County profile · official public datasets

Juniata County, PA

169 public highway bridges tracked in the FHWA National Bridge Inventory: 30.2% rated Good, 56.2% Fair, 13.6% Poor.

169
Public bridges: 30.2%
Good condition: 13.6%
Poor condition

The verdict

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

Juniata County posts a higher-than-median Poor-condition share among rated counties in the state across mid-size county bridge inventory.

42nd
of 67 on Poor share: 13.6%
Poor-condition share: 169
public highway bridges: 1969
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.

Juniata County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Juniata County ranks #42 of 67 Pennsylvania counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 13.6%). Juniata County, Pennsylvania contains 169 public highway bridges. Roughly 30.2% are rated “Good,” 56.2% “Fair,” and 13.6% “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

169

Public highway bridges in Juniata County

Good condition

30.2%

51 of 169 rated 7-9

Fair condition

56.2%

95 of 169 rated 5-6

Poor condition

13.6%

23 of 169 rated 4 or below

In-state Poor-share rank

#42 of 67

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

Condition distribution

Share of 169 NBI-tracked bridges by lowest applicable component rating.

Good

30.2% (51)

Fair

56.2% (95)

Poor

13.6% (23)

Juniata County's Poor-condition bridges carry 26,060 vehicle crossings a day

That is 6.3% of the county's reported daily bridge traffic on 13.6% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 1,133 crossings a day against 2,202 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 169 of 169 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

65.1% of Juniata County's bridges have passed the 50-year mark

110 of the 169 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 30.2% 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 29.3% of the county's Poor-condition bridge traffic

SR 22-US 22 over SR 2003 AND DOE RUN, built 1972, carries 7,630 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 26,060 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

1900s

1
1910s

5
1920s

12
1930s

21
1940s

17
1950s

18
1960s

6
1970s

30
1980s

5
1990s

13
2000s

16
2010s

23
2020s

2

What this shows Construction peaked in the 1970s, when 30 of the county's bridges still in the inventory were built, which is 17.8% of those with a recorded year. That cohort is now 45 to 54 years old in the 2024 inventory. Its average build year (1969) matches the Pennsylvania average (1970).

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

The 5 Pennsylvania counties nearest Juniata County in number of bridges, with their condition splits. Its 13.6% Poor share is the 5th-lowest of these 6. Its average build year of 1969 against a peer-group mean of 1969 is in line with the group.

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

Bridge inventory size and condition shares for Juniata County and the 5 Pennsylvania counties closest to it in inventory size
County	Bridges	Good	Fair	Poor	Avg. built
Clarion County	172	27.9%	64%	8.1%	1974
Juniata County (this page)	169	30.2%	56.2%	13.6%	1969
Union County	163	50.9%	44.8%	4.3%	1969
Snyder County	161	47.2%	47.2%	5.6%	1966
Fulton County	159	32.1%	56%	11.9%	1967
Pike County	158	35.4%	38.6%	25.9%	1971

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

Similar inventory size

Nearest county inventories outside PA (169 bridges here).

Pike County, AL · 169 bridges
Laurens County, GA · 169 bridges
Cumberland County, IL · 169 bridges
Union County, IA · 169 bridges

Similar average build year

Nearest mean year-built outside PA (1969 here).

Cook County, IL · avg 1969 · 1,721 bridges
Fresno County, CA · avg 1969 · 916 bridges
Cuyahoga County, OH · avg 1969 · 871 bridges
Ventura County, CA · avg 1969 · 501 bridges

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

All 169 Good 51 Fair 95 Poor 23

Fair-condition bridges (95)

Sort:

Juniata County Bridge Snapshot

Condition distribution

Juniata County's Poor-condition bridges carry 26,060 vehicle crossings a day

65.1% of Juniata County's bridges have passed the 50-year mark

One structure carries 29.3% of the county's Poor-condition bridge traffic

How Juniata 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

Fair-condition bridges (95)

SR 3010

SR 2003

T-307 SHEARER HLW

SR 235-PA 235

T-322 DOBBS RD

SR 3021

T-531 ROCKLAND RD

SR 35-PA 35

SR 22-US 22

SR 22-US 22

SR 75-PA 75

SR 850-PA 850

T-410 MILL RD

SR 22-US 22

SR 22-US 22

SR 35-PA 35

SR 75-PA 75

SR 2015

SR 3002

SR 3008

SR 3020

ON TSR 544

SR 22-US 22

SR 22-US 22

SR 35-PA 35

SR 75-PA 75

T-360 EHRENZELLER

SR 22-US 22

SR 3019

T-435

SR 22-US 22

SR 333-PA 333

SR 2023

SR 3002

SR 3011

SR 3030

PAGE VALLEY RD

SR 22-US 22

SR 22-US 22

SR 22-US 22

SR 22-US 22

SR 22-US 22

SR 235-PA 235

T-418 LAUREL RD

SR 22-US 22

SR 2013

SR 3025

SR 22-US 22

SR 22-US 22

SR 22-US 22

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