State profile · Above median Poor share

Pennsylvania bridge safety

According to the Federal Highway Administration's 2024 National Bridge Inventory, condition ratings, load ratings, and Poor-condition shares for every public highway bridge in Pennsylvania.

23,299
Public bridges
34.0%
Good condition
12.6%
Poor condition

Pennsylvania holds 23,299 public highway bridges (#8 of 52 by inventory) with a 12.58% Poor share (#7 of 52 by Poor share).

That is 12.6% of the state's inventory, against an average of 7.5% across the 54 states and territories with Poor-rated bridges on file, which places it 46 of 54 ordered from the lowest Poor share upward. A bridge is rated Poor when its weakest applicable component scores 4 or below on the inspecting agency's 0-9 scale, so the category is a maintenance and funding signal rather than a closure order or a live crossing-safety verdict.

Inventory: FHWA NBI 2024 · last ETL August 2026

Total Bridges

23,299

Public highway bridges in Pennsylvania

Good Condition

34.0%

7,915 bridges rated 7-9

-16.0pp vs 50% benchmark

Poor Condition

12.6%

2,932 bridges whose lowest applicable component is rated 0-4

5.1pp vs national avg 7.5%

Pennsylvania vs national bridge condition

Pennsylvania - Good condition share 34.0%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

Pennsylvania - Poor-condition share 41.9%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.5%.

Pennsylvania in the national condition pattern

Each point is a state or territory in the FHWA NBI; the highlighted point is this profile.

Inventory size and Poor-condition share are different measures: Pennsylvania has 23,299 bridges and a 12.6% Poor-condition share in the 2024 NBI, rank #46 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold. Scatter plot of 54 data points. 0%10%20%30%40% 0k20k40k60k Public bridges in inventory (thousands) Poor-condition share (%) PA, Public bridges in inventory (thousands): 23.3k · Poor-condition share (%): 12.58%AL, Public bridges in inventory (thousands): 16.2k · Poor-condition share (%): 3.35%AK, Public bridges in inventory (thousands): 1.7k · Poor-condition share (%): 7.89%AZ, Public bridges in inventory (thousands): 8.6k · Poor-condition share (%): 1.15%AR, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 5.43%CA, Public bridges in inventory (thousands): 25.8k · Poor-condition share (%): 5.91%CO, Public bridges in inventory (thousands): 9k · Poor-condition share (%): 4.82%CT, Public bridges in inventory (thousands): 4.4k · Poor-condition share (%): 4.72%DE, Public bridges in inventory (thousands): 0.9k · Poor-condition share (%): 1.26%DC, Public bridges in inventory (thousands): 0.3k · Poor-condition share (%): 1.95%FL, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 2.79%GA, Public bridges in inventory (thousands): 15.1k · Poor-condition share (%): 1.59%GU, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 12.77%HI, Public bridges in inventory (thousands): 1.2k · Poor-condition share (%): 6.53%ID, Public bridges in inventory (thousands): 4.6k · Poor-condition share (%): 4.9%IL, Public bridges in inventory (thousands): 26.9k · Poor-condition share (%): 9.35%IN, Public bridges in inventory (thousands): 19.5k · Poor-condition share (%): 5.22%IA, Public bridges in inventory (thousands): 23.7k · Poor-condition share (%): 19.16%KS, Public bridges in inventory (thousands): 24.9k · Poor-condition share (%): 5.26%KY, Public bridges in inventory (thousands): 14.5k · Poor-condition share (%): 7.37%LA, Public bridges in inventory (thousands): 12.7k · Poor-condition share (%): 11.48%ME, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 15.41%MD, Public bridges in inventory (thousands): 5.5k · Poor-condition share (%): 4.56%MA, Public bridges in inventory (thousands): 5.3k · Poor-condition share (%): 8.88%MI, Public bridges in inventory (thousands): 11.4k · Poor-condition share (%): 11.27%MN, Public bridges in inventory (thousands): 13.5k · Poor-condition share (%): 4.44%MS, Public bridges in inventory (thousands): 16.7k · Poor-condition share (%): 6.03%MO, Public bridges in inventory (thousands): 24.6k · Poor-condition share (%): 8.95%MT, Public bridges in inventory (thousands): 5.2k · Poor-condition share (%): 6.81%NE, Public bridges in inventory (thousands): 15.4k · Poor-condition share (%): 7.9%NV, Public bridges in inventory (thousands): 2.1k · Poor-condition share (%): 1.14%NH, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 7.51%NJ, Public bridges in inventory (thousands): 6.8k · Poor-condition share (%): 6.01%NM, Public bridges in inventory (thousands): 4k · Poor-condition share (%): 4.51%NY, Public bridges in inventory (thousands): 17.6k · Poor-condition share (%): 9.43%NC, Public bridges in inventory (thousands): 19.2k · Poor-condition share (%): 6.76%ND, Public bridges in inventory (thousands): 4.3k · Poor-condition share (%): 10.98%OH, Public bridges in inventory (thousands): 26.7k · Poor-condition share (%): 4.74%OK, Public bridges in inventory (thousands): 22.9k · Poor-condition share (%): 7.7%OR, Public bridges in inventory (thousands): 8.3k · Poor-condition share (%): 4.61%PR, Public bridges in inventory (thousands): 2.4k · Poor-condition share (%): 13.92%RI, Public bridges in inventory (thousands): 0.8k · Poor-condition share (%): 15.2%SC, Public bridges in inventory (thousands): 9.5k · Poor-condition share (%): 6.17%SD, Public bridges in inventory (thousands): 5.9k · Poor-condition share (%): 16.36%TN, Public bridges in inventory (thousands): 20.4k · Poor-condition share (%): 4.41%TX, Public bridges in inventory (thousands): 56.7k · Poor-condition share (%): 1.23%UT, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 2.91%VT, Public bridges in inventory (thousands): 2.9k · Poor-condition share (%): 2.9%VI, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 29.17%VA, Public bridges in inventory (thousands): 14.1k · Poor-condition share (%): 3.39%WA, Public bridges in inventory (thousands): 8.5k · Poor-condition share (%): 5.45%WV, Public bridges in inventory (thousands): 7.3k · Poor-condition share (%): 18.64%WI, Public bridges in inventory (thousands): 14.4k · Poor-condition share (%): 6.52%WY, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 6.51%
Inventory size and Poor-condition share are different measures: Pennsylvania has 23,299 bridges and a 12.6% Poor-condition share in the 2024 NBI, rank #46 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold.

