County profile · official public datasets

Lycoming County, PA

482 public highway bridges tracked in the FHWA National Bridge Inventory: 50.8% rated Good, 45.2% Fair, 3.9% Poor.

482
Public bridges: 50.8%
Good condition: 3.9%
Poor condition

The verdict

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

Lycoming County pairs a top-5% lowest Poor-condition share among rated counties in the state with a newer average build year than the state inventory.

Top 4%
lowest Poor share in state: 3.9%
Poor-condition share: 482
public highway bridges: 1975
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.

Lycoming County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Lycoming County ranks #3 of 67 Pennsylvania counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 3.9%). Lycoming County, Pennsylvania contains 482 public highway bridges. Roughly 50.8% are rated “Good,” 45.2% “Fair,” and 3.9% “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

482

Public highway bridges in Lycoming County

Good condition

50.8%

245 of 482 rated 7-9

Fair condition

45.2%

218 of 482 rated 5-6

Poor condition

3.9%

19 of 482 rated 4 or below

In-state Poor-share rank

#3 of 67

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

Condition distribution

Share of 482 NBI-tracked bridges by lowest applicable component rating.

Good

50.8% (245)

Fair

45.2% (218)

Poor

3.9% (19)

Lycoming County's Poor-condition bridges carry 2,231 vehicle crossings a day

That is 0.1% of the county's reported daily bridge traffic on 3.9% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 117 crossings a day against 3,632 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 482 of 482 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

48.8% of Lycoming County's bridges have passed the 50-year mark

235 of the 482 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 50.8% 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 17.9% of the county's Poor-condition bridge traffic

E. 7TH AVE.BR#211 over HAGERMANS RUN, built 1928, carries 400 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 19-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 2,231 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

pre-1900

5
1900s

4
1910s

5
1920s

28
1930s

45
1940s

22
1950s

28
1960s

36
1970s

89
1980s

43
1990s

62
2000s

40
2010s

58
2020s

17

What this shows Construction peaked in the 1970s, when 89 of the county's bridges still in the inventory were built, which is 18.5% of those with a recorded year. That cohort is now 45 to 54 years old in the 2024 inventory. Its average build year is 1975, 5 years newer than the Pennsylvania average of 1970.

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

The 5 Pennsylvania counties nearest Lycoming County in number of bridges, with their condition splits. Its 3.9% Poor share is the 1st-lowest of these 6. Its average build year of 1975 against a peer-group mean of 1972 is in line with the group.

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

Bridge inventory size and condition shares for Lycoming County and the 5 Pennsylvania counties closest to it in inventory size
County	Bridges	Good	Fair	Poor	Avg. built
Lycoming County (this page)	482	50.8%	45.2%	3.9%	1975
Luzerne County	457	28.9%	45.5%	25.6%	1972
Somerset County	454	33%	52.6%	14.3%	1969
Dauphin County	449	22%	69.5%	8.5%	1972
Erie County	442	37.8%	52.7%	9.5%	1976
Mercer County	438	39.3%	45.2%	15.5%	1972

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

Similar inventory size

Nearest county inventories outside PA (482 bridges here).

Tuscaloosa County, AL · 482 bridges
Windsor County, VT · 483 bridges
Lauderdale County, MS · 481 bridges
Cattaraugus County, NY · 484 bridges

Similar average build year

Nearest mean year-built outside PA (1975 here).

San Bernardino County, CA · avg 1975 · 1,422 bridges
Lane County, OR · avg 1975 · 1,010 bridges
Fulton County, GA · avg 1975 · 775 bridges
Monroe County, NY · avg 1975 · 615 bridges

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

All 482 Good 245 Fair 218 Poor 19

Good-condition bridges (245)

Sort:

Lycoming County Bridge Snapshot

Condition distribution

Lycoming County's Poor-condition bridges carry 2,231 vehicle crossings a day

48.8% of Lycoming County's bridges have passed the 50-year mark

One structure carries 17.9% of the county's Poor-condition bridge traffic

How Lycoming 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

Good-condition bridges (245)

T-675 FRAZIER BR.

3RD STREET SR2068

SR 0180

T-670 CTY BR 105

I 180 WB

US 15 NBL

US 15 SBL

SR 0015 SB

BENNETT ST. BR#207

T519 EAST BLIND RD

SR-0180 WBL

SR 284

SR 1004

SR 1006

SR 2014

S.R. 0015 SB

SR 1013

SR 2009

SR 2061

SR 3001

SR 3014

T-414 CTY BDG 104

T-661 MILL HILL RD

T-665 CTY BDG#115

T-384

T-135

T-165

T-317 Wells Road

SR 15 NB

T-658 BIG RUN ROAD

Lairdsville Road

I - 180 EB

SR-0180 WBL

SR 0015 SBL

BOWER STREET

COVE ROAD

SR 0414 SH

US 220

SR 220

SR 0405

SR 0405

SR 3014

T-434

PA 118

SR 2039

SR 1004

SR 0015 SB

SR 1006

T-616 SHERIDAN ST

SR 2001

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