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

T-343 Cloister Dr

Good

Over: NORFOLK SOUTHERN RR

900 FT SW OF T-918, Lancaster, PA

Built 1968 Load: 19.1 t ADT: 300

MORAVIA STREET

Good

Over: SR 422

AT MORAVIA EXIT, Lawrence, PA

Built 1971 Load: 19.1 t ADT: 3,024

MCLEAN STREET

Good

Over: SPRING RUN

150 FT EAST OF HAZLE AVE, Luzerne, PA

Built 1991 Load: 19.1 t ADT: 175

BRIDGE 1311 T-651

Good

Over: OVER BIG RUN

COLT RD PYMATUNING TWP., Mercer, PA

Built 1975 Load: 19.1 t ADT: 1,084

T-581 (PLANK ROAD)

Good

Over: TRIB. BEAVER MEADOW POND

3 MILES N.W. OF HARFORD, Susquehanna, PA

Built 1964 Load: 19.1 t ADT: 90

T-498 (UPHAM ROAD)

Good

Over: GAYLORD CREEK

2.6 MI SW OF MIDDLETOWN, Susquehanna, PA

Built 1973 Load: 19.1 t ADT: 75

T664 USCHAK ROAD

Good

Over: UNION RUN

500 S OF ANDROSTIC RD, Westmoreland, PA

Built 1995 Load: 19.1 t ADT: 65

67th Street

Good

Over: AMTRAK (NE Corridor)

S of Paschall Ave 36F05, Philadelphia, PA

Built 1983 Load: 19.1 t ADT: 2,450

SR3008 CETRONIA RD

Good

Over: DETENTION POND OVERFLOW

1.5 MI.NE OF SR 100, Lehigh, PA

Built 1997 Load: 19.1 t ADT: 100

T- 808 HOWARD HILL

Good

Over: RHINEY CREEK

LIBERTY TWP; T-808, Susquehanna, PA

Built 2003 Load: 19.1 t ADT: 50

SR 1022

Good

Over: SWATARA CREEK

.5 MI.E.OF PA 72, Lebanon, PA

Built 2004 Load: 19.1 t ADT: 695

T-584 STILES STATI

Good

Over: DUTCH RUN

3/4MI EAST OF SR 1013 INT, Indiana, PA

Built 1995 Load: 19.1 t ADT: 50

T-869 SAMUEL DRIVE

Good

Over: TRIB TO BRUSH CREEK

0.15 MI NE of SR 3024, Butler, PA

Built 2002 Load: 19.1 t ADT: 100

T626 SPORTSMAN RD

Good

Over: FOX RUN

2.5 MILES NW CARROLLTOWN, Cambria, PA

Built 2012 Load: 19.1 t ADT: 50

T-483 WIKES ROAD

Good

Over: MURRAY RUN

0.6 MI EAST of SR 26, Huntingdon, PA

Built 2001 Load: 19.1 t ADT: 13

T-750

Good

Over: TRIB EAST BR BRIAR CRK

NORTH END OF BERWICK BORO, Columbia, PA

Built 2009 Load: 19.1 t ADT: 50

HOOKSTOWN GRADE RD

Good

Over: BUSINESS 376

OVER SR 3160, Allegheny, PA

Built 1970 Load: 20.0 t ADT: 592

SR 4007

Good

Over: SWATARA CREEK

4 MI.S. OF ONO, Lebanon, PA

Built 1963 Load: 20.0 t ADT: 2,177

SR 0006 TR 6

Good

Over: TUNKHANNOCK CREEK

TUNKHANNOCK BO 268E TR29, Wyoming, PA

Built 2000 Load: 20.0 t ADT: 9,327

S.R 6006

Good

Over: SR 0347 TR 347

BLCKLY BORO OVER TR 347, Lackawanna, PA

Built 2007 Load: 20.0 t ADT: 21,009

SR 4016

Good

Over: HUNLOCK CREEK

HUNLOCK TWP 300W SR 4001, Luzerne, PA

Built 2011 Load: 20.0 t ADT: 4,420

Stonehenge Drive

Good

Over: Trib. to Bachman Run

970 ft E of Fruitville Pk, Lancaster, PA

Built 1985 Load: 20.0 t ADT: 200

FR 191

Good

Over: HOFFMAN RUN

0.8 MILES NW OF SR 321, Elk, PA

Built 1937 Load: 20.1 t ADT: 30

T-433 JOHNS ROAD

Good

Over: GLADE RUN

400 feet west of T-530, Armstrong, PA

Built 1992 Load: 20.9 t ADT: 50

SR 3002

Good

Over: BACK CREEK

.5 MI S OF WILLIAMSON, Franklin, PA

Built 1973 Load: 20.9 t ADT: 912

I-78 (LR 1045)

Good

Over: SR 3009 (RUPPSVILLE RD)

