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 4001(LR 06023)

Fair

Over: LITTLE SWATARA CREEK

FRYSTOWN, Berks, PA

Built 1950 Load: 40.8 t ADT: 792

LONESOME VALLEY RD

Fair

Over: NORTHKILL CREEK

4 MI SE OF US 22 & PA 183, Berks, PA

Built 1976 Load: 40.8 t ADT: 70

UNIONVILLE ROAD

Fair

Over: NORRIS CREEK

NEAR CHESTER COUNTY, Berks, PA

Built 1966 Load: 40.8 t ADT: 500

UPLAND AVENUE

Fair

Over: NORFOLK SOUTHERN RR

NEAR ALVERNIA COLLEGE, Berks, PA

Built 1988 Load: 40.8 t ADT: 2,500

I-99 / US 220 NBL

Fair

Over: SR 3013 C-101 RR JUN RIV

.5 MI.S.OF EAST FREEDOM, Blair, PA

Built 1986 Load: 40.8 t ADT: 5,394

I-99 / US 220 SBL

Fair

Over: SR 3013 C-101 RR JUN.RIV

0.5MI.S.OF EAST FREEDOM, Blair, PA

Built 1986 Load: 40.8 t ADT: 5,455

CO RD101 BedfordSt

Fair

Over: FRANKSTOWN BR.JUNIATA R.

CLAYSBURG, Blair, PA

Built 1993 Load: 40.8 t ADT: 2,341

SR 8005 @ EXIT 48

Fair

Over: SR1012 NORFOLK L.JUN.RIV

TYRONE BOROUGH, Blair, PA

Built 1975 Load: 40.8 t ADT: 4,610

PA 187

Fair

Over: SUGAR RUN

1 MI.N.OF HOLLENBACK, Bradford, PA

Built 1973 Load: 40.8 t ADT: 735

QUARRY ROAD (T359)

Fair

Over: INTERSTATE 295

.8MI.N.RTE 332 32H11, Bucks, PA

Built 1967 Load: 40.8 t ADT: 1,346

STREET ROAD

Fair

Over: BRISTOL PIKE

EDDINGTON 45K01, Bucks, PA

Built 1964 Load: 40.8 t ADT: 25,827

QUAKERTOWN ROAD

Fair

Over: BRANCH COOKS CREEK

PLEASANT VALLEY 02G11, Bucks, PA

Built 1928 Load: 40.8 t ADT: 3,843

BATH ROAD

Fair

Over: MILL CREEK

1MI.NORTH US 13 42K11, Bucks, PA

Built 1958 Load: 40.8 t ADT: 9,303

CHURCH ROAD

Fair

Over: BR OF W BR NESHAMINY CR

HILLTOWN TWP. 20J13, Bucks, PA

Built 1986 Load: 40.8 t ADT: 2,828

OLD JACKSONVILLE

Fair

Over: LITTLE NESHAMINY CREEK

1 Mi N SR332 ADC 3148-E2, Bucks, PA

Built 1933 Load: 40.8 t ADT: 200

ORCHARD ROAD

Fair

Over: PLEASANT SPRING CREEK

HILLTOWN TOWNSHIP 20H05, Bucks, PA

Built 1983 Load: 40.8 t ADT: 500

T-354

Fair

Over: PA TPK (I-276)

NEAR FEASTERVILLE, Bucks, PA

Built 1954 Load: 40.8 t ADT: 200

US 1

Fair

Over: PA32 NJ29SB NSRC DELR

MORRISVILLE BORO. 39D04, Bucks, PA

Built 1952 Load: 40.8 t ADT: 53,000

SR0008 NB

Fair

Over: B&LE RR & THORN CREEK

MCBRIDE NB, Butler, PA

Built 1989 Load: 40.8 t ADT: 8,168

SR0008

Fair

Over: ARMCO PLANT ROAD

SOUTH OF BUTLER, Butler, PA

Built 1965 Load: 40.8 t ADT: 16,519

SR0028

Fair

Over: SR2017

WEST OF FREEPORT, Butler, PA

Built 1970 Load: 40.8 t ADT: 9,051

SR0068

Fair

Over: BUFFALO CREEK

SW OF CHICORA, Butler, PA

Built 1957 Load: 40.8 t ADT: 4,877

SR3001 NB&SB

Fair

Over: PA 8 RRS AVE & CONNOQ C

PICKLEGATE CROSSING, Butler, PA

Built 1965 Load: 40.8 t ADT: 19,964

T-339 LT CREEK RD

Fair

Over: CRAB RUN

0.15 MI E OF T-340, Butler, PA

Built 2001 Load: 40.8 t ADT: 100

PA 56

Fair

Over: WIDMAN STREET (T693)

