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 1020 FREEMONT

Good

Over: OVER CLARKS RUN

TOWNVILLE BOROUGH, Crawford, PA

Built 1987 Load: 55.3 t ADT: 448

PA 443; SR 0443

Good

Over: FISHING CREEK

2 MI. N.E. FT. HUNTER, Dauphin, PA

Built 1995 Load: 55.3 t ADT: 1,556

SR 0040

Good

Over: Southwest PA Railroad

SOUTH UNION TOWNSHIP, Fayette, PA

Built 1993 Load: 55.3 t ADT: 5,526

SR 0040

Good

Over: Southwest PA Railroad

SOUTH UNION TOWNSHIP, Fayette, PA

Built 1993 Load: 55.3 t ADT: 5,601

PA 433;Rowe Run Rd

Good

Over: Muddy Run

0.5 mi. S. of Orrstown, Franklin, PA

Built 1934 Load: 55.3 t ADT: 1,008

SR 4013

Good

Over: ROARING RUN

1 MI.N.OF ENID, Fulton, PA

Built 1998 Load: 55.3 t ADT: 440

SR 0084 I-84 WB

Good

Over: TIGUE STREET

DUNMORE BORO OVR TIGUE ST, Lackawanna, PA

Built 1996 Load: 55.3 t ADT: 23,266

PA TPK (I-376) WB

Good

Over: T-319

NEW BEAVER BOROUGH, Lawrence, PA

Built 1992 Load: 55.3 t ADT: 9,871

PA TPK (I-376)

Good

Over: T-343

NEW BEAVER BOROUGH, Lawrence, PA

Built 1992 Load: 55.3 t ADT: 9,871

PA TPK (I-376)

Good

Over: T-343

NEW BEAVER BOROUGH, Lawrence, PA

Built 1992 Load: 55.3 t ADT: 9,871

I-180 EBL

Good

Over: SR 2045

0.5 MI E OF MONTOURSVILLE, Lycoming, PA

Built 1976 Load: 55.3 t ADT: 11,505

SR-0180 WBL

Good

Over: OVER SR 2045

0.5 MI E OF MONTOURSVILLE, Lycoming, PA

Built 1976 Load: 55.3 t ADT: 11,611

SR 2022

Good

Over: MILL CREEK

1.5 MI NW OF WARRENSVILLE, Lycoming, PA

Built 1973 Load: 55.3 t ADT: 814

SALFORD STATION RD

Good

Over: GOSHENHOPPEN CREEK

E. OF PA 29 13K4/3029D5, Montgomery, PA

Built 1992 Load: 55.3 t ADT: 1,061

SWAMP CREEK ROAD

Good

Over: SWAMP CREEK

0.5 Mi N SR73 ADC 2915-B8, Montgomery, PA

Built 2007 Load: 55.3 t ADT: 666

SR 4020

Good

Over: LITTLE SHAMOKIN CREEK

VILLAGE OF AUGUSTAVILLE, Northumberland, PA

Built 1970 Load: 55.3 t ADT: 1,221

SR 4005

Good

Over: KREBS GAP RUN

3MI W OF BENFER, Snyder, PA

Built 1951 Load: 55.3 t ADT: 411

SR 4026

Good

Over: EAST BRANCH COXES CREEK

.5 MI.NE.OF SOMERSET, Somerset, PA

Built 1956 Load: 55.3 t ADT: 3,419

SR 4035

Good

Over: CATLIN HOLLOW CREEK

3 MI.EAST OF CHARLESTON, Tioga, PA

Built 1985 Load: 55.3 t ADT: 1,686

I - 80 EB

Good

Over: OVER SR1011&UN.CO.IND.RR

1 MI N OF NEW COLUMBIA, Union, PA

Built 1962 Load: 55.3 t ADT: 13,743

SR 0080 WB

Good

Over: OVER SR1011&UN.CO.IND.RR

1 MI N OF NEW COLUMBIA, Union, PA

Built 1962 Load: 55.3 t ADT: 13,946

SR 3041

Good

Over: LACKAWAXEN RIVER

TEXAS TWP 300 S SR 3032, Wayne, PA

Built 1994 Load: 55.3 t ADT: 161

PA TPK (PA-66)

