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

TURNPIKE RAMP AB

Good

Over: PA TPK (I-76)

FAIRVIEW TWP, York, PA

Built 1949 Load: 51.7 t ADT: 8,905

RAMP VN;RAMP VS

Good

Over: THIRD STREET

VINE ST.INTERCH. 3590G07, Philadelphia, PA

Built 1989 Load: 51.7 t ADT: 67,510

SR 99 - I 99

Good

Over: SR 550-PA 550

BELLEFONTE, Centre, PA

Built 1997 Load: 51.7 t ADT: 8,056

T-331 FOX HOLLOW

Good

Over: CEDAR CREEK

1.5 MI N JUNC I80 & SR, Clinton, PA

Built 1997 Load: 51.7 t ADT: 115

SCOTTSVILLE ROAD

Good

Over: LITTLE MEHOOPANY CREEK

.3 MILES NW OF MEHOOPANY, Wyoming, PA

Built 1996 Load: 51.7 t ADT: 200

SR 220

Good

Over: BUCKS CREEK

VILLAGE OF MILAN, Bradford, PA

Built 1997 Load: 51.7 t ADT: 9,770

SR 322-US 322

Good

Over: SR 4001 AND TEA CREEK

1 MI N REEDSVILLE, Mifflin, PA

Built 1998 Load: 51.7 t ADT: 8,394

SR 322-US 322

Good

Over: SR 4001 AND TEA CREEK

1 MI N REEDSVILLE, Mifflin, PA

Built 1998 Load: 51.7 t ADT: 8,585

T-721 COOLSPRING

Good

Over: LITTLE SANDY CREEK

0.1 MILE NORTH OF SR 36, Jefferson, PA

Built 1998 Load: 51.7 t ADT: 100

BRIDGE 2712 T-459

Good

Over: OVER WOLF CREEK EAST BR.

BRINKLEY RD. WOLF CREEK, Mercer, PA

Built 1999 Load: 51.7 t ADT: 73

SR3007 EVERGREEN R

Good

Over: GARDNER CREEK

RANSOM TWP JNC SR 3001, Lackawanna, PA

Built 1999 Load: 51.7 t ADT: 615

SR 322-US 322 E.B.

Good

Over: SCRABBLE RD LAUREL CR

1.5 MI NW MILROY, Mifflin, PA

Built 1999 Load: 51.7 t ADT: 8,370

SR 322-US 322 W.B.

Good

Over: SCRABBLE RD LAUREL CR

1.5 MI NW MILROY, Mifflin, PA

Built 1999 Load: 51.7 t ADT: 8,559

SR 2017

Good

Over: TRIB YELLOW BREECHES CR

1.2 MILES S. OF LR 21069, Cumberland, PA

Built 1999 Load: 51.7 t ADT: 6,465

SR 0858 TR 858

Good

Over: NO BR WYALUSING CREEK

MIDDLTWN TWP .2M S SR4017, Susquehanna, PA

Built 2000 Load: 51.7 t ADT: 277

SR4024 GRASSY POND

Good

Over: HUNTINGTON CREEK

ROSS TWP 1.2 M S TR 118, Luzerne, PA

Built 2000 Load: 51.7 t ADT: 344

SR 80-I 80

Good

Over: SR 64-PA 64

EX 173 LAMAR INTERCHANGE, Clinton, PA

Built 2000 Load: 51.7 t ADT: 9,634

T-365;J FRANK RD

Good

Over: PA TPK (TOLL 43)

