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

BRIDGE 1317 T-422

Good

Over: OVER BRUSH RUN

SHENANGO PK.RD.PYM.TWP., Mercer, PA

Built 1967 Load: 64.4 t ADT: 858

PA 309 BY-PASS

Good

Over: HIGHLAND AVENUE

UPPER DUBLIN 3257H07, Montgomery, PA

Built 1958 Load: 64.4 t ADT: 58,228

SR 309 BYPASS

Good

Over: LOCH ALSH AVENUE

UPPER DUBLIN 3257H06, Montgomery, PA

Built 1958 Load: 64.4 t ADT: 58,228

SR 2002

Good

Over: PINE CREEK

GALETON BOROUGH, Potter, PA

Built 1994 Load: 64.4 t ADT: 1,964

PA TPK (I-76)

Good

Over: CSX RAILROAD

SOMERSET, Somerset, PA

Built 2004 Load: 64.4 t ADT: 29,452

WEST PRINCESS ST

Good

Over: CODORUS CREEK

W PRINCESS;CODORUS;YORK, York, PA

Built 1932 Load: 64.4 t ADT: 8,507

CHESTERVILLE ROAD

Good

Over: BIG ELK CREEK

LEWISVILLE 53A11, Chester, PA

Built 2000 Load: 64.4 t ADT: 2,435

T-479 BAGDAD ROAD

Good

Over: TROUT RUN

1/2 MI WEST OF SR 19, Erie, PA

Built 1999 Load: 64.4 t ADT: 636

PA TPK (TOLL 43)

Good

Over: SR 1065

2MI. NORTH OF RT136 INT., Washington, PA

Built 2001 Load: 64.4 t ADT: 5,533

SR2030

Good

Over: GORBY RUN

CALIFORNIA BOROUGH, Washington, PA

Built 2003 Load: 64.4 t ADT: 1,013

HOPEWELL ROAD

Good

Over: BRANCH TWEED CREEK

NEAR OXFORD 51A03, Chester, PA

Built 2004 Load: 64.4 t ADT: 1,456

SR 3018(LR 45095)

Good

Over: APPENZELL CREEK

WEST OF NEOLA, Monroe, PA

Built 2005 Load: 64.4 t ADT: 577

PA TPK (I-576)

Good

Over: SR 0030

FINDLAY, Allegheny, PA

Built 2006 Load: 64.4 t ADT: 2,025

PA TPK (I-576)

Good

Over: SR 0030

FINDLAY, Allegheny, PA

Built 2006 Load: 64.4 t ADT: 2,025

PA 442

Good

Over: Little Muncy Creek

1.5 Mi. W. of Clarkstown, Lycoming, PA

Built 2007 Load: 64.4 t ADT: 3,614

SR 2014

Good

Over: TRIB TO PENNS CREEK

PENN HALL, Centre, PA

Built 2009 Load: 64.4 t ADT: 197

T-379

Good

Over: PA TPK (I-76)

HOPEWELL TWP, Cumberland, PA

Built 2009 Load: 64.4 t ADT: 542

U.S. ROUTE 209

Good

Over: RAYMONDSKILL CREEK

2.7 MILES SOUTH OF ROUTE, Pike, PA

Built 1955 Load: 64.4 t ADT: 1,631

PA 501; SR 0501

Good

Over: HAMMER CREEK

SCHAEFFERSTOWN, Lebanon, PA

Built 2013 Load: 64.8 t ADT: 9,813

PA TPK (Access Rd)

Good

Over: Black Valley Creek

Near Everrett Maint. Shed, Bedford, PA

Built 2014 Load: 64.8 t ADT: 50

SR 1048 MEEKER RD

Good

Over: Harveys Creek

LEHMAN TWP .1 M S SR 1051, Luzerne, PA

Built 2022 Load: 64.8 t ADT: 339

TYBURN ROAD

Good

Over: CONRAIL TO U.S.STEEL

.5MI.MORRISVILLE 39E09, Bucks, PA

Built 1954 Load: 65.1 t ADT: 2,766

SR 0065 NB

Good

Over: FONTELLA ST.

