County profile · official public datasets

Huntingdon County, PA

238 public highway bridges tracked in the FHWA National Bridge Inventory: 41.6% rated Good, 47.5% Fair, 10.9% Poor.

238
Public bridges: 41.6%
Good condition: 10.9%
Poor condition

The verdict

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

Huntingdon 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: 10.9%
Poor-condition share: 238
public highway bridges: 1966
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.

Huntingdon County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Huntingdon County ranks #28 of 67 Pennsylvania counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 10.9%). Huntingdon County, Pennsylvania contains 238 public highway bridges. Roughly 41.6% are rated “Good,” 47.5% “Fair,” and 10.9% “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

238

Public highway bridges in Huntingdon County

Good condition

41.6%

99 of 238 rated 7-9

Fair condition

47.5%

113 of 238 rated 5-6

Poor condition

10.9%

26 of 238 rated 4 or below

In-state Poor-share rank

#28 of 67

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

Condition distribution

Share of 238 NBI-tracked bridges by lowest applicable component rating.

Good

41.6% (99)

Fair

47.5% (113)

Poor

10.9% (26)

Huntingdon County's Poor-condition bridges carry 24,530 vehicle crossings a day

That is 6.2% of the county's reported daily bridge traffic on 10.5% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 981 crossings a day against 1,430 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 237 of 238 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

60.9% of Huntingdon County's bridges have passed the 50-year mark

145 of the 238 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 41.6% 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 86.4% of the county's Poor-condition bridge traffic

PA TPK (I-76)WB over T-300 & SERVICE RD, built 1969, carries 21,197 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 26-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 24,530 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

pre-1900

4
1900s

6
1910s

3
1920s

11
1930s

47
1940s

18
1950s

18
1960s

29
1970s

12
1980s

13
1990s

22
2000s

20
2010s

28
2020s

7

What this shows Construction peaked in the 1930s, when 47 of the county's bridges still in the inventory were built, which is 19.7% of those with a recorded year. That cohort is now 85 to 94 years old in the 2024 inventory. Its average build year (1966) matches the Pennsylvania average (1970).

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

The 5 Pennsylvania counties nearest Huntingdon County in number of bridges, with their condition splits. Its 10.9% Poor share is the 3rd-lowest of these 6. Its average build year of 1966 against a peer-group mean of 1973 is 7 years older.

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

Bridge inventory size and condition shares for Huntingdon County and the 5 Pennsylvania counties closest to it in inventory size
County	Bridges	Good	Fair	Poor	Avg. built
Wayne County	259	27%	41.7%	31.3%	1967
Adams County	254	36.2%	57.1%	6.7%	1972
Huntingdon County (this page)	238	41.6%	47.5%	10.9%	1966
Lebanon County	228	28.9%	62.3%	8.8%	1971
McKean County	226	43.8%	37.6%	18.6%	1979
Warren County	217	36.4%	45.2%	18.4%	1974

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

Similar inventory size

Nearest county inventories outside PA (238 bridges here).

Volusia County, FL · 238 bridges
Lafayette County, MO · 238 bridges
Buffalo County, WI · 238 bridges
Greene County, IN · 239 bridges

Similar average build year

Nearest mean year-built outside PA (1966 here).

Butler County, KS · avg 1966 · 591 bridges
Grafton County, NH · avg 1966 · 544 bridges
Queens County, NY · avg 1966 · 514 bridges
Osage County, OK · avg 1966 · 366 bridges

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

All 238 Good 99 Fair 113 Poor 26

All bridges (238)

Sort:

Huntingdon County Bridge Snapshot

Condition distribution

Huntingdon County's Poor-condition bridges carry 24,530 vehicle crossings a day

60.9% of Huntingdon County's bridges have passed the 50-year mark

One structure carries 86.4% of the county's Poor-condition bridge traffic

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

Nationwide counties with similar inventory size or average build year

Similar inventory size

Similar average build year

All bridges (238)

T548 Graysville Mi

PA 913

SR 1019

PA 26

T525 SLATE HILL RD

US 22

PA 994

SR 1009BR MOORE ST

Old Mill Road

SR 2001

PA 305

SR 2005

SR 2024

T565 PINEY RIDGE R

SR 4013

COOPERS GAP ROAD

Standing Stone Rd

BEIDLER ROAD

SR 1009

PA 350

LAUREL RUN ROAD

SR 3003

Big Valley Pike

WILLIAM PENN HW

SR 1001

T353 PINE GROVE RD

PA 655

PA 45

SR 1023

T341 Spring Crk R

East Branch Road

US 522

PA 305

STONE CREEK ROAD

PA 305

SR 2021

PA 994

US 522

MYTON RD

SR 3019

SR 4002

PA 26

PA 829

US 522

PA 655

PA 26

T504 MILL CRK HOLL

T312 PLEASANT HILL

STONE CREEK ROAD

PA 103

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