Good

Over: T-690

HEMPFIELD TWP, Westmoreland, PA

Built 1991 Load: 55.3 t ADT: 3,763

FOURTH STREET

Good

Over: LITTLE PUCKETA CREEK

100 EAST OF SR 366, Westmoreland, PA

Built 1999 Load: 55.3 t ADT: 550

SR 0029 TR 29

Good

Over: MESHOPPEN CREEK

LEMON TWP .5 M N SR 1006, Wyoming, PA

Built 1989 Load: 55.3 t ADT: 2,911

SR 2018

Good

Over: LEONARD CREEK

MONROE TWP 240 E TR 309, Wyoming, PA

Built 1934 Load: 55.3 t ADT: 781

PA-295; Susq.Trail

Good

Over: I-83; SR 0083

I-83 / PA-297 Interchange, York, PA

Built 1959 Load: 55.3 t ADT: 3,949

MUNDIS RACE ROAD

Good

Over: TRIB. TO CODORUS CREEK

1.7E CMIGSVL/TR.CODORUSCR, York, PA

Built 1992 Load: 55.3 t ADT: 1,500

S.R. 973

Good

Over: LARRYS CREEK

2 MI E OF SALLADASBURG, Lycoming, PA

Built 1997 Load: 55.3 t ADT: 340

SR1039 MEREDITH ST

Good

Over: TR 6 CASEY HIGHWAY

CARBONDALE TWP OVER TR 6, Lackawanna, PA

Built 1995 Load: 55.3 t ADT: 8,526

SR3044(BERKSHIRE)

Good

Over: SR 0222; RAMP I & J

BERKSHIRE BLVD., Berks, PA

Built 1997 Load: 55.3 t ADT: 1,447

SR 3022 RUTLEDGE R

Good

Over: OVER LACAWANNOCK CREEK

JEFFERSON TOWNSHIP, Mercer, PA

Built 1999 Load: 55.3 t ADT: 258

SR 4002 (Main St.)

Good

Over: W Br Conococheague Creek

Fort Louden, Franklin, PA

Built 2001 Load: 55.3 t ADT: 944

SR 3041

Good

Over: SR 99 - I 99

2 MI N HOUSERVILLE, Centre, PA

Built 2000 Load: 55.3 t ADT: 10,549

RAMP D

Good

Over: KELLY DRIVE(NB)&RAMP E

GUSTINE LAKE INTC 3479H08, Philadelphia, PA

Built 2002 Load: 55.3 t ADT: 6,248

SR 147 FUTURE NB

Good

Over: OVER TWP 589

0.5 MILE NORTH OF MILTON, Northumberland, PA

Built 2002 Load: 55.3 t ADT: 8,515

SR 1009

Good

Over: LUDINGTON RUN

2 MILES NORTH NEWFIELD, Potter, PA

Built 2003 Load: 55.3 t ADT: 86

SR 0547 TR 547

Good

Over: TRIB NINE PARTNERS CREEK

HARFORD TWP .1 M W I-81, Susquehanna, PA

Built 2004 Load: 55.3 t ADT: 367

T-554

Good

Over: LOSEY CREEK

2.4 MI NW OF KEENYVILLE, Tioga, PA

Built 2004 Load: 55.3 t ADT: 50

SR 3017

Good

Over: SWARR RUN

CHURCH ST. LANDISVILLE, Lancaster, PA

Built 1999 Load: 55.3 t ADT: 4,245

HOFFA MILL RD.

Good

Over: OVER MILL RACE

1.5 MI.NE OF BUFFALO X-RD, Union, PA

Built 2005 Load: 55.3 t ADT: 601

WEST UNION STREET

Good

Over: S. BRANCH NEWPORT CREEK

400 FT NE OF ALDEN RD, Luzerne, PA

Built 2004 Load: 55.3 t ADT: 1,500

SR 90 WB

Good

Over: OVER ELK CREEK

GIRARD TOWNSHIP, Erie, PA

Built 2006 Load: 55.3 t ADT: 10,983

SR2051

Good

Over: ROARING RUN

50 feet west of T-460, Armstrong, PA

Built 2005 Load: 55.3 t ADT: 221

I-81 SB

Good

Over: PA72 & SWATARA CREEK

2 miles north of exit #90, Lebanon, PA

Built 2005 Load: 55.3 t ADT: 10,781

SR 474 JAMESTOWN

Good

Over: OVER DEAN RUN

VENANGO TOWNSHIP, Erie, PA

Built 2007 Load: 55.3 t ADT: 889

MERION AVENUE

Good

Over: AMTRAK PHI-HBG

400 N of US-30 3477-J7, Montgomery, PA

Built 2007 Load: 55.3 t ADT: 7,100

PA TPK (I-576)

Good

Over: RAMP RE OVER SR 22

ROBINSON TWP, Washington, PA

Built 2006 Load: 55.3 t ADT: 2,025

PA TPK (I-576)

Good

Over: RAMP S OVER SR 22

ROBINSON TWP, Washington, PA

Built 2004 Load: 55.3 t ADT: 2,025

Maple Shade Rd

Good

Over: Ball Run

.5 Mi W of 896, Lancaster, PA

Built 2009 Load: 55.3 t ADT: 375

Showing 19,501-19,550 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.