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.

When Lycoming County's bridges were built

482 bridges with a recorded construction year, grouped by decade

bridges

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.

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

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 Poor
Lycoming County (this page) 482 3.9%
Luzerne County 457 25.6%
Somerset County 454 14.3%
Dauphin County 449 8.5%
Erie County 442 9.5%
Mercer County 438 15.5%

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).

Similar average build year

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

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

Poor-condition bridges (19)

SR 4001

Poor

Over: OVER LITTLE PINE CR.

VILLAGE OF ENGLISH CENTER, Lycoming, PA

Built 1891 Load: 4.5 t ADT: 134

MORRIS RUN ROAD

Poor

Over: SLATE RUN

1/2 MI SE OF FRANCIS ROAD, Lycoming, PA

Built 1933 Load: 4.5 t ADT: 5

T-615 CTY BR # 112

Poor

Over: LARRYS CREEK

2.7 MI SW OF COGAN HOUSE, Lycoming, PA

Built 1877 Load: 5.4 t ADT: 10

T-629

Poor

Over: SLACKS RUN

0.3 MI NE OF BODINES, Lycoming, PA

Built 1940 Load: 6.4 t ADT: 108

T-836 (TRUMAN ST)

Poor

Over: TROUT RUN

VILLAGE OF TROUT RUN, Lycoming, PA

Built 1919 Load: 8.2 t ADT: 108

T-652

Poor

Over: GREGS RUN

1.3 M. S.E. PICTURE ROCKS, Lycoming, PA

Built 1986 Load: 9.1 t ADT: 26

T-530

Poor

Over: W. BR. LITTLE MUNCY CRK.

VILLAGE OF BIGGERTOWN, Lycoming, PA

Built 1919 Load: 11.8 t ADT: 40

T-776 BR # 351

Poor

Over: ENGLISH RUN

1.9 MI. NW OF ENGLISH CTR, Lycoming, PA

Built 1930 Load: 11.8 t ADT: 52

T-665

Poor

Over: PLEASANT STREAM

2.3 MI. NE OF MARSH HILL, Lycoming, PA

Built 1950 Load: 12.7 t ADT: 108

T-557

Poor

Over: GREGS RUN

0.9 MI. E. OF BRYAN MILLS, Lycoming, PA

Built 1900 Load: 18.1 t ADT: 55

T-510

Poor

Over: MILL CREEK

VILLAGE OF BALLS MILLS, Lycoming, PA

Built 1950 Load: 22.7 t ADT: 100

SR 1005

Poor

Over: OVER PLUNKETTS CREEK

1 MILE SOUTH OF PROCTOR, Lycoming, PA

Built 1938 Load: 23.6 t ADT: 331

T-638 BR#335

Poor

Over: LAUREL RUN

1.0 MI. SE OF MORELAND, Lycoming, PA

Built 1920 Load: 24.5 t ADT: 52

SR 414

Poor

Over: PINE CREEK

1 MI N OF SLATE RUN, Lycoming, PA

Built 1890 Load: 28.1 t ADT: 190

T- 464

Poor

Over: WHITE DEER HOLE CREEK

2.2 MI E OF ELIMSPORT, Lycoming, PA

Built 1954 Load: 30.8 t ADT: 108

T-434

Poor

Over: MOSQUITO CREEK

1.3 MI. S OF DUBOISTOWN, Lycoming, PA

Built 1926 Load: 32.7 t ADT: 250

T-447 TWP. BR #333

Poor

Over: LAUREL RUN

0.6 MI. S. OF MORELAND, Lycoming, PA

Built 1920 Load: 32.7 t ADT: 20

E. 7TH AVE.BR#211

Poor

Over: HAGERMANS RUN

SOUTH WILLIAMSPORT BORO, Lycoming, PA

Built 1928 Load: 32.7 t ADT: 400

SR 4001

Poor

Over: LITTLE PINE CREEK

2.5 MI W OF ENGLISH CTR, Lycoming, PA

Built 1975 Load: 35.4 t ADT: 134

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

Related

Browse all → | Rankings →
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.