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 1017 CAPP ROAD

Good

Over: OVER BOLES RUN

VENANGO TOWNSHIP, Crawford, PA

Built 2003 Load: 32.7 t ADT: 340

SR 99 I-99

Good

Over: SEDA-COG/NIT&BALD EGL RR

1.0 MI E PORT MATILDA, Centre, PA

Built 2003 Load: 32.7 t ADT: 10,995

SR 505 GLENWOOD AV

Good

Over: OVER MILL CREEK

CITY OF ERIE, Erie, PA

Built 2003 Load: 32.7 t ADT: 7,782

ROCKY SPRING RD

Good

Over: ROCKY SPRING TRIB

0.9 MI NW OF SR 4015, Franklin, PA

Built 2003 Load: 32.7 t ADT: 200

SR 144-PA 144

Good

Over: DRURY RUN

2 MILES NORTH OF RENOVO, Clinton, PA

Built 2005 Load: 32.7 t ADT: 782

CHESTNUT TREE ROAD

Good

Over: E. BR. BRANDYWINE CREEK

E OF HONEY BROOK 10F10, Chester, PA

Built 2005 Load: 32.7 t ADT: 2,324

SR 322-US 322

Good

Over: TRIB COLD STREAM

PHILIPSBURG, Centre, PA

Built 2005 Load: 32.7 t ADT: 8,921

Penny Lane Drive

Good

Over: Tributary to Bushy Run

1 Mile W of Claridge, Westmoreland, PA

Built 2000 Load: 32.7 t ADT: 250

SR 99-I 99

Good

Over: ACCESS ROAD

3 MILES SW PORT MATILDA, Centre, PA

Built 2006 Load: 32.7 t ADT: 6,883

Mosside Blvd Rt 48

Good

Over: Access Rd

0.1mi NE OF WALL AVE, Allegheny, PA

Built 2006 Load: 32.7 t ADT: 16,042

T-415 CREEK RD

Good

Over: TRIB TO CROOKED CR

30 S. OF SR-2036, Armstrong, PA

Built 2006 Load: 32.7 t ADT: 50

SR 4049 (5th ST)

Good

Over: SR 78 (LR 285)

N 5th ST HAMBURG, Berks, PA

Built 2006 Load: 32.7 t ADT: 1,114

SR 0347

Good

Over: EDDY CREEK

OLYPHANT BOR .5M S SR1016, Lackawanna, PA

Built 2008 Load: 32.7 t ADT: 7,365

CATLIN HOLLOW ROAD

Good

Over: NORTH BR. MEHOOPANY CK.

.5 MILE SOUTH OF LOVELTON, Wyoming, PA

Built 2008 Load: 32.7 t ADT: 100

T628(FAIR HILL RD)