TR 65 NB O/FONTELLA ST., Allegheny, PA

Built 1991 Load: 65.3 t ADT: 19,740

SHIPPINGPORT HI RD

Good

Over: SERVICE ROAD NUC PLANT

AT POWER PLANT, Beaver, PA

Built 1962 Load: 65.3 t ADT: 5,140

CO. BR # 33

Good

Over: SUGAR CREEK

E. MAIN ST. TROY BORO, Bradford, PA

Built 1994 Load: 65.3 t ADT: 900

SR2009

Good

Over: WILDCAT RUN

LAWSONHAM NO.2, Clarion, PA

Built 1938 Load: 65.3 t ADT: 427

SR 4012 SHADELAND

Good

Over: OVER MID BR CONN CREEK

BEAVER TOWNSHIP, Crawford, PA

Built 1936 Load: 65.3 t ADT: 139

SR 90 EB

Good

Over: OVER SR 0019 PEACH ST

SUMMIT TOWNSHIP, Erie, PA

Built 1995 Load: 65.3 t ADT: 20,055

SR 90 WB

Good

Over: OVER SR 0019 PEACH ST

SUMMIT TOWNSHIP, Erie, PA

Built 1996 Load: 65.3 t ADT: 19,632

SR 3006 PLUM ST.

Good

Over: OVER LITTLE CONNEAUTTEE

WASHINGTON TOWNSHIP, Erie, PA

Built 1984 Load: 65.3 t ADT: 2,894

SR 0166

Good

Over: GEORGE CREEK

SPRINGHILL/NICHOLSON TWP., Fayette, PA

Built 1994 Load: 65.3 t ADT: 1,479

PA TPK (I-76)

Good

Over: T-560 CONOCOCHE CR

METAL TWP, Franklin, PA

Built 1939 Load: 65.3 t ADT: 21,433

T-433 WAINWRIGHT

Good

Over: AULTMAN RUN

BTW SR3004 & T460, Indiana, PA

Built 1998 Load: 65.3 t ADT: 70

SR 0011 TR 11

Good

Over: ABANDONED RAILROAD

PLYMOUTH TWP .4 M E TR 29, Luzerne, PA

Built 1957 Load: 65.3 t ADT: 3,461

LINE LEXINGTON RD.

Good

Over: WEST BR. NESHAMINY CR.

.3 Mi NE PA-463 3032-G7, Montgomery, PA

Built 1998 Load: 65.3 t ADT: 3,932

BELVOIR ROAD

Good

Over: SAW MILL CREEK 3256-A10

0.67 MI N OF PLYMOUTH RD, Montgomery, PA

Built 2004 Load: 65.3 t ADT: 5,400

SR 3007

Good

Over: MAUSES CREEK

2.5 MI.WEST OF MAUSDALE, Montour, PA

Built 1985 Load: 65.3 t ADT: 286

SR 4026

Good

Over: BENNYS RUN

3 MI W OF WEIGH SCALES, Northumberland, PA

Built 1996 Load: 65.3 t ADT: 840

SR 192

Good

Over: OVER RAPID RUN

R B WINTER STATE PARK, Union, PA

Built 1939 Load: 65.3 t ADT: 870

SR 4014

Good

Over: BUCKS CREEK

ULSTER TMP 1 MILE W., Bradford, PA

Built 2001 Load: 65.3 t ADT: 2,686

SR 1003

Good

Over: TRIBUTARY PENNS CREEK

1 MI S OF CENTERVILLE, Snyder, PA

Built 2002 Load: 65.3 t ADT: 80

ROYER RD

Good

Over: COCALICO CREEK

1/2 MI NW OF SR 1018, Lancaster, PA

Built 2005 Load: 65.3 t ADT: 680

PA TPK (I-76) RPCD

Good

Over: SR 0019

CRANBERRY INTERCHANGE, Butler, PA

Built 2006 Load: 65.3 t ADT: 10,000

VALLEY GREEN ROAD

Good

Over: PA 309 FORT WASH EXPWAY

FT WASHNGTN 3369H01, Montgomery, PA

Built 2006 Load: 65.3 t ADT: 3,559

Baptist Road

Good

Over: W & LE Railroad

Baptist Road over RR, Allegheny, PA

Built 2008 Load: 65.3 t ADT: 14,037

SR 0070 Eastbound

Good

Over: Zediker St Rd (T-638)

1.3 mi E of SR 0079, Washington, PA

Built 2010 Load: 65.3 t ADT: 13,254

SR 0070 Westbound

Good

Over: Zediker St Rd (T-638)

1.3 mi E of SR 0079, Washington, PA

Built 2010 Load: 65.3 t ADT: 12,438

PA TPK (I-476)

Good

Over: SR 0073 Skippack Pike

Near N. Wales Rd 3256-A02, Montgomery, PA

Built 2014 Load: 65.3 t ADT: 65,329

OLD CARVERSVILLE

Good

Over: PAUNNACUSSING CREEK

3.4 MI W OF SR 32 2812-A8, Bucks, PA

Built 1931 Load: 65.8 t ADT: 153

SR 3018

Good

Over: LITTLE MARSH CREEK

W. OF ORRTANNA, Adams, PA

Built 1941 Load: 66.2 t ADT: 266

Showing 19,951-20,000 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.