OVER RUPPSVILLE RD., Lehigh, PA

Built 1988 Load: 20.9 t ADT: 113,637

3RD STREET SR2068

Good

Over: LYCOMING CREEK

CITY OF WMSPT. THIRD ST., Lycoming, PA

Built 1991 Load: 20.9 t ADT: 3,982

SR 2101 HARTWICK R

Good

Over: OVER SR 80 EB/WB

FINDLEY TOWNSHIP, Mercer, PA

Built 1965 Load: 20.9 t ADT: 210

PA 33 NB(LR 1098)

Good

Over: SR 1008(LR 48040)

BELFAST INTERCHANGE, Northampton, PA

Built 1969 Load: 20.9 t ADT: 21,086

PA 33 SB(LR 48040)

Good

Over: SR 1008(LR 48040)

BELFAST INTERCHANGE, Northampton, PA

Built 1969 Load: 20.9 t ADT: 19,407

SR 244-PA 244

Good

Over: WEST BR GENESEE RIVER

ELLISBURG, Potter, PA

Built 1991 Load: 20.9 t ADT: 217

SR 328

Good

Over: OVER HAMMOND CREEK

0.75 MI W OF MILLERTON, Tioga, PA

Built 1994 Load: 20.9 t ADT: 1,624

PANGBURN HOLLOW RD

Good

Over: PERRY MILL RUN

PG09 PANGBURN HOLLOW RD#9, Allegheny, PA

Built 2000 Load: 20.9 t ADT: 678

TR 6 TUNK BYPASS

Good

Over: TUNKHANNOCK CREEK

TUNKHNNCK BO 415 E TR 92, Wyoming, PA

Built 2000 Load: 20.9 t ADT: 9,051

SR 80-I 80

Good

Over: BALD EAGLE CREEK

1 MI EAST EXIT 158, Centre, PA

Built 2005 Load: 20.9 t ADT: 11,358

SR 80-I 80

Good

Over: BALD EAGLE CREEK

1 MI EAST EXIT 158, Centre, PA

Built 2006 Load: 20.9 t ADT: 11,747

US 30

Good

Over: QUEMAHONING CREEK

FERRELLTON, Somerset, PA

Built 2006 Load: 20.9 t ADT: 5,205

SR 51 SB

Good

Over: 04136 641 RP.A & LOCAL

980 SOUTH ROCH.MONACA BR, Beaver, PA

Built 1965 Load: 20.9 t ADT: 10,288

PGH-MCKEESPORT BL

Good

Over: MAPLE AVENUE

MA26 MAPLE AV UNDERPASS, Allegheny, PA

Built 1952 Load: 21.8 t ADT: 22,600

SR 0018 SH

Good

Over: BLOCKHOUSE RUN CREEK

@ FISH COMMISSION ACCESS, Beaver, PA

Built 1958 Load: 21.8 t ADT: 17,005

SR 664-PA 664

Good

Over: W BR SUSQUEHANNA RIVER

CITY OF LOCK HAVEN, Clinton, PA

Built 1986 Load: 21.8 t ADT: 3,405

WIRT ROAD

Good

Over: E BR ANTIETAM CREEK

250 FT WEST OF T-378, Franklin, PA

Built 1999 Load: 21.8 t ADT: 20

SR 1012 WAYNE ST

Good

Over: LACKAWANNA RIVER

ARCHBALD BOR 1.9M E 1023, Lackawanna, PA

Built 1938 Load: 21.8 t ADT: 2,138

SR3015 BLACK CK RD

Good

Over: NESCOPECK CREEK

NESCOPECK TWP 1M N SR3042, Luzerne, PA

Built 1996 Load: 21.8 t ADT: 442

SR 1009

Good

Over: STARRUCCA CREEK

HARMONY TWP 92 W SR 1011, Susquehanna, PA

Built 1986 Load: 21.8 t ADT: 471

SR3037 MILL BRK RD

Good

Over: MIDDLE CREEK

CHERRY RIDGE .1M N SR3024, Wayne, PA

Built 1943 Load: 21.8 t ADT: 60

DETURK ROAD

Good

Over: LITTLE MANATAWNY CREEK

NEAR PA 662/73, Berks, PA

Built 1996 Load: 21.8 t ADT: 362

SR 6 GRAND ARMY HY

Good

Over: OVER B.& L.E. RAILROAD

SADSBURY TOWNSHIP, Crawford, PA

Built 2000 Load: 21.8 t ADT: 1,916

SR 0118

Good

Over: HUNTINGTON CREEK

ROSS TWP 1.1 M W SR 4031, Luzerne, PA

Built 2007 Load: 21.8 t ADT: 3,709

PINE MOUNTAIN DR

Good

Over: STUMP RUN

0.3 MI E. OF MT CYDONIA R, Franklin, PA

Built 1985 Load: 21.8 t ADT: 100

Showing 12,501-12,550 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.