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

FAIRVIEW ROAD

Good

Over: E. BR. BRANDYWINE CREEK

EAST OF RTE 282 11G11, Chester, PA

Built 1973 Load: 37.2 t ADT: 2,022

SR 219-US 219

Good

Over: SLAB RUN

FALLS CREEK, Clearfield, PA

Built 1969 Load: 37.2 t ADT: 6,985

SR 2002

Good

Over: BIG FISHING CREEK

1 MILE EAST EASTVILLE, Clinton, PA

Built 1995 Load: 37.2 t ADT: 380

SR 0042

Good

Over: OVER US TR 11

1 MILE W OF BLOOMSBURG, Columbia, PA

Built 1970 Load: 37.2 t ADT: 6,092

TYSON SCHOOL RD.

Good

Over: TRIB. TO ROARING CREEK

0.5 MI NORTH OF NUMIDIA, Columbia, PA

Built 1948 Load: 37.2 t ADT: 291

SR 27 WASHINGTON

Good

Over: OVER WEST BR SUGAR CREEK

TROY TOWNSHIP, Crawford, PA

Built 1988 Load: 37.2 t ADT: 1,397

SR 618

Good

Over: OVER INLET RUN TRIB

SUMMIT TOWNSHIP, Crawford, PA

Built 1927 Load: 37.2 t ADT: 2,300

SR 1016 BROWN HILL

Good

Over: OVER LITTLE FEDERAL RUN

BLOOMFIELD TOWNSHIP, Crawford, PA

Built 1936 Load: 37.2 t ADT: 291

PA 581; SR 0581

Good

Over: LOCUST LANE

2.0 MI SOUTH OF I-81, Cumberland, PA

Built 1995 Load: 37.2 t ADT: 21,230

2025 Slate Hill

Good

Over: US 15; SR 0015

ROSSMOYNE, Cumberland, PA

Built 1973 Load: 37.2 t ADT: 14,820

I-81 NB; SR 0081

Good

Over: TWP RD 318; KOHN RD

1.5 MI.N.OF PROGRESS, Dauphin, PA

Built 1969 Load: 37.2 t ADT: 41,880

SR 1021

Good

Over: BREAKNECK RUN

BULLSKIN TOWNSHIP, Fayette, PA

Built 1938 Load: 37.2 t ADT: 221

US 30 EB; SR 0030

Good

Over: CONOCOCHEAGUE CREEK

CHAMBERSBURG BORO, Franklin, PA

Built 1930 Load: 37.2 t ADT: 18,734

US 22

Good

Over: PIKES RUN

0.9 MILE WEST OF TR 829, Huntingdon, PA

Built 1988 Load: 37.2 t ADT: 15,442

SR4024 WINOLA ROAD

Good

Over: N.S. RR

CLARKS SUMMIT BO JCT TR 6, Lackawanna, PA

Built 1996 Load: 37.2 t ADT: 6,112

1080 Mohler Church

Good

Over: US 222; SR 0222

1 MI. N.E. OF US 322, Lancaster, PA

Built 1971 Load: 37.2 t ADT: 2,628

SR 1010

Good

Over: TRIB. TO CONESTOGA RIVER

1 MI. W. OF MARTINDALE, Lancaster, PA

Built 1991 Load: 37.2 t ADT: 4,563

SR 0079 NB

Good

Over: JAMISON RUN

3564 N OF SR 1016, Lawrence, PA

Built 1963 Load: 37.2 t ADT: 9,497

SR 0079 SB

Good

Over: JAMISON RUN

3612 N OF SR 1016, Lawrence, PA

Built 1963 Load: 37.2 t ADT: 9,235

MT. JACKSON ROAD

Good

Over: PA TURNPIKE (376 EB-WB)