Pennsylvania vs all states by public bridge inventory

Where this state's FHWA NBI public-highway bridge count sits among every state and territory on PlainBridges

23,299 8th of 54 higher than 46 of 54 states

States and territories, banded by public bridge inventory size

Each bar is a band; taller bars hold more states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source FHWA National Bridge Inventory · 2024

Read the rank neighborhood for Pennsylvania

The highlighted point is Pennsylvania: 23,299 bridges and 12.58% in Poor condition, rank #46 of 54 jurisdictions ordered from the lowest share upward. The five jurisdictions immediately above and below Pennsylvania on that same Poor-share ordering:

  • Michigan: 11,371 bridges · 11.27% Poor
  • Louisiana: 12,698 bridges · 11.48% Poor
  • Pennsylvania: 23,299 bridges · 12.58% Poor
  • Guam: 47 bridges · 12.77% Poor
  • Puerto Rico: 2,385 bridges · 13.92% Poor

The full national sortable table lives on the rankings page.

Material families in Pennsylvania

Exclusive FHWA material families across all 23,299 bridges in this state; continuous variants fold into the parent family. Orthogonal to the Poor-share scatter above.

Who maintains Pennsylvania’s inventory

State agency holds 70.3% of the 23,299 public highway bridges filed under Pennsylvania in the 2024 NBI, the agency-of-record split for this state, not a condition verdict.

When Pennsylvania’s bridges were built

Pre-1950 construction accounts for 24.8% of the 23,299 bridges with a recorded original year in Pennsylvania. Era bands are orthogonal to the Poor-share ranking above.