ABOUT 1MI. N OF TOLLBOOTH, Fayette, PA

Built 1998 Load: 51.7 t ADT: 500

PA 33 SB

Good

Over: SR 2020

OVER WM. PENN HWY., Northampton, PA

Built 2001 Load: 51.7 t ADT: 38,351

SR 11

Good

Over: SECHLER RUN

1.75MI E OF DANVILLE, Montour, PA

Built 2001 Load: 51.7 t ADT: 11,659

SR 99-I 99

Good

Over: PRISON ROAD D

1 MI S SR 150 INTERCHANGE, Centre, PA

Built 2001 Load: 51.7 t ADT: 12,128

SR 99-I 99

Good

Over: PRISON ROAD D

1 MI S SR 150 INTERCHANGE, Centre, PA

Built 2001 Load: 51.7 t ADT: 12,501

ROCK RUN ROAD

Good

Over: HOUNDS RUN

4 MI NE OF RALSTON, Lycoming, PA

Built 1997 Load: 51.7 t ADT: 15

S.R. 14

Good

Over: MILL CREEK

CANTON BOROUGH, Bradford, PA

Built 2003 Load: 51.7 t ADT: 4,282

SR 2071

Good

Over: MUNCY CREEK

1 MI W OF BRYAN MILLS, Lycoming, PA

Built 2003 Load: 51.7 t ADT: 187

SR 4028

Good

Over: FISHERS RUN

1.0 MI. E. US 15, York, PA

Built 2003 Load: 51.7 t ADT: 2,643

SR 2035 SUSCON RD

Good

Over: MILL CREEK

DUPONT BOROJCT SR 315, Luzerne, PA

Built 2004 Load: 51.7 t ADT: 8,146

T-742 CREEK RD

Good

Over: SOUTH BRANCH PLUM CREEK

BTW T359 & SR4009, Indiana, PA

Built 2004 Load: 51.7 t ADT: 52

SR 22-US 22 WB

Good

Over: SR 3005 (BIG RIDGE RD)

1.5 MI WEST OF LEWISTOWN, Mifflin, PA

Built 2005 Load: 51.7 t ADT: 4,676

SR 1004 MILLERS CH

Good

Over: ARMSTRONG CREEK

4 MI.S. E-VILLE, Dauphin, PA

Built 2005 Load: 51.7 t ADT: 71

PA 272 : Reading

Good

Over: INDIAN RUN

0.25 MI.N.E.OF EPHRATA, Lancaster, PA

Built 2006 Load: 51.7 t ADT: 14,477

SR 2027

Good

Over: ROARING RUN

MINERAL SPRINGS, Clearfield, PA

Built 2006 Load: 51.7 t ADT: 844

SR 3003

Good

Over: SUGAR HOLLOW CREEK

0.5 M W OF TR 29, Wyoming, PA

Built 2007 Load: 51.7 t ADT: 898

T-851 EAST RUN RD

Good

Over: EAST RUN

BTW T880 & T673, Indiana, PA

Built 2006 Load: 51.7 t ADT: 200

First Street

Good

Over: SR 65 N-S RR

Mike Maruca Memorial Br, Allegheny, PA

Built 2007 Load: 51.7 t ADT: 4,500

T-649 FAIRVIEW RD

Good

Over: BRANCH PRATHER CREEK

NORTH OF PRATHER CORNERS, Venango, PA

Built 2007 Load: 51.7 t ADT: 120

SR 2001

Good

Over: LAUREL RUN

4 MI SW SINNEMAHONING, Cameron, PA

Built 2008 Load: 51.7 t ADT: 383

T-786

Good

Over: BENNETT BRANCH

250 FT SE OF T407, Clearfield, PA

Built 2006 Load: 51.7 t ADT: 10

RAMP B

Good

Over: US 291; LOCAL ROAD

COMMODORE BARRY BRIDGE, Delaware, PA

Built 2011 Load: 51.7 t ADT: 5,625

NORTH BRANCH ROAD

Good

Over: Br. Robinson Run

50FT W OF SR 3063, Allegheny, PA

Built 2009 Load: 51.7 t ADT: 5,639

SR 258 Butler Pike

Good

Over: OVER TINKERS RUN

LIBERTY TWP, Mercer, PA

Built 2010 Load: 51.7 t ADT: 2,373

SR 3005

Good

Over: BRANCH MAHANTANGO CREEK

1 MILE EAST OF FREMONT, Snyder, PA

Built 2010 Load: 51.7 t ADT: 273

SR 2045

Good

Over: MILLARD CREEK

LENOX TWP .7 M E SR 2041, Susquehanna, PA

Built 2010 Load: 51.7 t ADT: 48

T-801 S CUSTER AVE

Good

Over: MILL CREEK

AT MEADOW CREEK RD, Lancaster, PA

Built 2010 Load: 51.7 t ADT: 475

SR 2025

Good

Over: Redstone Creek

1.2 mi N of SR 3027, Fayette, PA

Built 2010 Load: 51.7 t ADT: 932

SR 147

Good

Over: DALMATIA CREEK

VILLAGE OF DALMATIA, Northumberland, PA

Built 2011 Load: 51.7 t ADT: 1,665

SR 2017

Good

Over: TRIB W BR LIT ANTIETAM

1 MI.S. OF FIVE FORKS, Franklin, PA

Built 2011 Load: 51.7 t ADT: 1,001

STONE POST ROAD

Good

Over: HATCH GRAVEL CREEK

AT NW CORNER OF BATH, Northampton, PA

Built 2012 Load: 51.7 t ADT: 100

PA TPK (TOLL 43)

Good

Over: SR2048 Old National Pike

S of Exit 30, Washington, PA

Built 2011 Load: 51.7 t ADT: 2,000

SR285 BROOKS X-ING

Good

Over: SMOCK RUN

GREENWOOD TWP, Crawford, PA

Built 2012 Load: 51.7 t ADT: 2,149

Showing 19,151-19,200 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.