County profile · official public datasets

McKean County, PA

226 public highway bridges tracked in the FHWA National Bridge Inventory: 43.8% rated Good, 37.6% Fair, 18.6% Poor.

226
Public bridges
43.8%
Good condition
18.6%
Poor condition

The verdict

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

McKean County pairs a higher-than-median Poor-condition share among rated counties in the state with a newer average build year than the state inventory.

58th
of 67 on Poor share
18.6%
Poor-condition share
226
public highway bridges
1979
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.

McKean County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, McKean County ranks #58 of 67 Pennsylvania counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 18.6%). McKean County, Pennsylvania contains 226 public highway bridges. Roughly 43.8% are rated “Good,” 37.6% “Fair,” and 18.6% “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

226

Public highway bridges in McKean County

Good condition

43.8%

99 of 226 rated 7-9

Fair condition

37.6%

85 of 226 rated 5-6

Poor condition

18.6%

42 of 226 rated 4 or below

In-state Poor-share rank

#58 of 67

Among Pennsylvania counties with 5+ bridges, lower share ranks better

Condition distribution

Share of 226 NBI-tracked bridges by lowest applicable component rating.

Good
43.8% (99)
Fair
37.6% (85)
Poor
18.6% (42)

McKean County's Poor-condition bridges carry 24,316 vehicle crossings a day

That is 7% of the county's reported daily bridge traffic on 18.2% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 593 crossings a day against 1,859 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 225 of 226 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

39.8% of McKean County's bridges have passed the 50-year mark

90 of the 226 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 43.8% 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 19.6% of the county's Poor-condition bridge traffic

SR 4013 over BOLIVAR RUN, built 1936, carries 4,769 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 42-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 24,316 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

When McKean County's bridges were built

226 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 2010s, when 44 of the county's bridges still in the inventory were built, which is 19.5% of those with a recorded year. That cohort is now 5 to 14 years old in the 2024 inventory. Its average build year is 1979, 9 years newer than the Pennsylvania average of 1970.

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

How McKean County compares with Pennsylvania's closest counties by inventory size

The 5 Pennsylvania counties nearest McKean County in number of bridges, with their condition splits. Its 18.6% Poor share is the 6th-lowest of these 6. Its average build year of 1979 against a peer-group mean of 1974 is 5 years newer.

Showing the 5 closest of 66 Pennsylvania counties eligible for comparison.

Bridge inventory size and condition shares for McKean County and the 5 Pennsylvania counties closest to it in inventory size
County Bridges Poor
Huntingdon County 238 10.9%
Lebanon County 228 8.8%
McKean County (this page) 226 18.6%
Warren County 217 18.4%
Clinton County 212 2.4%
Potter County 207 13%

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 McKean 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 McKean County, both outside Pennsylvania so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside PA (226 bridges here).

Similar average build year

Nearest mean year-built outside PA (1979 here).

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

All 226 Good 99 Fair 85 Poor 42

All bridges (226)

T433 BARBERTOWN RD

Poor

Over: KING RUN

400 FT SW OF KINGS RUN RD, McKean, PA

Built 1960 Load: 20.0 t ADT: 100

T-336 HIGH STREET

Poor

Over: MINARD RUN

600 FT SOUTH OF SR 770, McKean, PA

Built 1931 Load: 21.8 t ADT: 250

NORTH 4TH STREET

Poor

Over: FOSTER BROOK

400 FT NORTH OF SR 346, McKean, PA

Built 1980 Load: 21.8 t ADT: 10

WILLARD AVENUE

Poor

Over: BENNETT BROOK

500 FT WEST OF SR 4009, McKean, PA

Built 1978 Load: 22.7 t ADT: 425

T-300 WEST KANE RD

Poor

Over: EAST BR TIONESTA CREEK

2.9 MI W OF PA 66, McKean, PA

Built 1960 Load: 23.6 t ADT: 50

SR 246-PA 246

Poor

Over: BAKER RUN

RIXFORD, McKean, PA

Built 1925 Load: 26.3 t ADT: 1,037

SR 4011

Poor

Over: BENNETT BROOK

BRADFORD, McKean, PA

Built 1940 Load: 27.2 t ADT: 160

T408 LOWER PORTAGE

Poor

Over: SKINNER CREEK

300 S OF SKINNER CRK RD, McKean, PA

Built 1920 Load: 29.9 t ADT: 100

T-374 CLARK STREET

Poor

Over: S BR KNAPP CREEK

300 FT NORTH OF SR 246, McKean, PA

Built 1955 Load: 30.8 t ADT: 20

SR 46-PA 46

Poor

Over: COLEGROVE BROOK

COLEGROVE, McKean, PA

Built 1927 Load: 31.8 t ADT: 500

SR 646-PA 646

Poor

Over: PENNBROOK RUN

1 MI N GILMORE, McKean, PA

Built 1930 Load: 31.8 t ADT: 979

SR 246-PA 246

Poor

Over: KENDALL CREEK

CORWINS CORNER, McKean, PA

Built 1954 Load: 32.7 t ADT: 1,037

SR 346-PA 346

Poor

Over: TRAM HOLLOW RUN

W DUKE CENTER, McKean, PA

Built 1924 Load: 32.7 t ADT: 1,177

SR 3003

Poor

Over: LANIGAN RUN

BURNING WELL, McKean, PA

Built 1948 Load: 32.7 t ADT: 22

SR 46-PA 46

Poor

Over: TUNUNGWANT CREEK

BRADFORD N KENDALL AVE, McKean, PA

Built 1973 Load: 33.6 t ADT: 4,642

SR 4013

Poor

Over: BOLIVAR RUN

BRADFORD, McKean, PA

Built 1936 Load: 33.6 t ADT: 4,769

SR 6-US 6

Poor

Over: IRON HOLLOW RUN

3 MI SE SMETHPORT, McKean, PA

Built 1921 Load: 34.5 t ADT: 1,852

SR 346-PA 346

Poor

Over: WILLOW CREEK

9 MI W BRADFORD, McKean, PA

Built 1940 Load: 35.4 t ADT: 520

SR 3002

Poor

Over: TWO MILE RUN

LUDLOW, McKean, PA

Built 1941 Load: 35.4 t ADT: 120

T-375 CROSBY CROSS

Poor

Over: POTATO CREEK

400 FT SW OF SR 46, McKean, PA

Built 1988 Load: 35.4 t ADT: 160

ON TSR 405

Poor

Over: FOWLER RUN

3 MI N CORYVILLE, McKean, PA

Built 1941 Load: 36.3 t ADT: 805

SR 1006

Poor

Over: KINGS RUN

1 MI SW CERES, McKean, PA

Built 1945 Load: 41.7 t ADT: 466

T615 CROOKERHOUSE

Poor

Over: W BR TUNUNGWANT CREEK

700 FT NW OF T-498, McKean, PA

Built 1910 Load: 41.7 t ADT: 150

T-470 GARDEAU ROAD

Poor

Over: HALF MILE RUN

2500 FT NORTH OF GARDEAU, McKean, PA

Built 1950 Load: 43.5 t ADT: 40

HARRISBURG RUN RD

Poor

Over: HARRISBURG RUN

1.5 MI NORTH OF SR 346, McKean, PA

Built 1920 Load: 46.3 t ADT: 150

T325 MARVINDALE RD

Poor

Over: MARVIN CREEK

1000 FT WEST OF US 6, McKean, PA

Built 1938 Load: 60.8 t ADT: 30

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.