioga, NY

Built 1937 Load: 29.0 t ADT: 95

RTE 38

Poor

Over: TRIB E BR OWEGOCK

0.4 MI S OF BERSHIRE, Tioga, NY

Built 1959 Load: 32.4 t ADT: 3,479

RTE 17

Poor

Over: ITHACA CENTRAL RR

0.2 MI SE JCT SH17 & SH34, Tioga, NY

Built 1973 Load: 32.7 t ADT: 8,583

VANDERPOOL ROAD

Poor

Over: PROSPECT VALLEY CREEK

2.2 MI NORTH OF CANDOR, Tioga, NY

Built 1997 Load: 33.6 t ADT: 66

KEYSTONE AVENUE

Poor

Over: 17 17 65062010 RTE 17

0.9 MI E JCT RTS 17 + 220, Tioga, NY

Built 1973 Load: 44.5 t ADT: 4,411

EVELIEN HILL ROAD

Poor

Over: EVELIEN HILL CRK

1 MI SW OF STRAITS CORNRS, Tioga, NY

Built 1985 Load: 45.4 t ADT: 47

RTE 34

Poor

Over: KING HOLLOW CREEK

4.4 MI N OF WAVERLY, Tioga, NY

Built 1937 Load: 47.2 t ADT: 4,319

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

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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.