Condition Distribution

Pennsylvania34%53.4%12.6%GoodFairPoor
Bridge inventory deck-condition mix - Pennsylvania (FHWA NBI)

Counties (67)

Adams 254 Allegheny 1294 Armstrong 263 Beaver 299 Bedford 417 Berks 667 Blair 338 Bradford 399 Bucks 699 Butler 378 Cambria 284 Cameron 62 Carbon 134 Centre 367 Chester 680 Clarion 172 Clearfield 292 Clinton 212 Columbia 271 Crawford 399 Cumberland 348 Dauphin 449 Delaware 387 Elk 127 Erie 442 Fayette 422 Forest 71 Franklin 294 Fulton 159 Greene 306 Huntingdon 238 Indiana 301 Jefferson 202 Juniata 169 Lackawanna 363 Lancaster 801 Lawrence 265 Lebanon 228 Lehigh 381 Luzerne 457 Lycoming 482 McKean 226 Mercer 438 Mifflin 196 Monroe 315 Montgomery 828 Montour 108 Northampton 356 Northumberland 299 Perry 183 Philadelphia 585 Pike 158 Potter 207 Schuylkill 368 Snyder 161 Somerset 454 Sullivan 119 Susquehanna 284 Tioga 429 Union 163 Venango 189 Warren 217 Washington 655 Wayne 259 Westmoreland 620 Wyoming 140 York 569

Pennsylvania vs nearby ranks

Adjacent states by Poor-condition share (lower share = better)

States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Pennsylvania on the same metric.

MI

Michigan

11.27% top marginal rate
Structure
Progressive
Burden @ $100K
$11,371

LA

Louisiana

11.48% top marginal rate
Structure
Progressive
Burden @ $100K
$12,698
Selected

PA

Pennsylvania

12.58% top marginal rate
Structure
Progressive
Burden @ $100K
$23,299

GU

Guam

12.77% top marginal rate
Structure
Progressive
Burden @ $100K
$47

PR

Puerto Rico

13.92% top marginal rate
Structure
Progressive
Burden @ $100K
$2,385

Bridges Needing Most Attention in Pennsylvania

Six lowest-condition bridges in Pennsylvania, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.

BLVD OF THE ALLIES

Poor

Over: CSX RR & BIKE TRAIL

005 Charles Anderson Brid, Allegheny, PA

Built 1938 Load: 0.0 t ADT: 21,211

TIMBERLAND AV

Poor

Over: SAW MILL RUN CREEK

113 Timberland Ave, Allegheny, PA

Built 1909 Load: 0.0 t ADT: 30

FREMONT ST

Poor

Over: GIRTYS RUN

FREMONT 25 FROM NORTH AV, Allegheny, PA

Built 1911 Load: 0.0 t ADT: 50

OLD WILLIAMPENN HW

Poor

Over: THOMPSON RUN CREEK

446002 OLD WM PENN HGWY, Allegheny, PA

Built 1900 Load: 0.0 t ADT: 300

FALLSTON BR

Poor

Over: BEAVER RIVER

004026 FALLSTON BRIDGE, Beaver, PA

Built 1884 Load: 0.0 t ADT: 6,523

ELEVENTH AVENUE ET

Poor

Over: BLOCKHOUSE RUN

423005 100 YD /13 ST INT, Beaver, PA

Built 1925 Load: 0.0 t

All Bridges in Pennsylvania

SR 0371 TR 371

Good

Over: WEST BR LACKAWAXEN RIVER

MT PLEASANT TP FISH HATCH, Wayne, PA

Built 2019 Load: 41.5 t ADT: 787

CSVT

Good

Over: SR 15

CSVT over 15 NB, Union, PA

Built 2019 Load: 41.5 t ADT: 300

SR 3005(LR 53079)

Good

Over: W. BR Schuylkill River

.4 M.N.OF CRESSONA, Schuylkill, PA

Built 2020 Load: 41.5 t ADT: 2,587

T-478 CASE ROAD

Good

Over: Masthope Creek

.7 MI SO. OF WELCOME LAKE, Pike, PA

Built 2020 Load: 41.5 t ADT: 100

PEQUEA VALLEY RD

Good

Over: PEQUEA CREEK

1200 FT SW OF SR 772, Lancaster, PA

Built 2022 Load: 41.5 t ADT: 720

SR 1021

Good

Over: Buffalo Run

RATTIGAN NO.1, Butler, PA

Built 2021 Load: 41.5 t ADT: 330

T-494

Good

Over: PA TPK (I-76)

