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 8016

Good

Over: SR 22-US 22

LEWISTOWN, Mifflin, PA

Built 2004 Load: 67.1 t ADT: 1,881

INTERSTATE 295 WB

Good

Over: Del. R PA 32 NJ 29 SB

.5MI.N.YARDLEY BO. 33C08, Bucks, PA

Built 2019 Load: 67.7 t ADT: 20,100

SR 1013

Good

Over: MILL CREEK

2.5 MI.S.LERAYSVILLE BORO, Bradford, PA

Built 1989 Load: 68.0 t ADT: 158

RAMP S-L OFF TO 30

Good

Over: LANCASTER AVENUE/3477-D5

LANCASTER AVE.INT. 14H10, Delaware, PA

Built 1990 Load: 68.0 t ADT: 11,702

SR 1004

Good

Over: MURRAY RUN

2 MILE SE OF CALVERT, Lycoming, PA

Built 1994 Load: 68.0 t ADT: 368

W. PERRY TWP. T314

Good

Over: W. BR. MAHANTANGO CREEK

2 MI SE OF RICHFIELD, Snyder, PA

Built 1955 Load: 68.0 t ADT: 50

SR 1001

Good

Over: OVER LAMBS CREEK

5 MI NW OF MANSFIELD, Tioga, PA

Built 1993 Load: 68.0 t ADT: 348

SR 3001

Good

Over: FAHNESTOCK RUN

1.75 MI.S.OF LEETONIA, Tioga, PA

Built 1996 Load: 68.0 t ADT: 15

T-434

Good

Over: APPENZELL CK

WEST OF LR45021, Monroe, PA

Built 2001 Load: 68.0 t ADT: 732

SR 4021 BEATTY SCH

Good

Over: SHENANGO RIVER TRIB

SUGAR GROVE TOWNSHIP, Mercer, PA

Built 2003 Load: 68.0 t ADT: 132

SR 487

Good

Over: OVER COLES CREEK

8 MILES N BENTON, Columbia, PA

Built 2003 Load: 68.0 t ADT: 1,473

HUNTERS LANE-T309

Good

Over: INDIAN CREEK

0.25 MI N.W.OF SR 381, Westmoreland, PA

Built 2003 Load: 68.0 t ADT: 20

SR 4007

Good

Over: SINDELDECKER BRANCH

0.2 MI..E.OF SALUVIA, Fulton, PA

Built 2007 Load: 68.0 t ADT: 395

SR 2020

Good

Over: over Ten Mile Run

1 mi West of Mifflinville, Columbia, PA

Built 2009 Load: 68.0 t ADT: 355

RAYMOND P SHAFE HY

Good

Over: CAMPBELLS RUN RD

I-79 SB O/CAMPBELLS RN RD, Allegheny, PA

Built 1973 Load: 68.9 t ADT: 24,277

BRIDGE 1315 T-589

Good

Over: OVER SHENANGO RIVER BR.

E.LAKE RD. PYMATUNING TWP, Mercer, PA

Built 1965 Load: 68.9 t ADT: 765

SR 54

Good

Over: LOGAN RUN

2 MILES EAST OF RIVERSIDE, Northumberland, PA

Built 1985 Load: 68.9 t ADT: 8,693

MIDDLE RD

Good

Over: OVER KREBS GAP RUN

3.5MI W.OF BENFER, Snyder, PA

Built 1951 Load: 68.9 t ADT: 411

SR 3039

Good

Over: LAUREL HILL CREEK

.5 MI.W.OF TRENT, Somerset, PA

Built 1910 Load: 68.9 t ADT: 88

SR 2007

Good

Over: OVER TURTLE CREEK

2 MILES SW OF LINNTOWN, Union, PA

Built 2000 Load: 68.9 t ADT: 270

PTC CONN. TO I-70

Good

Over: SR 2029

WB AT BREEZEWOOD INTRCHNG, Bedford, PA

Built 1999 Load: 68.9 t ADT: 8,722

SR 3004 LT.HICKORY

Good

Over: OVER LITTLE HICKORY CK

HICKORY TOWNSHIP, Forest, PA

Built 2004 Load: 68.9 t ADT: 143

SR 1010 - TSR 567

Good

Over: CHATHAM RUN

WOOLRICH, Clinton, PA

Built 2006 Load: 68.9 t ADT: 488

LEHNENBERG ROAD

Good

Over: TRB DELAWARE(RODGES RUN)