Good

Over: EAST BR. WYALUSING CREEK

2 MILES WEST OF MONTROSE, Susquehanna, PA

Built 2008 Load: 32.7 t ADT: 75

T-317 Wells Road

Good

Over: Tr. to Antes Creek

0.4 MI.NE of COLLOMSVILLE, Lycoming, PA

Built 2002 Load: 32.7 t ADT: 50

T-955 Limekiln Rd

Good

Over: Trib to Yellow Breeches

2 Miles West of I-83, York, PA

Built 1983 Load: 32.7 t ADT: 860

SR 15 NB

Good

Over: TR TO STEAM VALLEY RUN

3 MI. SOUTH OF BUTTONWOOD, Lycoming, PA

Built 2008 Load: 32.7 t ADT: 6,017

CUCUMBER RUN RD

Good

Over: CUCUMBER RUN

OHIOPYLE SP, Fayette, PA

Built 1998 Load: 32.7 t ADT: 20

T-557

Good

Over: UNT to Little Fishing Cr

1.1 MI SOUTH OF MILLVILLE, Columbia, PA

Built 2008 Load: 32.7 t ADT: 100

CONSHOHOCKEN ROAD

Good

Over: PLYMOUTH RR/ACCESS ROAD

ARCELOR MITTAL 3367K06, Montgomery, PA

Built 2011 Load: 32.7 t ADT: 7,779

T-507 PLANK RD

Good

Over: PEQUEA CREEK

BETWEEN INT OF T-919, Lancaster, PA

Built 1975 Load: 32.7 t ADT: 150

HARTS RUN ROAD

Good

Over: BR HARTS RUN

2000FT EAST OF SR 0008, Allegheny, PA

Built 2009 Load: 32.7 t ADT: 6,319

SR 872 - PA 872

Good

Over: FIRST FK SINNEMAHONING C

COSTELLO, Potter, PA

Built 2010 Load: 32.7 t ADT: 765

MOREHALL ROAD

Good

Over: US RTE 202

US202 /PA 29 INT. 3474F2, Chester, PA

Built 2010 Load: 32.7 t ADT: 28,654

DEPOT STREET

Good

Over: FRENCH CREEK TRIB

850 SOUTH OF SR0006, Erie, PA

Built 2008 Load: 32.7 t ADT: 72

Frishkorn Road

Good

Over: Trib to Blockhouse Run

Int Frishkorn & Blockhous, Beaver, PA

Built 2009 Load: 32.7 t ADT: 25

T-512 KOLAK ROAD

Good

Over: CLEARFIELD CREEK

VILLAGE OF DEAN, Cambria, PA

Built 2010 Load: 32.7 t ADT: 130

LOWER STATE ROAD

Good

Over: NESHAMINY CREEK

S.W. DOYLESTOWN 3034E05, Bucks, PA

Built 2012 Load: 32.7 t ADT: 8,080

PA TPK (I-76) WB

Good

Over: SR1001 N.S. AV. R

Allegheny River, Allegheny, PA

Built 2010 Load: 32.7 t ADT: 16,799

PA TPK (I-76) EB

Good

Over: SR 1001 N.S. & A.V. RR

Allegheny River, Allegheny, PA

Built 2010 Load: 32.7 t ADT: 17,862

PA TPK (RAMP AB)

Good

Over: PA TPK (I-76)

LOWER SWATARA TWP, Dauphin, PA

Built 2007 Load: 32.7 t ADT: 11,974

SR 2051 COAL ST

Good

Over: TRIB TO BLACK CREEK

JEDDO BORO COAL ST, Luzerne, PA

Built 2011 Load: 32.7 t ADT: 833

I-81 NB; SR 0081

Good

Over: PA 465; SR 0465

1 MI. S. OF CARLISLE, Cumberland, PA

Built 2011 Load: 32.7 t ADT: 19,754

I-81 SB; SR 0081

Good

Over: PA 465; SR 0465

1 MI. S. OF CARLISLE, Cumberland, PA

Built 2011 Load: 32.7 t ADT: 23,576

SR 4033

Good

Over: Garners Run

0.9 mi N from SR 0018, Greene, PA

Built 2011 Load: 32.7 t ADT: 149

SR 1013 Thompson

Good

Over: OVER SHIRLEY RUN

OIL CREEK TWP, Crawford, PA

Built 2011 Load: 32.7 t ADT: 288

PA TPK (I-276)

Good

Over: SEPTA; FROG RUN

SOUTH OF NORRISTOWN, Montgomery, PA

Built 2006 Load: 32.7 t ADT: 21,117

ECHO VALLEY RD

Good

Over: N FORK LITTLE BEAVER CR

500 NW OF TWP RD 703, Beaver, PA

Built 2011 Load: 32.7 t ADT: 821

SR 1009 L. Wilhelm

Good

Over: LITTLE SHENANGO RIVER

PERRY TWP, Mercer, PA

Built 2011 Load: 32.7 t ADT: 465

Whitetail Drive

Good

Over: Fishing Creek

0.2 m sw of Pleasant View, York, PA

Built 1988 Load: 32.7 t ADT: 50

PA TPK (Toll 43)

Good

Over: SR 4003 Cox Run

West of Exit 26, Fayette, PA

Built 2011 Load: 32.7 t ADT: 2,000

THOMPSON RUN RD

Good

Over: PINE CREEK SOUTH

PS01 PINE CREEK SOUTH BR, Allegheny, PA

Built 2012 Load: 32.7 t ADT: 16,520

T-916 ALDER ROAD

Good

Over: BAKERS RUN

0.3 MILE N OF SR580 INTER, Indiana, PA

Built 2012 Load: 32.7 t ADT: 50

ELMWOOD BLVD

Good

Over: N. FORK LITTLE BEAVER CR

1/2 MI. S.W. OF SR 4001, Beaver, PA

Built 2012 Load: 32.7 t ADT: 2,338

PA TPK (I-476 SB)

Good

Over: LVRR Lehigh R PA 248

Parryville Boro, Carbon, PA

Built 2012 Load: 32.7 t ADT: 24,228

PA TPK (I-476 NB)

Good

Over: Pohopoco Cr &LowerMainRd

Parryville, Carbon, PA

Built 2012 Load: 32.7 t ADT: 30,509

T-658 BIG RUN ROAD

Good

Over: BIG RUN

0.4 MI. NW OF TIVOLI, Lycoming, PA

Built 2012 Load: 32.7 t ADT: 25

SR 2028

Good

Over: I-83 SR 0083

LEMOYNE WEST OF LR250, Cumberland, PA

Built 2013 Load: 32.7 t ADT: 11,030

US 209(LR 45011)

Good

Over: I-80(LR 794)

US209 OVER I-80 EXIT 309, Monroe, PA

Built 2013 Load: 32.7 t ADT: 32,529

Showing 13,251-13,300 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.