WEST OF BEDFORD INTERCHGE, Bedford, PA

Built 2021 Load: 41.5 t ADT: 653

WALTON ROAD

Good

Over: LOBBS RUN

1/4 MI. S.E. OF SR 3018, Allegheny, PA

Built 1938 Load: 41.7 t ADT: 567

T-338 PONCIC ROAD

Good

Over: HOLDER RUN

2000 feet s. of SR 0068, Armstrong, PA

Built 1975 Load: 41.7 t ADT: 100

PA 326

Good

Over: COVE CREEK

1.3 MILE NORTH OF SR 3013, Bedford, PA

Built 1988 Load: 41.7 t ADT: 626

IRISH CREEK ROAD

Good

Over: IRISH CREEK

0.7 MI. W. OF CENTERPORT, Berks, PA

Built 1960 Load: 41.7 t ADT: 583

PA 453

Good

Over: BALD EAGLE CREEK

TYRONE BOROUGH, Blair, PA

Built 1973 Load: 41.7 t ADT: 7,319

US 202

Good

Over: PA 32(LR 326)

1.1 MI N OF NEW HOPE BORO, Bucks, PA

Built 1971 Load: 41.7 t ADT: 10,700

SR 1026

Good

Over: SLATE LICK RUN GLENDALE

2.0 MILE W. OF FRUGALITY, Cambria, PA

Built 1960 Load: 41.7 t ADT: 888

SR 3031

Good

Over: US 0219

4.5 MI.E.OF JOHNSTOWN, Cambria, PA

Built 1990 Load: 41.7 t ADT: 13,046

SR 4021

Good

Over: TR.WEST.BR.SUSQ.RIVER

2 MI.E.OF N. CAMBRIA, Cambria, PA

Built 1966 Load: 41.7 t ADT: 1,565

BOOT ROAD

Good

Over: PA 100 BYPASS TO SB 202

INDIAN KING 31K01, Chester, PA

Built 1968 Load: 41.7 t ADT: 14,198

PARK ROAD(T-496)

Good

Over: EAST BR BRANDYWINE CREEK

WALLACE TOWNSHIP 11G12, Chester, PA

Built 1990 Load: 41.7 t ADT: 239

SR 729-PA 729

Good

Over: KRATZER RUN

GRAMPIAN BORO, Clearfield, PA

Built 1996 Load: 41.7 t ADT: 676

SR 80-I 80

Good

Over: SR 220-US 220

EXIT 178 LOCK HAVEN INTER, Clinton, PA

Built 1968 Load: 41.7 t ADT: 9,024

HYNER RUN ROAD

Good

Over: HYNER RUN

HYNER PARK ENTRANCE, Clinton, PA

Built 2008 Load: 41.7 t ADT: 150

SR 0042

Good

Over: OVER HEMLOCK CREEK

2 MI W OF BLOOMSBURG, Columbia, PA

Built 1970 Load: 41.7 t ADT: 12,912

SR 0080 EBL

Good

Over: OVER SR 2028

1.5 MI S OF MIFFLINVILLE, Columbia, PA

Built 1964 Load: 41.7 t ADT: 14,038

SR 0080 WBL

Good

Over: OVER S.R. 2028

1.5 MI E OF MIFFLINVILLE, Columbia, PA

Built 1964 Load: 41.7 t ADT: 14,651

SR 4013 HICKERNELL

Good

Over: OVER CARR RUN

SPRING TOWNSHIP, Crawford, PA

Built 1962 Load: 41.7 t ADT: 268

FARM ROAD T-344

Good

Over: YELLOW BREECHES CREEK

2.1W HUNTSDALE/YELLOW BR, Cumberland, PA

Built 1999 Load: 41.7 t ADT: 100

SR 2005

Good

Over: LITTLE SANDY CREEK

WHARTON TOWNSHIP, Fayette, PA

Built 1942 Load: 41.7 t ADT: 119

PA 641; Newburg rd

Good

Over: CLIPPINGER RUN

3.5 MI E OF ROXBURY, Franklin, PA

Built 1933 Load: 41.7 t ADT: 1,356

RATTLESNAKE RUN RD

Good

Over: E BR ANTIETAM CREEK

0.3 MI SE OF T-378, Franklin, PA

Built 1999 Load: 41.7 t ADT: 20

TOWNSHIP ROAD 511

Good

Over: SMITH CREEK

SOUTH OF WAYNESBURG, Greene, PA

Built 1901 Load: 41.7 t ADT: 25

SR 1009

Good

Over: CHILCOTE RUN

4 MI.N.OF HUNTINGDON, Huntingdon, PA

Built 2001 Load: 41.7 t ADT: 1,177

BRIDGE STREET

Good

Over: CROOKED CREEK

BTW FRECH & SR0110, Indiana, PA

Built 1973 Load: 41.7 t ADT: 225

SR 2035

Good

Over: LONDONLAND RUN

1 MI. S. OF LEHMAN PLACE, Lancaster, PA

Built 1981 Load: 41.7 t ADT: 2,776

I-78 (LR 1045)

