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

RELOCATED FT PITT

Good

Over: MON WHARF FLOOD WALLS

150 Fort Pitt Blvd (Wood, Allegheny, PA

Built 2002 Load: 45.4 t ADT: 13,800

SR 3019

Good

Over: KEGG RUN

1.5 MI N OF BUENA VISTA, Bedford, PA

Built 2003 Load: 45.4 t ADT: 458

CENTER STREET

Good

Over: LITTLE LOYALSOCK CREEK

CENTER STREET DUSHORE, Sullivan, PA

Built 2003 Load: 45.4 t ADT: 216

SR 1011

Good

Over: KNAPP CREEK

1 MILE WEST OF ELDRED, McKean, PA

Built 2003 Load: 45.4 t ADT: 1,916

SR 15 NORTH BOUND

Good

Over: TIOGA RIVER

1.5 MILE S. MANSFIELD, Tioga, PA

Built 2003 Load: 45.4 t ADT: 5,424

SR 99 I-99

Good

Over: SR 550-PA 550

4 MI SOUTH STATE COLLEGE, Centre, PA

Built 2004 Load: 45.4 t ADT: 11,016

SR 322-US 322

Good

Over: WILDLIFE UNDERPASS

2 MI N PORT MATILDA, Centre, PA

Built 2004 Load: 45.4 t ADT: 5,526

US 222 NB

Good

Over: PA 100 SB

US 222 NB OVER PA 100 SB, Lehigh, PA

Built 2005 Load: 45.4 t ADT: 11,692

SR 100 SB

Good

Over: SR 6222 AND SCHAEFER RUN

SR 100 SB OVER SR 6222, Lehigh, PA

Built 2005 Load: 45.4 t ADT: 6,299

SR 22-US 22 EB

Good

Over: SR 3005 -Big Ridge Road

1.5 MI WEST OF LEWISTOWN, Mifflin, PA

Built 2005 Load: 45.4 t ADT: 4,711

T369 TUNA CROSS RD

Good

Over: TUNUNGWANT CREEK

1500 FT WEST OF E MAIN ST, McKean, PA

Built 2007 Load: 45.4 t ADT: 100

SR 4003

Good

Over: YOUNG WOMANS CREEK

GLEASONTON, Clinton, PA

Built 2006 Load: 45.4 t ADT: 625

SR0068

Good

Over: SUGAR CREEK

BRADYS BEND NO.11, Armstrong, PA

Built 2006 Load: 45.4 t ADT: 2,748

S.R. 4010

Good

Over: ACKERLY CREEK

0.5 MILES EAST OF T.R. 6, Lackawanna, PA

Built 2006 Load: 45.4 t ADT: 530

SR 4013

Good

Over: MAPLE RUN CREEK

2.5 M SOUTH OF TR 118, Luzerne, PA

Built 2007 Load: 45.4 t ADT: 189

S.R. 0170 T.R. 170

Good

Over: W. BR. LACKAWAXEN RIVER

1 MILE NORTH OF T.R. 247, Wayne, PA

Built 2007 Load: 45.4 t ADT: 135

US 222

Good

Over: OVER SR 3008

UPPER MACUNGIE, Lehigh, PA

Built 2006 Load: 45.4 t ADT: 20,363

SR 0222

Good

Over: OVER NORFOLK SOUTHERN RR

UPPER MACUNGIE, Lehigh, PA

Built 2007 Load: 45.4 t ADT: 20,403

SR 204

Good

Over: Penns Creek

New Berlin Boro, Union, PA

Built 2007 Load: 45.4 t ADT: 4,939

SR 4015

Good

Over: BELLS GAP RUN

1 MI. W. OF BELLWOOD, Blair, PA

Built 2007 Load: 45.4 t ADT: 1,335

PA 434

Good

Over: DELAWARE RIVER

SHOHOLA TWP AT NY LINE, Pike, PA

Built 2007 Load: 45.4 t ADT: 1,817

SR 219-US 219

Good

Over: SR 4013 (PA 46)

OVER KENDALL AVE, McKean, PA

Built 2007 Load: 45.4 t ADT: 5,568

T-850 ECHO VLLY RD

Good

Over: LITTLE CHIQUES CREEK

1500 FT NE OF SR 4025, Lancaster, PA

Built 2007 Load: 45.4 t ADT: 300

T-465 CREMERY RD.