LEHNENBERG;MINE 04B03, Bucks, PA

Built 2007 Load: 68.9 t ADT: 132

SR 0130

Good

Over: Slate Creek

SE of Greensburg, Westmoreland, PA

Built 2009 Load: 68.9 t ADT: 4,687

MARKET STREET

Good

Over: GLADE RUN CREEK

0.12 MI N OF SR 68, Butler, PA

Built 2015 Load: 69.0 t ADT: 500

SR 3010 PAGEVILLE

Good

Over: OVER CUSSEWAGO CK W BR

ELK CREEK TOWNSHIP, Erie, PA

Built 1956 Load: 69.7 t ADT: 127

WASHINGTON AV

Good

Over: CHARTIERS CREEK

SOUTH END BRIDGE, Allegheny, PA

Built 1985 Load: 69.9 t ADT: 25,873

SR0258

Good

Over: WOLF CREEK

CHRISTLEYS MILLS NO.2, Butler, PA

Built 1962 Load: 69.9 t ADT: 2,373

SR 1009

Good

Over: W BR CLARION RIVER

JOHNSONBURG BORO, Elk, PA

Built 1992 Load: 69.9 t ADT: 3,245

US 222; SR 0222

Good

Over: BIG SPRING RUN

1 MI NE OF WILLOW STREET, Lancaster, PA

Built 1957 Load: 69.9 t ADT: 12,015

US 22

Good

Over: PA 611(SR0611)

CITY OF EASTON, Northampton, PA

Built 1950 Load: 69.9 t ADT: 30,300

SR 147

Good

Over: OVER BOILE RUN

8 MI S OF SUNBURY, Northumberland, PA

Built 1991 Load: 69.9 t ADT: 3,429

ON TSR 530

Good

Over: BRADLEY RUN

1 MI S CLARA, Potter, PA

Built 1952 Load: 69.9 t ADT: 172

US 6

Good

Over: LONG RUN

0.6 MI EAST OF GAINES, Tioga, PA

Built 1959 Load: 69.9 t ADT: 3,465

SR 1023

Good

Over: MCMULLEN RUN

LIGONIER TOWNSHIP, Westmoreland, PA

Built 1993 Load: 69.9 t ADT: 699

Morris Street

Good

Over: SEPTA (Chestnut Hill W.)

N of Coulter Street 17D11, Philadelphia, PA

Built 1921 Load: 69.9 t ADT: 2,600

T-754 RICHMOND TWP

Good

Over: SLATE CREEK

0.4 MI W OF CANOE CAMP, Tioga, PA

Built 2003 Load: 69.9 t ADT: 50

SR 219-US 219

Good

Over: CLEAR RUN

DUBOIS SANDY TWP LINE, Clearfield, PA

Built 2005 Load: 69.9 t ADT: 11,811

SR 1004 Stoneboro

Good

Over: COOLSPRING CREEK

FAIRVIEW TWP, Mercer, PA

Built 2010 Load: 69.9 t ADT: 391

TR539 YARNES ROAD

Good

Over: TRIBUTARY 06406 WEST BRA

1/4 MI WEST BELMONT TPK, Wayne, PA

Built 2017 Load: 69.9 t ADT: 10

FROG HOLLOW ROAD

Good

Over: BUCK RUN

KING RANCH 37J2, Chester, PA

Built 2016 Load: 70.6 t ADT: 350

SR 3013

Good

Over: MARSH RUN

1 MI N OF KNOXLYN, Adams, PA

Built 1947 Load: 70.8 t ADT: 604

SR 0028 SH

Good

Over: SCOUT RESERVATION ROAD

N.B. @ SCOUT RESERVATION, Allegheny, PA

Built 1963 Load: 70.8 t ADT: 37,917

RAMP T

Good

Over: PINE CREEK

N.B.OFF RP.@ SHARPSBURG, Allegheny, PA

Built 1957 Load: 70.8 t ADT: 4,758

T424 SCOTCH VALLEY

Good

Over: BRUSH RUN

1 MI.NE.OF HOLLIDAYSBURG, Blair, PA

Built 1987 Load: 70.8 t ADT: 3,120

T454 Lwr Clover Cr

Good

Over: CLOVER CREEK

1 MI.E.OF WILLIAMSBURG, Blair, PA

Built 1939 Load: 70.8 t ADT: 199

SR 4012 SHADELAND

Good

Over: OVER MUDD RUN

BEAVER TOWNSHIP, Crawford, PA

Built 1995 Load: 70.8 t ADT: 176

RAMP L-N; N.B.ON

Good

Over: SEPTA (P&W)

NEAR VILLANOVA 14H09, Delaware, PA

Built 1990 Load: 70.8 t ADT: 11,141

SR 0119

Good

Over: Redstone Creek Abnd R/R

NORTH UNION TOWNSHIP, Fayette, PA

Built 1971 Load: 70.8 t ADT: 10,666

Showing 20,051-20,100 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.