Good

Over: PA 309(LR 781 SB)

OVER PA 309(LR 781), Lehigh, PA

Built 1989 Load: 41.7 t ADT: 28,618

SR-0180 EBL

Good

Over: OVER CARPENTERS RUN

1 MI N OF HALLS STATION, Lycoming, PA

Built 1975 Load: 41.7 t ADT: 9,947

I-180 EAST

Good

Over: WOLF RUN

1.5 MI EAST OF MUNCY, Lycoming, PA

Built 1973 Load: 41.7 t ADT: 8,591

SR-0180 WBL

Good

Over: OVER WOLF RUN

1.5 MI EAST OF MUNCY, Lycoming, PA

Built 1973 Load: 41.7 t ADT: 8,866

SR 846 ORNGVLLE.RD

Good

Over: BIG RUN

WEST SALEM TOWNSHIP, Mercer, PA

Built 1989 Load: 41.7 t ADT: 680

SR 4004

Good

Over: KISHACOQUILLAS CREEK

2 MI SW BELLEVILLE, Mifflin, PA

Built 1988 Load: 41.7 t ADT: 324

MERWINSBURG RD

Good

Over: POHOPOCO CREEK

1 MI. N. OF EFFORT, Monroe, PA

Built 1979 Load: 41.7 t ADT: 2,946

TRAFFIC ROUTE 309

Good

Over: SUSQUEHANNA ROAD

UPPER DUBLIN 3257H05, Montgomery, PA

Built 1958 Load: 41.7 t ADT: 51,755

MAIN STREET

Good

Over: STONY CREEK

500FT W OF SR0202 3367-D2, Montgomery, PA

Built 1854 Load: 41.7 t ADT: 15,000

T-351 CTY BR #22

Good

Over: EAST BRANCH OF KASE RUN

0.4 MI. W OF KASEVILLE, Montour, PA

Built 1994 Load: 41.7 t ADT: 106

ELK HILL ROAD

Good

Over: LAUREL RUN TRIB

2000 SE OF LAUREL RUN RD, Perry, PA

Built 1983 Load: 41.7 t ADT: 50

WINDFALL ROAD

Good

Over: WINDFALL RUN

1/2 MI NW OF CROSS FRK RD, Potter, PA

Built 1998 Load: 41.7 t ADT: 20

MIDDLE RD

Good

Over: SOUTH BR MIDDLE CREEK

3 MI W OF BEAVER SPRINGS, Snyder, PA

Built 1961 Load: 41.7 t ADT: 317

BRUNNERDALE ROAD

Good

Over: ROCK RUN

2.5 MI NW OF SR 42, Sullivan, PA

Built 2002 Load: 41.7 t ADT: 25

SR 1015

Good

Over: CASCADA CREEK

HARMONY TWP 1.5M N SR1017, Susquehanna, PA

Built 1940 Load: 41.7 t ADT: 550

S.R.2016

Good

Over: OVER TIOGA RIVER

BLOSSBURG BOROUGH, Tioga, PA

Built 1995 Load: 41.7 t ADT: 976

SR 3023

Good

Over: HEISE RUN

1.5 MI NW OF WELLSBORO, Tioga, PA

Built 1996 Load: 41.7 t ADT: 89

Showing 16,851-16,900 of 23,299 bridges

Related

All states → | National rankings → | Understanding conditions → | Retired SD term explained →
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.

Understanding Bridge Conditions

How FHWA rates bridge condition on a 0-9 scale.

Check Your Daily Bridges

How to look up bridge condition data for bridges on your route.

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

What to do with this

Use Pennsylvania's inventory picture to drill to a county or a specific span.

  • Browse counties in Pennsylvania and open the highest-Poor shares first. County list
  • See where this state sits among peers on Poor-condition share. State rankings
  • Compare this state with another jurisdiction on the same measures. State compare

NBI condition ratings are inventory snapshots, not live crossing-safety verdicts.

Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Pennsylvania Good/Fair/Poor shares and county rollups on this page are computed from the same NBI extract as the national boards; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.