Good

Over: JACKSON RUN

0.2 MI SOUTH OF SR69, Warren, PA

Built 2008 Load: 45.4 t ADT: 200

SR 1012

Good

Over: CLEARFIELD CREEK

0.39 MILE WEST FROM PA 53, Cambria, PA

Built 2008 Load: 45.4 t ADT: 144

PA 118

Good

Over: LITTLE MUNCY CREEK

1 Mi. NW of Unityville, Lycoming, PA

Built 2008 Load: 45.4 t ADT: 2,530

SR 15 SB

Good

Over: UNNAMED TR. TO TIOGA RIV

3 MI. N. TIOGA BORO, Tioga, PA

Built 2008 Load: 45.4 t ADT: 4,416

MAPLE STREET

Good

Over: ACKERLY CREEK

DALTON BORO 250NE OF RT6, Lackawanna, PA

Built 2008 Load: 45.4 t ADT: 100

U. PLEASANT STR RD

Good

Over: PLEASANT STREAM

EAST OF MASTEN, Lycoming, PA

Built 2005 Load: 45.4 t ADT: 5

SR 2006

Good

Over: FLAUGHERTY CREEK

1.2 MILE EAST FROM US 219, Somerset, PA

Built 2009 Load: 45.4 t ADT: 1,381

SR 879-PA 879

Good

Over: W BR SUSQUEHANNA RIVER

CLEARFIELD, Clearfield, PA

Built 2009 Load: 45.4 t ADT: 7,515

T-583

Good

Over: TR. LITTLE FISHING CREEK

1 MI SE OF MILLVILLE, Columbia, PA

Built 2008 Load: 45.4 t ADT: 100

SR 4049

Good

Over: Br of Chartiers Creek

Arden, Washington, PA

Built 2009 Load: 45.4 t ADT: 7,908

SR 1087

Good

Over: Froman Run

0.1 mi S of SR 0088, Washington, PA

Built 2009 Load: 45.4 t ADT: 2,875

SR 227

Good

Over: CHERRY RUN

CORNPLANTER TOWNSHIP, Venango, PA

Built 2010 Load: 45.4 t ADT: 1,302

SR 15 NB

Good

Over: SR 4011

NB 15 OVER STEAM VALLEY, Lycoming, PA

Built 2010 Load: 45.4 t ADT: 6,017

RAMCAT ACCESS ROAD

Good

Over: RAMCAT RUN

YOUGH BIKE TRAIL PARKING, Fayette, PA

Built 2009 Load: 45.4 t ADT: 50

SR 1039

Good

Over: TRIB WARRIOR RUN

0.5 MI WEST OF TURBOTVILL, Northumberland, PA

Built 2010 Load: 45.4 t ADT: 680

T-632 CALDWELL RD

Good

Over: SCRUBGRASS CREEK

4000 feet east of SR 0066, Armstrong, PA

Built 2010 Load: 45.4 t ADT: 50

SR 1016

Good

Over: PENNS CREEK

1 MI EAST OF KRATZERVILLE, Snyder, PA

Built 2010 Load: 45.4 t ADT: 400

SR 2011

Good

Over: E BR SIDELING HILL CREEK

1.5 MI.N. ROBINSVILLE, Bedford, PA

Built 2010 Load: 45.4 t ADT: 111

SR 0090 WB

Good

Over: OVER SIX MILE CREEK

HARBOR CREEK TWP, Erie, PA

Built 2010 Load: 45.4 t ADT: 14,095

SR3003

Good

Over: CONEMAUGH RIVER

TUNNELTON, Indiana, PA

Built 2010 Load: 45.4 t ADT: 411

SR477-PA477

Good

Over: LONG RUN

SALONA, Clinton, PA

Built 2010 Load: 45.4 t ADT: 2,519

SR 0018

Good

Over: Trib to Browns Creek

4.5 mi N of SR 0021, Greene, PA

Built 2010 Load: 45.4 t ADT: 1,286

BIG RUN ROAD

Good

Over: BIG RUN

200 FT N of SR 1012, Lawrence, PA

Built 2010 Load: 45.4 t ADT: 237

SR 2039

Good

Over: Black Dog Hollow Run

0.1 mi S of SR 0088, Washington, PA

Built 2010 Load: 45.4 t ADT: 1,450

Shadyside Road

Good

Over: Broad Run

3581-C7, Chester, PA

Built 2010 Load: 45.4 t ADT: 2,200

OAK RD

Good

Over: DAWSON RUN

1/2 MILE FR TR 910, Allegheny, PA

Built 2012 Load: 45.4 t ADT: 6,102

T-588 HUSHON ROAD

Good

Over: FISHING CREEK

2.2 W DELTA / FISH CREEK, York, PA

Built 2012 Load: 45.4 t ADT: 172

Showing 18,001-18,050 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.