OVER T-693 AT SR 8020, Cambria, PA

Built 1964 Load: 40.8 t ADT: 20,750

PA 869

Fair

Over: S.FORK BR.LT.CONEMAUGH

0.9 MILE EAST OF SR 2007, Cambria, PA

Built 1931 Load: 40.8 t ADT: 596

SR 2014

Fair

Over: US 22

OVER SR 22 AT SR 8006, Cambria, PA

Built 1960 Load: 40.8 t ADT: 1,219

SR 3027

Fair

Over: PA 56

DALE BOROUGH, Cambria, PA

Built 1972 Load: 40.8 t ADT: 701

T-318

Fair

Over: NORTH CREEK

350 EAST OF SR 0046 INTR, Cameron, PA

Built 1990 Load: 40.8 t ADT: 90

PA TPK (I-476)

Fair

Over: SR 0534; LR 13018

4 MI W OF ALBRIGHTSVILLE, Carbon, PA

Built 1956 Load: 40.8 t ADT: 24,228

SR 26-PA 26

Fair

Over: BRANCH LICK RUN

2 MI. S. HOWARD, Centre, PA

Built 1947 Load: 40.8 t ADT: 2,413

SR 220-US 220

Fair

Over: SPARROW RUN

HANNAH, Centre, PA

Built 1926 Load: 40.8 t ADT: 1,505

SR 322-US 322

Fair

Over: SR 3010 AND SPRING CREEK

OAK HALL, Centre, PA

Built 1970 Load: 40.8 t ADT: 8,748

PANTHER RD

Fair

Over: WOLF RUN

2000 FT NORTH OF T-710, Centre, PA

Built 1935 Load: 40.8 t ADT: 10

PASCHALL MILL ROAD

Fair

Over: MIDDLE BR WHITE CLAY CRK

LONDON GROVE TWP 3799-E9, Chester, PA

Built 1981 Load: 40.8 t ADT: 321

T-400

Fair

Over: PA TPK (I-76)

NORTH OF MARSH CR.SER.PL, Chester, PA

Built 1950 Load: 40.8 t ADT: 200

PA TPK (I-76)

Fair

Over: SR 4016

SOUTHWEST OF EAGLE, Chester, PA

Built 1950 Load: 40.8 t ADT: 46,178

SR0080 EB

Fair

Over: BEAVER CR & ABAND RR

BEAVER CREEK EB, Clarion, PA

Built 1966 Load: 40.8 t ADT: 9,856

SR0080 EB

Fair

Over: SR0338

MYERS HILL EB, Clarion, PA

Built 1966 Load: 40.8 t ADT: 9,856

SR0338

Fair

Over: TURKEY RUN

TURKEY CITY NO.2, Clarion, PA

Built 1990 Load: 40.8 t ADT: 271

SR3013

Fair

Over: LICKING CREEK

CRAIG ROAD, Clarion, PA

Built 1961 Load: 40.8 t ADT: 19

SR 36-PA 36

Fair

Over: NORTH CAMP RUN

WAUKESHA, Clearfield, PA

Built 1953 Load: 40.8 t ADT: 1,295

ON TSR 711

Fair

Over: SR 80-I 80

2 MI E EXIT 133, Clearfield, PA

Built 1968 Load: 40.8 t ADT: 168

SR 153-PA 153

Fair

Over: BENNETT BRANCH

PENFIELD, Clearfield, PA

Built 1936 Load: 40.8 t ADT: 4,041

SR 80-I 80

Fair

Over: SR 880-PA 880

2 MILE WEST EXIT 192, Clinton, PA

Built 1968 Load: 40.8 t ADT: 8,239

SR 2024

Fair

Over: SUGAR RUN

BEECH CREEK, Clinton, PA

Built 1954 Load: 40.8 t ADT: 431

RT BR YOUNG W C RD

Fair

Over: RT BR YOUNG WOMANS CR

SEVEN MILE ROAD INTERSECT, Clinton, PA

Built 1997 Load: 40.8 t ADT: 25

T-316 COUNTY BR#27

Fair

Over: MUGSER RUN

5 MI SW OF CATAWISSA, Columbia, PA

Built 1970 Load: 40.8 t ADT: 100

T-504 CTY BR#169

Fair

Over: N. BR BRIAR CREEK

0.1 MILE WEST OF WHITMIRE, Columbia, PA

Built 1905 Load: 40.8 t ADT: 100

SR 886 NORTH MAIN

Fair

Over: OVER WOODCOCK CREEK

WOODCOCK TOWNSHIP, Crawford, PA

Built 1992 Load: 40.8 t ADT: 3,719

Showing 7,951-8,000 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.