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

PA 895

Fair

Over: BEAR CREEK

5 MI. W.OF AUBURN BORO, Schuylkill, PA

Built 1938 Load: 42.6 t ADT: 711

KALMIA ST. T-420

Fair

Over: WICONISCO CREEK

S.OF SR 209 E.OF SR 325, Schuylkill, PA

Built 1991 Load: 42.6 t ADT: 175

SR 4008

Fair

Over: MIDDLE CREEK

1MI NW OF BEAVER SPRINGS, Snyder, PA

Built 1963 Load: 42.6 t ADT: 986

ADAMS T473

Fair

Over: MOYERS MILL RUN

1 MI.E OF TROXELVILLE, Snyder, PA

Built 1930 Load: 42.6 t ADT: 50

T-568

Fair

Over: S.BR.OF MIDDLE CR.

2 MI.W OF BEAVER SPRINGS, Snyder, PA

Built 1984 Load: 42.6 t ADT: 75

SR 1010

Fair

Over: OVEN RUN

1.6 MI.E.OF KANTNER, Somerset, PA

Built 1914 Load: 42.6 t ADT: 102

PA TPK (I-76)

Fair

Over: BRANCH OF COXES CREEK

SOMERSET, Somerset, PA

Built 1939 Load: 42.6 t ADT: 30,880

T-501 BEAGLE ROAD

Fair

Over: COXES CREEK

3 MI.NE.OF ROCKWOOD, Somerset, PA

Built 1987 Load: 42.6 t ADT: 50

COLE RUN ROAD

Fair

Over: BLUE HOLE CREEK

2 MI NW OF FALL RUN ROAD, Somerset, PA

Built 1999 Load: 42.6 t ADT: 40

SR 0081 I-81 NB

Fair

Over: SR 0092 TR 92

LENOX TWP OVER TR 92, Susquehanna, PA

Built 1961 Load: 42.6 t ADT: 10,559

SR 0081 I-81 SB

Fair

Over: SR 0092 TR 92

LENOX TWP OVER TR 92, Susquehanna, PA

Built 1961 Load: 42.6 t ADT: 9,345

SR 0081 I-81 NB

Fair

Over: SR 1010 & SUSQUEHANNA RV

GREAT BEND TWP.3M S TR171, Susquehanna, PA

Built 1961 Load: 42.6 t ADT: 11,236

T-693 (Kellum Rd)

Fair

Over: CHOCONUT CREEK

5 MI NE OF FRIENDSVILLE, Susquehanna, PA

Built 1900 Load: 42.6 t ADT: 100

T541 (BEAUMONT RD)

Fair

Over: GAYLORD CREEK

3 MI SW OF MIDDLETOWN CTR, Susquehanna, PA

Built 1920 Load: 42.6 t ADT: 50

S.R. 414

Fair

Over: BR. BABBS CREEK

3 MI SE OF MORRIS, Tioga, PA

Built 1957 Load: 42.6 t ADT: 277

SR 2022

Fair

Over: OVER GAFFERS CREEK

3 MI E OF MAINESBURG, Tioga, PA

Built 1956 Load: 42.6 t ADT: 295

SR 4021

Fair

Over: COWAN.RIVER & W.RIVER ST

BORO OF ELKLAND, Tioga, PA

Built 1966 Load: 42.6 t ADT: 312

T421 COVINGTON TWP

Fair

Over: CANOE CAMP CREEK

1.6 MI NE OF COVINGTON, Tioga, PA

Built 1975 Load: 42.6 t ADT: 20

I-80 WB

Fair

Over: OVER WHITE DEER CREEK

5 MI W OF WHITE DEER, Union, PA

Built 1970 Load: 42.6 t ADT: 10,065

PA 304

Fair

Over: SWEITZERS RUN

3 MI N OF NEW BERLIN, Union, PA

Built 1941 Load: 42.6 t ADT: 2,663

SR 62 PETROLEM ST.