2.0 MI W OF SR 3009, Lawrence, PA

Built 1992 Load: 37.2 t ADT: 4,424

LAKEWOOD RD

Good

Over: NESHANNOCK CREEK

037022 WILMINGTON TWP, Lawrence, PA

Built 2001 Load: 37.2 t ADT: 200

SR 2002 Rocherty r

Good

Over: Abandoned RR - RJCN

1.5 MI.S. LEBANON, Lebanon, PA

Built 1970 Load: 37.2 t ADT: 8,626

DOWNYFLAKE LANE

Good

Over: NORFOLK SOUTHERN RR

QUEEN CITY AIRPORT, Lehigh, PA

Built 1987 Load: 37.2 t ADT: 3,310

SR 2010 MAIN ST

Good

Over: SR 0029 TR 29 NB & SB

SUGAR NOTCH BO OVER TR 29, Luzerne, PA

Built 1969 Load: 37.2 t ADT: 4,726

T-375

Good

Over: BEAUTYS RUN

2 MI.W OF OAK LYNN, Lycoming, PA

Built 1994 Load: 37.2 t ADT: 100

T-145

Good

Over: LAUREL RUN

1.2 M. NW OF PICTURE ROCK, Lycoming, PA

Built 1993 Load: 37.2 t ADT: 80

SR 346-PA 346

Good

Over: FOSTER BROOK

GILMORE, McKean, PA

Built 1990 Load: 37.2 t ADT: 1,742

SR 1101 CREEK ROAD

Good

Over: OVER SR 79 NB

NEW VERNON TOWNSHIP, Mercer, PA

Built 1969 Load: 37.2 t ADT: 162

PA 309 BY-PASS

Good

Over: BRANCH WISSAHICKON CREEK

ENFIELD 3369H03, Montgomery, PA

Built 1958 Load: 37.2 t ADT: 58,495

MORRIS ROAD

Good

Over: SEPTA / 3256-D1

FRANKLINVILLE 3256D01, Montgomery, PA

Built 1967 Load: 37.2 t ADT: 18,173

UNIONVILLE PIKE

Good

Over: BRANCH NESHAMINY CREEK

UNIONVILLE PIKE 16H02, Montgomery, PA

Built 1983 Load: 37.2 t ADT: 12,139

PA TPK (I-276)

Good

Over: SR 3029 LR46145

SOUTH OF BRIDGEPORT, Montgomery, PA

Built 2008 Load: 37.2 t ADT: 65,138

I-80 WB

Good

Over: OVER S.R. 3013

MONTOUR-NORTHD CO. LINE, Montour, PA

Built 1962 Load: 37.2 t ADT: 13,173

GALL ROAD

Good

Over: LITTLE BUSHKILL CREEK

1 M. EAST OF PA 191, Northampton, PA

Built 1979 Load: 37.2 t ADT: 100

I-180 WB

Good

Over: I-180 OVER TWP RD T-655

3.5 MILES SOUTH OF MUNCY, Northumberland, PA

Built 1970 Load: 37.2 t ADT: 8,369

PA 849; CREEK RD.

Good

Over: BIG BUFFALO CREEK

WILA, Perry, PA

Built 1989 Load: 37.2 t ADT: 924

NEWSWANGER RD

Good

Over: LOWER LITTLE SWATARA CR

0.1 MI NORTH OF SR 895, Schuylkill, PA

Built 1860 Load: 37.2 t ADT: 50

SR 1002

Good

Over: COREY CREEK

MANSFIELD BORO, Tioga, PA

Built 1985 Load: 37.2 t ADT: 429

SR 3001

Good

Over: ELK RUN

VILLAGE OF MARSHLANDS, Tioga, PA

Built 1974 Load: 37.2 t ADT: 169

SR 4005

Good

Over: OVER NORTH FORK

0.75 N OF POTTER BROOK, Tioga, PA

Built 1961 Load: 37.2 t ADT: 434

SR 4014

Good

Over: OVER CROOKED CREEK

1 MI SE OF LITTLE MARSH, Tioga, PA

Built 1984 Load: 37.2 t ADT: 210

LIBERTY TWP T-323

Good

Over: BLOCKHOUSE CREEK

0.7 MI. N. OF LIBERTY, Tioga, PA

Built 1989 Load: 37.2 t ADT: 50

SR 3002 MCGRAW RD

Good

Over: OVER PINE CREEK

SOUTHWEST TOWNSHIP, Warren, PA

Built 1978 Load: 37.2 t ADT: 493

FRYE LANE

Good

Over: MAPLE CREEK trib

OFF S.R. 2027, Washington, PA

Built 1920 Load: 37.2 t ADT: 10

T822;CONEWAGO ROAD

Good

Over: DAVIDSBURG RUN

1.6NW DAVIDSBURG/SALEM RN, York, PA

Built 1999 Load: 37.2 t ADT: 219

16TH STREET

Good

Over: RAMP EB-15 OFF

VINE STR.EXPWAY. 3590D07, Philadelphia, PA

Built 1989 Load: 37.2 t ADT: 12,793

RAMP NV

Good

Over: 2ND;3RD RMPS.N2V S3

I-95 AT VINE STR. 3590H07, Philadelphia, PA

Built 1989 Load: 37.2 t ADT: 25,543

SR 0006 WB EXIT 1

Good

Over: SR 2008 MARSHWOOD ROAD

THROOP BOROUGH EXIT #1, Lackawanna, PA

Built 1996 Load: 37.2 t ADT: 12,967

SR 0188

Good

Over: SOUTH FORK TENMILE CREEK

FRANKLIN TOWNSHIP, Greene, PA

Built 1998 Load: 37.2 t ADT: 4,152

SR 258 BUTLER PIKE

Good

Over: OVER NESHANNOCK CREEK

FINDLEY TOWNSHIP, Mercer, PA

Built 1998 Load: 37.2 t ADT: 2,720

Showing 14,901-14,950 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.