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

I 79

Good

Over: SR 1010 BIKE TRAIL

CECIL TWP, Washington, PA

Built 1998 Load: 37.2 t ADT: 44,834

CLIFF MINE RD

Good

Over: MONTOUR RUN

MT14 MONTOUR RUN #14, Allegheny, PA

Built 1998 Load: 37.2 t ADT: 7,310

T-771 MCWILLIAMS

Good

Over: PINE RUN

525 E of Eddyville Rd, Armstrong, PA

Built 1998 Load: 37.2 t ADT: 100

BRIDGE 499 T-907

Good

Over: OVER SANDY CREEK

COUNTY LINE SANDY CREEK, Mercer, PA

Built 1999 Load: 37.2 t ADT: 188

SR 958

Good

Over: OVER LT.BROKENSTRAW CK.

FREEHOLD TOWNSHIP, Warren, PA

Built 2001 Load: 37.2 t ADT: 556

SR 3008 CRANE ROAD

Good

Over: OVER CONNEAUTTEE CREEK

WASHINGTON TOWNSHIP, Erie, PA

Built 2001 Load: 37.2 t ADT: 2,117

SR 4007 BEAR CREEK

Good

Over: OVER SR 90 AMVETS MEM.HY

FAIRVIEW TOWNSHIP, Erie, PA

Built 2002 Load: 37.2 t ADT: 1,026

SR 3010

Good

Over: OVER BROKENSTRAW CREEK

SPRING CREEK TOWNSHIP, Warren, PA

Built 2003 Load: 37.2 t ADT: 348

SR 1003

Good

Over: US 30

2 MILES EAST OF BEDFORD, Bedford, PA

Built 2003 Load: 37.2 t ADT: 701

PA 72; S.R.0072

Good

Over: AMTRAK

NW. Corner Lancaster City, Lancaster, PA

Built 2003 Load: 37.2 t ADT: 18,414

SR 3006 US 6N

Good

Over: OVER CONNEAUT CREEK

CONNEAUT TOWNSHIP, Erie, PA

Built 2004 Load: 37.2 t ADT: 3,483

SR 36 COL.DRAKE HY

Good

Over: OVER PITHOLE CREEK

ALLEGHENY TOWNSHIP, Venango, PA

Built 2004 Load: 37.2 t ADT: 1,584

US 30; SR 0030 WB

Good

Over: AMTRAK

GREENFIELD STATION, Lancaster, PA

Built 2002 Load: 37.2 t ADT: 32,559

KENNEDY AVE.

Good

Over: TURTLE CREEK

.15 MI W OF LINCOLN AVE, Westmoreland, PA

Built 2002 Load: 37.2 t ADT: 5,512

T-588 NAGLE ROAD

Good

Over: NSRC/CSX/Other RR

800 FT NW OF SR 20, Erie, PA

Built 2002 Load: 37.2 t ADT: 9,482

SR 518 WALNUT ST

Good

Over: PINE HOLLOW RUN

CITY OF HERMITAGE, Mercer, PA

Built 2006 Load: 37.2 t ADT: 7,823

SR 3014 OLD ST.RD.

Good

Over: OVER LITTLE CONNEAUT CK.

WASHINGTON TOWNSHIP, Erie, PA

Built 2005 Load: 37.2 t ADT: 680

SR 80-I 80

Good

Over: R J CORMAN

.8 MI EAST OF EXIT 120, Clearfield, PA

Built 2005 Load: 37.2 t ADT: 9,900

SR 99-I 99

Good

Over: ZENDT LANE

1 MILE NORTH PORT MATILDA, Centre, PA

Built 2005 Load: 37.2 t ADT: 10,995

SR 219-US 219

Good

Over: FORMAN ST & TUNUNGWANT C

CITY OF BRADFORD, McKean, PA

Built 2007 Load: 37.2 t ADT: 3,573

SR 1021

Good

Over: WICONISCO CREEK

1.5 MI N.W. E-VILLE, Dauphin, PA

Built 2005 Load: 37.2 t ADT: 875

SR 219-US 219

Good

Over: SR 4015 (ELM STREET)

CITY OF BRADFORD, McKean, PA

Built 2006 Load: 37.2 t ADT: 3,482

TANNERY ROAD

Good

Over: OVER I-90/ EB.W.B.