Fair

Over: OVER CONRAIL/ALLEGHENYR

OIL CITY, Venango, PA

Built 1995 Load: 42.6 t ADT: 5,616

T-639 COE ROAD

Fair

Over: WEST PITHOLE CREEK

OIL CREEK TOWNSHIP, Venango, PA

Built 1938 Load: 42.6 t ADT: 100

SR 6 GRAND ARMY HY

Fair

Over: OVER DEER LICK RUN

SHEFIELD TOWNSHIP, Warren, PA

Built 1950 Load: 42.6 t ADT: 2,149

SR 0018

Fair

Over: BRANCH OF SHORT CREEK

MORRIS TOWNSHIP, Washington, PA

Built 1959 Load: 42.6 t ADT: 2,573

SR 0070

Fair

Over: DUTCH FORK BUFFALO CREEK

DONEGAL TOWNSHIP, Washington, PA

Built 1961 Load: 42.6 t ADT: 14,338

SR 0070

Fair

Over: TOWNSHIP ROAD 532

NORTH FRANKLIN TOWNSHIP, Washington, PA

Built 1960 Load: 42.6 t ADT: 14,205

SR 0917

Fair

Over: PIGEON CREEK

FALLOWFIELD TOWNSHIP, Washington, PA

Built 1985 Load: 42.6 t ADT: 1,530

SR 1010

Fair

Over: BRUSH RUN

PETERS TOWNSHIP, Washington, PA

Built 1929 Load: 42.6 t ADT: 6,733

SR 4014

Fair

Over: BALLS CREEK

SCOTT TWP 2.8 M E SR 4037, Wayne, PA

Built 1988 Load: 42.6 t ADT: 148

SR 0356

Fair

Over: BRANCH OF PINE RUN

ALLEGHENY TOWNSHIP, Westmoreland, PA

Built 1972 Load: 42.6 t ADT: 8,071

SR 0981

Fair

Over: SR 0119

EAST HUNTINGDON TOWNSHIP, Westmoreland, PA

Built 1964 Load: 42.6 t ADT: 1,791

SR 1011

Fair

Over: TUBMILL CREEK

FAIRFIELD TOWNSHIP, Westmoreland, PA

Built 1974 Load: 42.6 t ADT: 240

SR 3021

Fair

Over: WEBSTER HOLLOW RUN

ROSTRAVER TOWNSHIP, Westmoreland, PA

Built 1964 Load: 42.6 t ADT: 1,402

SR 3095

Fair

Over: SR 0119

HEMPFIELD TOWNSHIP, Westmoreland, PA

Built 1977 Load: 42.6 t ADT: 4,303

PA TPK (I-76)

Fair

Over: T-812

NORTH OF MT JOY, Westmoreland, PA

Built 1991 Load: 42.6 t ADT: 34,232

MAMMOTH/Co PARK RD

Fair

Over: WELTY RUN

150 SW OF BLACKSMITH RD, Westmoreland, PA

Built 1978 Load: 42.6 t ADT: 1,625

SR 1002

Fair

Over: BILLINGS MILL CREEK

TUNKHNCK TP .2M E SR 1001, Wyoming, PA

Built 1990 Load: 42.6 t ADT: 297

SR 2009 BRACE RD

Fair

Over: WHITELOCK CREEK

N MORLND TP 250 S TR 292, Wyoming, PA

Built 1961 Load: 42.6 t ADT: 472

PA 24; N.Sherman

Fair

Over: CODORUS CREEK

2 MI NE PLEASUREVILLE, York, PA

Built 1933 Load: 42.6 t ADT: 5,989

I-83; SR 0083

Fair

Over: TRIB OF E BR CODORUS CRK

1 MI.E. OF LOGANVILLE, York, PA

Built 1958 Load: 42.6 t ADT: 37,168

I-83; SR 0083

Fair

Over: TRIB TO LITTLE CONEWAGO

0.5 MI.S. OF EXIT-28, York, PA

Built 1954 Load: 42.6 t ADT: 43,104

I-83; SR 0083

Fair

Over: Conewago Creek

1.5 MI N of Exit-28 I-83, York, PA

Built 1954 Load: 42.6 t ADT: 45,034

I-83; SR 0083

Fair

Over: FISHING CREEK

.3 MI N OF I83 EXT 14, York, PA

Built 1951 Load: 42.6 t ADT: 46,183

PA 124; E.PROSPECT

Fair

Over: BR CABIN CREEK

1 MI. W. OF EAST PROSPECT, York, PA

Built 1923 Load: 42.6 t ADT: 2,370

STINE HILL ROAD

Fair

Over: BARSHINGER CREEK

BARSHINGER CR/YRK TWP CR, York, PA

Built 1955 Load: 42.6 t ADT: 264

POPLARS ROAD

Fair

Over: LITTLE CONEWAGO CREEK

POPLARS RD./LIT.CONEWAGO, York, PA

Built 1968 Load: 42.6 t ADT: 2,553

SCHUYLKILL EXWY.EB

Fair

Over: L.R.67058 RAMP B

NEAR NEIL DRIVE 3479J10, Philadelphia, PA

Built 1972 Load: 42.6 t ADT: 57,144

SCHUYLKILL EXPWAY.

Fair

Over: BLACK ROAD

NR.COLUMBIA BRDG. 3589G03, Philadelphia, PA

Built 1956 Load: 42.6 t ADT: 109,240

INTERSTATE 95 N.B.

Fair

Over: PENROSE AVE.& TRIB MINGO

N.PLATT BRIDGE 3699 D08, Philadelphia, PA

Built 1984 Load: 42.6 t ADT: 73,611

INTERSTATE 95

Fair

Over: STATE RD/ RR/ PRISON RD

NEAR PRINCTION ST 3482G06, Philadelphia, PA

Built 1965 Load: 42.6 t ADT: 159,848

Showing 8,701-8,750 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.