GIRARD TOWNSHIP, Erie, PA

Built 2007 Load: 37.2 t ADT: 1,853

SR 208 GROVE CITY

Good

Over: OVER I-79 NB/SB

SPRINGFIELD TOWNSHIP, Mercer, PA

Built 2007 Load: 37.2 t ADT: 11,221

SR 15 NB

Good

Over: 2ND AVE & NORFOLK SO. RR

S.END OF MARKET ST. BRDG, Lycoming, PA

Built 2007 Load: 37.2 t ADT: 13,032

SR 98

Good

Over: CUSSEWAGO CREEK

ELK CREEK TOWNSHIP, Erie, PA

Built 2008 Load: 37.2 t ADT: 1,664

PA 281

Good

Over: BEAVER DAM CREEK

0.5 MILE S. OF STOYSTOWN, Somerset, PA

Built 2008 Load: 37.2 t ADT: 4,623

PA TPK (RAMP Q)

Good

Over: SR 0309; PA TPK Ramp AB

FORT WASHINGTON INT., Montgomery, PA

Built 2009 Load: 37.2 t ADT: 2,063

PA997; SR 997

Good

Over: I-81; SR0081

0.25mile S. of Scotland, Franklin, PA

Built 2009 Load: 37.2 t ADT: 8,469

CHURCH HILL ROAD

Good

Over: BRANCH OF GALLOWS RUN

FERNDALE 04D10/ 2584B05, Bucks, PA

Built 2009 Load: 37.2 t ADT: 1,398

River Road

Good

Over: Mill Creek

1.4 Mi NE PA-23 3478-J3, Montgomery, PA

Built 2009 Load: 37.2 t ADT: 700

SR 2018

Good

Over: SHAFFERS CREEK

1.2 MI. SE. OF MENCH, Bedford, PA

Built 2009 Load: 37.2 t ADT: 98

SR 1010 BR PENN ST

Good

Over: STANDING STONE CREEK

HUNTINGDON, Huntingdon, PA

Built 2009 Load: 37.2 t ADT: 4,202

SR 51

Good

Over: FALLEN TIMBER RUN

750 NW WEIGEL HILL RD, Allegheny, PA

Built 2009 Load: 37.2 t ADT: 22,891

SR 1008

Good

Over: BUSHKILL CREEK

1.5 MI N OF CHERRY HILL, Northampton, PA

Built 2009 Load: 37.2 t ADT: 803

US Rte 11

Good

Over: SR 0581 E & W

Camp Hill Boro, Cumberland, PA

Built 2010 Load: 37.2 t ADT: 45,237

SR 3007

Good

Over: POTTS RUN

CARNWATH, Clearfield, PA

Built 2010 Load: 37.2 t ADT: 111

SR 4007 Sugar Lk R

Good

Over: OVER LAKE CREEK

JACKSON TOWNSHIP, Venango, PA

Built 2010 Load: 37.2 t ADT: 283

SR 2035

Good

Over: PA TURNPIKE (I-476)

PITTSTON TWP OVER TRNPK, Luzerne, PA

Built 2010 Load: 37.2 t ADT: 8,146

SR 4004

Good

Over: LITTLE JUNIATA RIVER

VILLAGE OF BARREE, Huntingdon, PA

Built 2010 Load: 37.2 t ADT: 551

SR 1005 TWIN LAKES

Good

Over: SHOHOLA CREEK

SHOHOLA TWP .4 S TR 434, Pike, PA

Built 2010 Load: 37.2 t ADT: 764

SR 3033

Good

Over: WYALUSING CREEK

RUSH TWP 400 N TR 706, Susquehanna, PA

Built 2010 Load: 37.2 t ADT: 61

SR 158 Mercer Rd.

Good

Over: LITTLE NESHANNOCK CREEK

WILMINGTON TOWNSHIP, Mercer, PA

Built 2010 Load: 37.2 t ADT: 2,427

SR 426

Good

Over: OVER HARE CREEK

COLUMBUS TWP, Warren, PA

Built 2010 Load: 37.2 t ADT: 1,141

PA TPK (I-276)

Good

Over: PRIV. RD OHARA LANDFILL

SOUTH OF NORRISTOWN, Montgomery, PA

Built 2007 Load: 37.2 t ADT: 21,117

PA TPK (Toll 43)

Good

Over: Dunlap Creek

East of Exit 26, Fayette, PA

Built 2011 Load: 37.2 t ADT: 2,000

NOTTINGHAM DRIVE

Good

Over: BRANCH OF FRENCH CREEK

NE of Penn Drive 3251B4, Chester, PA

Built 1990 Load: 37.2 t ADT: 350

Apache Road T-533

Good

Over: Shickshinny Creek

1/2M HUNLOCK-HARVEYVILLE, Luzerne, PA

Built 1997 Load: 37.2 t ADT: 75

T404 UPPER PORTAGE

Good

Over: PORTAGE CREEK

1200 FT WEST OF SR 155, McKean, PA

Built 2019 Load: 37.2 t ADT: 50

CHADWYCK LN

Good

Over: TRIB LITTLE CONESTOGA CK

1500 N. OF STEVENS ST., Lancaster, PA

Built 1997 Load: 37.2 t ADT: 100

Showing 14,951-15,000 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.